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Business Travel and Expense Definitions

Whether you’re a seasoned professional or a newcomer to the corporate travel and expense landscape, this resource is your go-to guide for understanding key terms and concepts in the industry. 

Explore the definitions, gain insights, and elevate your expertise in the language of business travel and expense management.

A

What is accrual accounting and when must your business use it? Compare methods, learn IRS thresholds, and see how it shapes T&E reporting.
What is an ACRISS code and how does it help business travelers compare rental cars? Decode the four-character system used across booking platforms.
What is actual expense reimbursement and when does it beat per diem? Learn the IRS rules, documentation requirements, and where companies lose time.
What is an APEX fare and when should travel managers require one? Compare the savings, restrictions, and booking windows.
What is agent-assisted booking and when does it outperform self-service tools? See how leading programs balance both channels.
What is an air policy and when should finance teams formalize one? See class-of-service rules, booking windows, and compliance strategies.
What are airline regulations and how do they affect corporate travel costs? Explore refund rights, compliance rules, and 2026 border changes.
What is an airline reservation system and how does it power every flight booking? Learn the technology behind real-time seat inventory and ticketing.
What is ARC and why do travel agencies need accreditation? How settlement, data, and compliance shape airline ticketing in the U.S.
What is an airport lounge and how do business travelers access one? Explore lounge types, corporate benefits, and how Navan maximizes every trip.
How do you get airport lounge access? Five paths from credit cards to elite status — and how to track benefits you already have.
What is amortization and how does it affect your tax deductions? Learn the difference between asset and loan amortization for business finance.
What are ancillary fees and how do they affect corporate travel budgets? Learn the types, costs, and strategies finance teams use to control them.
Artificial intelligence (AI) is a field of study focused on computer systems that can learn, reason, and make decisions in ways that mimic human intelligence, often improving over time.

B

What is a balance sheet and how do travel expenses affect it? Discover how T&E costs flow through assets, liabilities, and equity.
What is basic economy and when does the fare savings actually cost more? Compare restrictions, baggage rules, and corporate travel policy implications.
What is a best available rate and how does it affect hotel pricing? Explore how BAR shapes corporate travel costs and negotiated rates.
What is a billback and when do corporate travel programs use one? Compare billback to virtual cards and other hotel payment methods.
What is a blanket purchase order and when should procurement teams use one? Learn the setup, release order process, and how BPOs cut costs.
What is bleisure travel and how are companies managing the policy shift? Explore adoption data, risks, and best practices for blended trips.
What is blended travel and how should your company manage it? Learn the policy, tax, and compliance rules for mixing business and leisure trips.
What is boarding priority and how can business travelers get it consistently? Learn which factors determine boarding order and how loyalty status helps.
What is a booking engine and how does it connect travelers to real-time inventory? Explore the technology behind modern travel reservations.
What makes a boutique hotel different, and should your travel policy include one? Explore market data, sourcing tips, and business travel best practices.
What is business continuity and why does it matter for corporate travel programs? Learn how continuity planning protects travelers during disruptions.
What is business travel and how do companies manage it? Learn the types, tax rules, expense policies, and best practices.

C

What is cabin pressure and why does it matter for business travelers? Discover how aircraft pressurization affects your health, comfort, and productivity.
What is CapEx and when does a purchase qualify as a capital expense? Discover how the CapEx versus OpEx distinction shapes budgets and tax treatment.
What is a car rental agreement, and why do fine-print clauses matter for business travelers? Learn key terms, coverage types, and mileage rules.
What are carbon emissions in business travel and why do regulators now require disclosure? Learn Scope 3 tracking methods and reduction strategies.
What is a carry-on policy and how do cabin bag rules vary by airline and fare class? Compare size limits, fees, and corporate travel considerations.
What is categorization in T&E, and why do miscoded receipts break forecasting? Learn how labels link spend to ledgers, audits, and tax rules.
What is a CDW and when should business travelers decline it? Learn how corporate cards, policy rules, and international mandates affect your decision.

Centralized Billing

Centralized billing is a form of billing in which the customer receives a consolidated invoice of all travel charges.

Chain Discounts

A chain discount is negotiated between businesses and entire hotel chains. If the company is large enough, it may be able to receive a blanket discount at all chain properties.
What is a chart of accounts and when should finance teams restructure one? Numbering systems, T&E categories, and common mistakes.
What is charting rail travel and why are companies building rail-first policies? Explore booking strategies, emissions data, and corridor planning.
What is checked baggage, and when should business travelers check a bag vs. carry on? Learn fees, weight limits, and corporate reimbursement rules.
What are city pairs and how do travel managers use them? Learn route-level analysis for airline negotiations and spend optimization.

Class of Service (COS)

Class of service (COS) refers to different categories or levels of accommodation, seating, or service provided by airlines or hotels. COS often includes distinctions like basic economy class, business class, and first class in air travel, or standard rooms versus suites in hotels.

CLEAR

CLEAR is a biometric identity verification system used at airports and other venues in the United States, allowing pre-registered individuals to bypass traditional security lines by verifying their identity through fingerprint or eye scans.
What is a corporate negotiated rate, and when does it actually save money? Compare CNR pricing models, BAR, and key contract terms.
What is a codeshare flight and whose rules apply when you board? Learn how codeshares affect baggage, miles, and corporate booking.

Computer Reservation System (CRS)

A computer reservation system (CRS) is a central platform used by travel agents, airlines, hotels, and other travel service providers to manage and facilitate reservations and bookings.

Consortia Rate

A consortia rate is a discounted rate agreement between an agency and a hotel. Consortia rates are negotiated by travel management companies, making them available to all the agency’s travelers and can include various value-adds.

Content

In the travel industry, content refers to the comprehensive information on flights, accommodations, and other travel services provided by airlines and suppliers, accessible through distribution platforms for travel agencies and other stakeholders.

Corporate Negotiated Rate (CNR)

Corporate negotiated rates are special discounts that companies negotiate with certain hotels, usually with the help of a travel management company.
What should a corporate travel policy include and how is it enforced? Learn policy components, compliance benchmarks, and modern enforcement approaches.

Corporate Travel Program

A corporate travel program is a company’s formal structure to facilitate business travel, typically done in partnership with a travel management company.
What is cost allocation and which method fits your organization? Compare direct, step-down, and ABC approaches for T&E cost management.
What is a cost center and why does every finance team need one? Learn the types, real examples, and how cost center coding connects to T&E.
What is cost control in T&E, and how do finance teams make it work in real time? Learn the monitoring cycle that keeps business spending on track.

Credit Card Authorization (CCA)

A credit card authorization (CCA) is a review, usually through a credit card processor, that checks if the customer has sufficient funds on their card to pay for the transaction.

Customer Channels

Customer channels are inventory sources such as the Expedia Affiliate Network and Priceline Partner Network.

Customer Data Fields (CDF)

Customer data fields (CDFs) are used to collect specific company information such as an employee’s role and department.

D

What is a dark hotel attack and why are business travelers the primary target? Learn how APT groups exploit hotel Wi-Fi to steal corporate data.
What is data integration in T&E, and why do only 12% of travel programs have a single data source? Explore approaches, ERP connections, and best practices.
What is DBC and when are business travelers entitled to cash compensation? Learn the federal formula, EU rules, and corporate policy implications.
What is a deadhead in aviation and how does crew repositioning affect your flights? Learn the meaning, types, and business travel impact.
What is a departure gate, and why does gate location matter for business travel? Learn how assignments affect lounge access, boarding, and connections.
What is depreciation and how do businesses calculate it? Learn MACRS methods, recovery periods, and how depreciation applies to T&E assets.
What is a designated booker and when should your company assign one? Compare roles, permissions, and travel management approaches.
What is a destination airport and why does airport choice matter for business travel? Learn how selecting the right airport affects cost and travel time.
What are direct costs and how do they differ from indirect costs? Learn the formula, real examples, and why accurate tracking matters for T&E.
What is a direct flight and how does it differ from nonstop or connecting? Learn when direct flights save time and money in business travel.
What counts as a discretionary expense for businesses? Learn the difference from fixed costs, see real examples, and discover how to manage non-essential spend.
What is a distribution platform in travel and how do GDS and NDC differ? Learn how they shape corporate travel inventory, pricing, and policy enforcement.
What is dunning and why does it matter for finance teams? Learn the stages, best practices, and key metrics behind effective payment collection.
What is duplicate expense detection and how does it prevent double payments? Learn the four pattern types, AI methods, and prevention best practices.
What is duty free, and when does it actually save money for business travelers? Learn the rules, exemption limits, and corporate expense implications.
What is duty of care in corporate travel and what are the employer's legal obligations? Learn the requirements, best practices, and risk management strategies.
What is dynamic pricing, and how does it affect corporate travel budgets? Explore how real-time rate changes shape airline and hotel costs.

E

What is economy class and how does it compare to other cabin classes? Learn seat specs, fare structures, and corporate travel policy implications.

Electronic Data Interchange for Administration, Commerce and Transport (EDIFACT)

Electronic Data Interchange for Administration, Commerce and Transport (EDIFACT) is a standardized communication protocol created in the 1980s to exchange data between systems. Travel management companies rely on this standard to communicate with travel providers via the global distribution system (GDS) and source travel options for their customers.
What is an electronic funds transfer and how does EFT work? Learn about ACH, wire transfers, and how businesses use EFT for expense reimbursement.
What are electronic receipts, and when does the IRS require one for business expenses? Learn how e-receipts simplify expense reporting and audits.

Electronic System for Travel Authorization (ESTA)

Electronic System for Travel Authorization (ESTA) is an automated system that determines the eligibility of visitors to travel to the United States under the Visa Waiver Program.
What is an emergency exit row and who qualifies? Learn the FAA rules, legroom benefits, and what corporate travel policies say about seat fees.
What is ESTA and when do business travelers need one? Understand the Visa Waiver Program application, fees, and allowed activities.
What is ETIAS and when do business travelers need it? Learn the cost, validity, application process, and how it compares to ESTA.
What is EU261 and when does it entitle business travelers to compensation? Understand the distance tiers, claim deadlines, and 2026 rule changes.
What is expense accrual and when must your finance team record one? Learn the journal entries, GAAP rules, and how accruals affect month-end close.
What is expense allocation, and which method reduces misclassification errors at month-end close? Learn headcount, ABC, and other core approaches.
What is expense analytics and how can finance teams use it? Explore KPIs, implementation best practices, and how it differs from basic reporting.
What is expense approval and how do approval workflows work? Learn about approval hierarchies, automation, and best practices for corporate expense policies.
What is an expense claim and how does it differ from an expense report? Learn what qualifies, how approval works, and why claims get rejected.
What is expense forecasting and why do most companies get their T&E budgets wrong? Learn the methods, inputs, and tools that improve forecast accuracy.
What is expense fraud and how much does it cost your organization? Learn the most common schemes, AI-driven risks, and prevention strategies.

Expense Management

Expense management refers to the systems companies deploy to process, pay, audit, and reimburse employee-initiated expenses.

Expense Management Software, Expense Management System, Expense Management Solution

Expense management software is technology utilized by companies to authorize, manage, and process employee expense claims. This software is also useful for implementing practices for employee expense reimbursement.
What is expense reconciliation and why do finance teams spend so much time on it? Learn the matching process, common discrepancies, and automation approaches.

Expense Reimbursement

Expense reimbursement is compensation paid by a business to employees, customers, or third parties that incur out-of-pocket expenses or overpayments on transactions made on behalf of that company.
What is an expense report and why does processing one take so long? Learn what goes on one, how approval works, and where companies lose time.

Expense Report Software

Expense report software is the technology used to automate and streamline the process of filing an expense report. When an expense is obtained by an employee, that software can automatically recognize, reconcile, and potentially reimburse as a function of the policy constraints within the software.
What is expense tracking and why do finance teams need it? Learn methods, error costs, and how automation cuts processing time by 80%.

F

Fair Market Price

The fair market price is the optimal fare for hotel rooms or airfares based on current prices. It is determined by the specific location, date, and demand at the time of the search.

Fare Basis Code

A fair basis code is an alphabetic or alpha-numeric code used by airlines to identify a fare type and allow airline staff and travel agents to find the rules applicable to that fare.
What is financial close and how long should it take? Learn the five phases, APQC benchmarks, and practices that cut days from your cycle.

Fintech

Fintech, or financial technology, is an industry that leverages innovative technology and software to enhance and streamline financial services. It encompasses areas such as digital payments, online banking, and automated investment platforms.

First Class

First class refers to the premium, most luxurious cabin class on an airline. It’s characterized by superior amenities, more spacious seating, enhanced services, and priority treatment for passengers.
What is a fiscal year, and why does your T&E budget depend on it? Learn how fiscal year timing shapes travel spend, reporting cycles, and year-end close.
What is a fixed expense and how does it differ from variable costs? Learn fixed expense types, budgeting impact, and how they affect financial planning.

Fixed-Rate Negotiations

Fixed-rate negotiation is a hotel rate that a company has negotiated with a fixed price and set of amenities that remain in place throughout the year, such as last room availability, cancellation, or check-in flexibility.

Flag Carrier

A flag carrier is an airline registered within a specific country or sovereign state, which may allow it certain preferential rights or privileges.
What is the flat tire rule and when can business travelers use it? Learn the unwritten airline courtesy that could save your next missed flight.
Flight delayed? Know what you're owed under EU261, UK261, and the new U.S. DOT rules, and whether that money belongs to you or your employer.
Flight disrupted? Know which events trigger compensation, what airlines owe your travelers, and how to manage disruption costs in T&E.
What is foreign currency exchange? Learn how FX fees, DCC charges, and exchange rate risk affect corporate travel budgets and T&E programs.
What are the nine freedoms of the air and how do they shape international flight routes? Learn which rights airlines need to carry passengers globally.
What are frequent flyer miles and how do they work? Learn how miles are earned, redeemed, and managed within corporate travel programs.
Your frequent flyer number unlocks miles, upgrades, and lounge access. Learn how to find, manage, and auto-apply yours across every airline.
What are fringe benefits and which ones are taxable? Learn the IRS rules, common types, exclusions, and how they connect to travel and expense programs.

Full-Service Hotel

A full-service hotel is an accommodation facility that provides a comprehensive range of amenities and services beyond the basic lodging found at a limited-service hotel. These may include on-site restaurants, room service, concierge assistance, meeting and event spaces, fitness centers, and other additional features to cater to the various needs and preferences of guests.

G

What are gate lice and why does this boarding behavior cost airlines millions in delays? Learn the causes, corporate travel impact, and how to avoid it.
What is a GDS and how does it power corporate travel? Discover how the Global Distribution System connects travel buyers and suppliers.
What is a general ledger and how does it connect to expense management? Learn GL structure, account types, and why T&E integration matters for financial close.
What is geo-fencing and how does it protect business travelers? Discover how virtual boundaries strengthen duty of care and expense controls.
What is a ghost booking and how does it lead to expense fraud? Learn the three types, detection methods, and prevention strategies.
Global Entry is a U.S. Customs and Border Protection service that allows pre-approved, low-risk travelers to receive expedited clearance through automatic kiosks at select airports upon arrival into the United States.
What is guest travel and when should finance teams set a companion policy? Learn the tax rules, insurance gaps, and expense separation best practices.

H

What is hand luggage and how does it differ from a carry-on? Explore size rules, weight limits, and tips for business travelers.
What is hidden city ticketing and why do airlines prohibit it? Learn the legal status, corporate travel risks, and policy controls.
What does HK mean in a GDS booking and why does it matter for corporate travel? Learn how this status code affects ticketing deadlines and trip management.
What is a hotel brand and how do brand portfolios affect corporate travel rates? Learn how tier segmentation shapes travel policy and negotiation strategy.
What is a hotel chain and why should travel managers care? Learn the hierarchy, rate negotiation tactics, and preferred program basics.
What is a hotel folio and why do business travelers need one? Learn folio types, IRS receipt rules, and how to handle split billing.
What is a hotel program and how do companies negotiate corporate rates? Explore the RFP process, rate structures, and compliance strategies.
What is a hub airport and how does the hub-and-spoke model work? Learn why airlines concentrate flights through central hubs and what it means for business travel.
What is hub-and-spoke routing and how does it shape business travel itineraries? Explore the trade-offs between hub connections and nonstop flights.
What is a hush trip and why does it worry corporate travel managers? Learn the compliance risks, tax implications, and policy solutions.

I

What is in-flight entertainment (IFE) and why does it matter for business travelers? Explore IFE types, Wi-Fi, and how Navan maximizes every trip.

Incidental Expenses

Incidental expenses refer to miscellaneous costs or small, unforeseen expenditures that arise in the course of travel (e.g., tips for service, ground transportation costs, or fees for minor services).

Independent Hotels

Independent hotels are properties that are not affiliated with a chain or brand. Although these hotels may have certain agreements with chains, they retain their name and complete autonomy over property management.
What are indirect costs and why do they matter for budgeting? Learn the types, allocation methods, and how they differ from direct costs.

Intercontinental Travel

Intercontinental travel is travel between two continents, such as travel from the U.S. to Europe.

Interline

Interline is a very basic form of agreement between airlines where check-ins and baggage handling can be done together, so a traveler only needs to check in once and does not have to worry about moving checked bags despite changing carriers during a trip.

International Air Transport Association (IATA)

The International Air Transport Association (IATA) is a trade association for many of the world’s airlines.

International Airline Travel Agent Network (IATAN)

The International Airline Travel Agent Network (IATAN) is the only widely accepted form of legitimate travel agent identification.
What is an international driver's license, and when do business travelers need one? Learn IDP requirements, costs, and corporate travel compliance tips.

Intracontinental Travel

Intracontinental travel is travel within a continent, such as travel between the U.S. and Canada.
Invoice matching is the process of comparing and verifying the details of a vendor's invoice with corresponding purchase orders and received goods/services documents to ensure accuracy and compliance before processing payment.

Irregular Operations (IROP)

Irregular operations are disruptions or deviations from normal flight schedules and operations, often caused by factors such as weather events, technical issues, or other unexpected events.
What is ISO 20022 and how does it affect corporate payments? Learn the migration timeline, structured data benefits, and what finance teams need.
What is an itinerary, and how does a business travel plan differ from a booking confirmation? Components, best practices, and duty of care.

J

What is jet lag and why does it cost companies millions in lost productivity? Discover how circadian disruption affects business travel performance.
What is a journal entry in accounting and why does it matter? Learn the components, types, and how automated entries speed up financial close.

K

Known Traveler Number (KTN)

A Known Traveler Number (KTN) is a unique identification code issued by trusted traveler programs, such as TSA PreCheck, which enables individuals to undergo expedited airport security screening processes.

L

Land Arrangements

Land arrangements are all non-flight reservations in a travel itinerary, (e.g., car rental, hotel, and excursions).

Last Room Availability (LRA)

Last room availability (LRA) is a hotel industry practice that ensures a hotel will provide a travel agency or booking platform with the last available room in its inventory, even during peak periods or high demand, allowing for maximum booking flexibility.
What is a layover and how long should one be? Learn minimum connection times, domestic vs. international rules, and how to avoid missed connections.

Leakage

Leakage occurs when employees book business travel outside the preferred channels; a lot of leakage in a managed travel program can lead to missed cost-savings opportunities and weaken duty of care capabilities.
What is lease accounting and how do ASC 842 and IFRS 16 apply? Learn lease classification, compliance best practices, and T&E impacts.

Leisure Travel

Leisure travel refers to the activity of individuals or groups taking trips for relaxation, enjoyment, and recreation, typically for non-business purposes.
What is Level 3 data and how does it lower corporate card processing costs? Learn the required fields, Visa CEDP changes, and savings potential.
What is liability in business finance? Learn how current, non-current, and accrued T&E obligations affect your balance sheet and year-end close.

Limited-Service Hotel

A limited-service hotel offers a more streamlined range of amenities and services compared to full-service hotels. These hotels typically provide essential facilities (e.g., rooms, basic housekeeping, and possibly continental breakfast), but may lack features like on-site restaurants, extensive meeting spaces, or other additional services commonly found in full-service hotels.

What is liquidation in travel and expense management, and how does it affect reimbursements and financial close? The T&E process explained.

Lodge Card

A lodge card is a virtual or physical payment card lodged with a travel management provider. Typically it is issued for an entire company or entire cost center to ensure all pre-trip expenses are charged to one card number.

Loss Damage Waiver (LDW)

Loss damage waiver is supplemental car rental insurance that covers theft, vandalism, and accident damage.

Lowest Logical Fare (LLF)

The lowest logical fare (LLF) is the least expensive, nonrefundable fare with the minimum number of stops at the time of booking.

Loyalty Program

A loyalty program is a marketing strategy that rewards customers for their repeat business and brand loyalty by offering incentives, such as discounts, points, air miles, or exclusive perks, encouraging ongoing engagement and repeat purchases.

M

Machine Learning

Machine learning refers to the application of artificial intelligence techniques that enable systems to automatically analyze and derive insights from large datasets.

Managed Travel

Managed travel refers to an organization’s strategic and coordinated approach to overseeing and controlling their employees’ business-related travel activities. It encompasses aspects such as travel policies, expense management, supplier negotiations, and the use of travel management companies or tools to optimize travel-related processes and costs.
What is a mattress run and when does it make financial sense? Learn the ROI math, risks, and smarter alternatives for frequent travelers.
What is a merchant category code and why do finance teams track MCCs? Explore code ranges, tax reporting uses, and corporate card spend controls.

Metal

In aviation slang, the term “metal” refers to the airplane of the operating carrier of a flight. For example, if you book a flight with one airline, but the flight is operated by a different airline, the operating carrier’s aircraft is often colloquially referred to as “metal.” This distinction is particularly relevant in codeshare agreements or when airlines collaborate, allowing one airline to operate flights on behalf of another.
What does MICE mean in business travel and why do companies spend over $1 trillion annually on group events? Explore the four segments and best practices.
What is mileage reimbursement and how do companies set the right rate? Learn IRS rules, tax treatment, and how to automate mileage tracking.
What is a mileage run and when does it still pay off? Learn how revenue-based loyalty programs changed the strategy and when it makes sense.

Minimum Connect Time

The minimum connect time is the shortest time required to successfully transfer to a connecting flight at an airport.
What is minimum connection time, and who sets it? Discover how MCT affects corporate itineraries and what to do when delays tighten your layover window.
What is mobile expense reporting and how does it reduce reimbursement time? Learn how smartphone-based expense capture eliminates paper receipts and speeds up approvals.

Multi-Carrier Support

Multi-carrier support refers to a system or service’s capability to accommodate and interact with multiple carriers or transportation providers. In the context of travel management, it refers to the ability to book your departure and return flights with any airline combination.

Multi-City Flight

A multi-city flight is a single travel booking that combines flights between several cities into one itinerary.

Multi-Fare Class Support

Multi-fare class support is the ability to mix and match cabin fares on a single ticket (e.g., book basic economy class on the flight out and business class on the way home).

N

Net Fare, Net Rate

A net fare or net rate refers to the base price or cost of a travel service, such as a flight, hotel room, or tour, excluding additional fees, commissions, or markups.

Net Promoter Score (NPS)

Net promoter score (NPS) is a metric used to measure customer loyalty and satisfaction based on the likelihood of customers recommending a company’s products or services to others. NPS is a strong indicator of the health of a corporate travel program, along with adoption and traveler satisfaction.

Next Generation Storefront (NGS)

The Next Generation Storefront (NGS) is a set of data standards that enable distribution channels to better present, sort, and find the airline products and services travelers are looking for.
What is a no-show fee and when do airlines and hotels charge one? Learn the rules, how fees accumulate in corporate travel, and how to avoid them.

Non-Last Room Availability

As opposed to last room availability, non-last room availability means hotels do not need to guarantee a company’s negotiated rate can be used for their last available room. That means a traveler may see that a room is available at a hotel but may not find an associated corporate negotiated rate at that hotel.

Non-Rev

A non-rev (revenue) passenger is an airline employee (i.e., deadhead), or their friends or family, traveling on a deeply discounted airline ticket. These flights are generally on a standby basis only and for personal needs.
What is a non-stop flight and how does it differ from a direct flight? Learn the definitions, cost tradeoffs, and why nonstop routes matter for business travel.

Non-Transferable

A non-transferable ticket can only be used by the person who was originally scheduled to fly.

O

O&D

In the travel and aviation industry, O&D typically refers to the specific origin and destination points of a journey, representing the cities or locations where a traveler begins their trip and where they ultimately intend to go.
What is an OBT and when should your organization adopt one? Learn how online booking tools enforce policy and reduce travel costs.

Occupancy Rate

The occupancy rate is a metric that indicates the percentage of available rooms or units that are currently being used or rented out.
What is off-peak travel and how do companies use it to cut costs? Explore booking windows, pricing patterns, and policy strategies that matter.

Offline Connection

An offline connection refers to a travel itinerary where passengers have to change planes at an intermediary airport, requiring a separate ticket for each leg of the journey and often necessitating self-transfer and recheck of luggage.

Offsite

An offsite is an occasion when a group of employees gather together away from their office, especially for team-building or business purposes.

Online Booking Tool (OBT)

An online booking tool (OBT) is a corporate-approved software tool that lets organizations book, manage, and monitor their business trip itineraries.

Online Travel Agency (OTA)

An online travel agency (OTA) is a travel website that helps travelers book flights, hotel rooms, ground transportation, or other travel-related products and services.
What is an operating expense and how does it differ from CapEx? Explore OpEx types, the OER formula, and IRS deduction rules.

Optical Character Recognition (OCR)

Optical character recognition (OCR) technology extracts and repurposes data from camera images, scanned documents, or image-only files such as PDFs. The software is capable of singling out letters and numbers on images, such as a photo of a receipt, and then extracting this data for processes like reconciliation.
What is an OTA and why do corporate travel programs need more than one? Learn how online travel agencies work and where they fit in managed travel.
What counts as an out-of-pocket expense and when are employees entitled to reimbursement? Learn the rules, tax treatment, and how to avoid common gaps.
What is overbooking and what happens when your flight is oversold? Learn DOT compensation rules, traveler rights, and corporate policy tips.
What is an overhead bin and what are the size limits? Learn carry-on rules, boarding strategies, and how bin access varies by fare class.
What counts as overweight baggage and what are the fees? Learn weight limits by cabin class, typical surcharges, and how business travelers avoid unexpected costs.

P

What is a P-card and when should finance teams use one instead of a purchase order? Learn how procurement cards cut transaction costs and control spending.

Passenger Facility Charge (PFC)

A passenger facility charge (PFC) is a fee imposed by airports to help fund infrastructure projects and improvements. Airlines collect this fee from passengers and then remit it to the airport.
What is per diem and how do GSA rates actually work? The gap between official allowances and what business travel really costs.

Personal Effects Coverage

Personal effects coverage is additional car rental insurance covering the loss of personal property from the rented vehicle.

Personal Expense

In the context of business expenses, a personal expense refers to a cost incurred by an individual for non-business purposes, which is typically not eligible for reimbursement.

Personal Travel

Personal travel refers to journeys undertaken by individuals for non-business or non-professional reasons, typically for leisure, vacation, or personal obligations.
What is petty cash and when should your business use one? Learn the imprest system, IRS documentation rules, fraud prevention, and modern alternatives.

Phonetic Alphabet

The phonetic alphabet, also known as a spelling alphabet or radio alphabet, is a set of standardized code words used to represent letters of the alphabet in oral communication (e.g., Alpha, Bravo, and Charlie). It is designed to minimize confusion and errors when spelling out words, names, or codes, especially in situations where the clarity of verbal communication is crucial, such as over the phone or in radio communication.

Physical Corporate Card

A physical corporate card is a plastic card issued to employees to spend on work-related purchases. The card is tangible and has a unique 16-digit number, expiration date, and Card Verification Code (CVC).

Pitch

Pitch is the legroom between airline seats as measured from the back of one airplane seat to the seat in front of it.

Point-to-Point

Point-to-point in air travel refers to a flight system where an airline operates direct routes between specific city pairs without requiring passengers to connect through a hub. It provides more direct and nonstop options for travelers.

Points

Points in the context of the travel industry refer to a type of loyalty or rewards program currency. These points are accumulated by customers through various activities, primarily through purchasing flights, hotel stays, and car rentals. Points can typically be redeemed for benefits such as free or discounted travel, upgrades, and other travel-related perks.

Policy Compliance

Policy compliance refers to the adherence of individuals or entities to established rules, regulations, and guidelines, ensuring that they follow prescribed standards and procedures.

Preferred Supplier

A preferred supplier is a specific supplier or service provider with whom a travel agency or travel management company has established a preferred relationship, often based on negotiated terms, pricing, and other mutually beneficial arrangements.
What is a prepaid expense and why is it classified as an asset? Learn the accounting treatment, journal entries, and common examples in business travel.
What is Priority Pass? Discover how this global lounge network fits corporate travel programs, expense policy, and employee perks.
What is a pro forma invoice and when should your finance team require one? Explore how it differs from commercial invoices and customs rules.

Procurement

Procurement is a broad term to describe a range of activities involved in sourcing, obtaining, and purchasing goods, in most cases for business-related purposes.

Pseudo City Code (PCC)

Pseudo city code (PCC) is a unique identifier assigned by a global distribution system (GDS) to travel agencies or other entities that use the GDS to make reservations and bookings for travel services such as flights, hotels, and car rentals. The PCC allows the GDS to track and manage transactions associated with a specific agency or user.

Published Fare

A published fare refers to the standard, publicly available price for a flight ticket set by an airline and typically listed in their official fare tariff. This is the base price before any discounts, promotions, or additional fees are applied.
What is a purchase order and when should your team require one? Explore PO types, three-way matching, and procurement best practices.

R

What is real-time reporting in expense management? Learn how live spend data replaces month-end scrambles and improves budget forecasting accuracy.
What is receipt management and why does it matter for expense compliance? Learn the IRS rules, capture methods, and best practices for business receipts.
What is expense reconciliation and why does it consume 80% of finance team time? The manual matching problem, and how to fix it.

Record Locator

In airline reservation systems, a record locator is an alphanumeric code or reference number used to access a specific passenger’s booking or reservation.
What is a recurring expense, and how should businesses track them? Learn the types, examples, and strategies that keep recurring costs under control.

Regional Hotel Chain

This is a smaller form of hotel chain with multiple properties, and potentially multiple hotel brands, within its holding. In addition to operating on a much smaller scale, these hotels also operate in a specific region.
What counts as a reimbursable expense and what doesn't? Learn IRS accountable plan rules, common categories, and documentation requirements.
What is repatriation and when do employers need a return-home plan? Learn the two types, legal obligations, and crisis response essentials.
What is RevPAR and why do hotel revenue managers obsess over it? Learn the formula, benchmarks, and what it means for corporate travel negotiations.

Round-the-World (RTW) Tickets

Round-the-world (RTW) tickets are flight packages that let travelers visit several destinations “around the world” for one price. These tickets are offered by airline alliances (e.g., oneworld, SkyTeam, Star Alliance, etc.) and all flights must be booked on airlines in the alliance.

S

What is SAF and how can corporate travel programs use it for Scope 3 reporting? Explore production pathways, SAF certificates, and regulatory mandates.
What is a same-day change and how do airline fees and elite status affect business travelers' options? Learn the rules before your next trip.
What is seat width, and why do economy seats vary by over 2 inches? Decode seat dimensions by aircraft type and cabin class before you book.
What is a security checkpoint and how can business travelers pass through faster? Learn how TSA PreCheck, Global Entry, and travel policies reduce delays.

Segment

A segment is a part or leg of an air itinerary, including one takeoff and one landing.

Shoulder Season

Shoulder season is the period between busy and quiet seasons in which prices are typically at a midpoint.

SITI, SITO, SOTI, and SOTO Tickets

SITI (Sold Inside, Ticketed Inside), SITO (Sold Inside, Ticketed Outside), SOTI (Sold Outside, Ticketed Inside), and SOTO (Sold Outside, Ticketed Outside) tickets represent different scenarios in airline ticket sales where “Sold Inside” or “Sold Outside” denote transactions within or outside the country where travel begins, while “Ticketed Inside” or “Ticketed Outside” indicates whether the ticket was issued within or outside of the country.
What is a skycap and why do seasoned business travelers seek them out? Learn how curbside check-in works, what to tip, and when it saves real time.

Smart Card

A smart card is a physical card embedded with a computer chip that hosts intelligent automation functions and security controls. Unlike a typical physical card with a magnetic strip, a smart card can perform multiple functions, since it encrypts additional information to interact with various payment terminals.
What is spend analysis and how does it reduce procurement costs? Learn the process, data requirements, and how travel programs use spend visibility to negotiate better.

Spend Control

Spend control incorporates the processes of enforcing policies, whether manually or through technologies, to monitor and manage purchases made within a company.
What is a spend cube and how do procurement teams use one to find hidden savings? Learn the three dimensions, build process, and T&E applications.
What is spend forecasting and when should finance teams use it? Compare methods, key inputs, and best practices for accurate T&E budgets.
What is spend management and why does it matter for controlling costs? Learn the process, key metrics, and how leading companies cut procurement waste.

Spend Management Software, Spend Management System, Spend Management Solution

Spend management software is a comprehensive digital solution that helps organizations track, control, and optimize their expenditures by providing tools for budgeting, expense tracking, and analysis of financial transactions.

Split Ticketing

Split ticketing happens when two separate tickets are purchased to build an itinerary, often to obtain a lower price. Travelers do this at their own risk, because if a connecting flight is missed, both airlines may elect not to rebook the traveler unless they purchase a new ticket.
What is a status match and when should business travelers request one? Compare match types and learn when timing makes or breaks the outcome.

Stopover Paid by Carrier (STPC)

A stopover paid by carrier is a program in which an airline might offer a free stopover to encourage travelers to use a less optimal connecting flight. Typically, the airline covers prearranged hotel, ground transportation, and meals during a stopover.
What is a subscription based expense and how should it be tracked? Learn the accounting treatment, common categories, and management best practices.

Sustainability

Sustainability is the practice of meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. It focuses on environmental stewardship, social responsibility, and economic viability.
What is an SWU and when should frequent travelers use one? Learn how upgrade certificates turn loyalty status into premium cabin access.

T

What is tax compliance in T&E, and what happens when reimbursements fail IRS accountable plan rules? Learn the controls that keep spend audit-ready.

Through Passenger

A through passenger is a passenger who remains on the plane at a connecting stop on the way to their final destination.
What is throwaway ticketing and why do airlines ban it? Learn the risks for business travelers and how travel policies address fare manipulation.
What is a ticket deposit receipt and how do companies track unused airline credits? Learn TDR types, expiration rules, and recovery strategies.

Ticketing Agreement

A ticketing agreement is a formal arrangement between airlines or airline alliances that allows for the sale and issuance of tickets for connecting flights operated by different carriers.

Transportation Security Administration (TSA)

The Transportation Security Administration (TSA) is a U.S. government agency responsible for ensuring the security of transportation systems, primarily focusing on aviation, through the development and implementation of screening and security measures.
What is T&E (travel and expense), and how do finance teams manage it effectively? Learn the components, policy best practices, and automation benefits.
What is a travel advisory and how do the 4 levels work? Learn how advisories affect corporate travel policy, duty of care, and booking decisions.

Travel Agency

A travel agency is a business that provides services and assistance related to travel, including booking accommodations, flights, and other travel-related activities, to individuals or groups.
What is a travel agent, and when should companies use one? Discover how agents compare to TMCs and when your travel program may need more.
What is travel booking for business, and how do managed tools cut costs and improve compliance? Explore the processes that keep corporate trips on track.
What is travel cancellation insurance and what does it cover? Learn the difference between standard and CFAR policies, covered reasons, and corporate best practices.
What is travel expense management, and why does it matter? Learn how T&E workflows connect booking, expense capture, and reporting to control costs.

Travel Expenses

Travel expenses are goods or services employees incur while traveling for business. Though many expenses may occur during a trip, it is up to the organization to decide what is considered an in-policy business travel expense vs. a personal travel expense.

What does travel insurance cover for business travelers, and when does corporate coverage fall short? Learn which gaps put trips and budgets at risk.
What is a travel management company and when do you need one? Learn TMC services, pricing models, and how modern platforms differ from legacy providers.

Travel Management Software, Travel Management System, Travel Management Solution

Travel management software or travel management system is a specialized digital solution designed to assist organizations in efficiently managing and optimizing their corporate travel processes — including booking, expense tracking, itinerary management, and reporting — to enhance control, compliance, and cost-effectiveness in business travel.

Travel Policy

A travel policy is a set of guidelines and rules established by an organization to govern and regulate employee business travel. It outlines permissible expenses, booking procedures, and other standards to ensure consistency and compliance with the company’s objectives.
What is travel policy compliance and why do programs miss it? Learn compliance benchmarks, enforcement methods, and how top programs reach 90%+.

Travel Program

A travel program encompasses the policies, procedures, and guidelines established by organizations to regulate and optimize travel-related activities. A managed travel program involves centralized control and coordination, while an unmanaged travel program may be less organized and less satisfactory.

Travel Risk Management

Travel risk management involves the systematic identification, assessment, and mitigation of potential risks and hazards associated with business travel, with the aim of ensuring the safety and well-being of travelers while maintaining business continuity.
What are travel services, and how do companies use them to control costs and support travelers? Learn the key components of a corporate travel program.
What is trip interruption insurance and when does it activate? Learn what's covered, how it differs from cancellation insurance, and corporate policy considerations.
What is TRM and how does ISO 31030 shape corporate duty of care? Explore the four pillars, risk categories, and modern program requirements.
What is a trusted traveler program and which one should business travelers choose? Compare Global Entry, TSA PreCheck, NEXUS, and SENTRI.
What is TSA PreCheck and how do you get it? Learn application steps, costs, benefits for business travelers, and how it compares to Global Entry.

U

U.S. Customs and Border Protection (CBP)

U.S. Customs and Border Protection (CBP) is a federal law enforcement agency within the Department of Homeland Security. It’s responsible for safeguarding America’s borders by enforcing customs, immigration, and trade laws, as well as facilitating legitimate travel and commerce.

Ultra-Low-Cost Carrier (ULCC)

An ultra-low-cost carrier (ULCC) is an airline that offers rock-bottom, no-frill fares. Seat selection, baggage, or drinks on the flight may be charged as an additional fee.
What is an unaccompanied minor and when do airlines require supervised travel? Learn the age rules, fees, and what business travelers need to know.

Universal Air Travel Plan (UATP)

The Universal Air Travel Plan (UATP) is a global payment system specifically designed for the airline industry that allows businesses to issue and manage charge cards for corporate travel expenses and facilitates the centralized payment of airfare and related services. It is also accepted by some hotels, rail providers, and other suppliers.

Unmanaged Travel

Unmanaged travel refers to a situation in which individuals within an organization make independent and decentralized decisions regarding their business-related travel, without a centralized or coordinated approach from the organization. Individuals will often book through consumer websites, such as online booking tools (OBTs), or directly with suppliers. In unmanaged travel, there may be limited control over travel expenses, adherence to travel policies, and optimization of travel-related processes.

Unrestricted Fare

An unrestricted fare refers to a ticket with flexible terms that allows passengers to make changes or cancel flights without incurring significant fees or penalties, providing greater flexibility and freedom in travel plans.

Unused Ticket

An unused ticket is an airline-specific credit generated from canceling a non-refundable flight. These funds are not lost and can be applied toward a future flight on the same carrier.

V

Value-Added Tax (VAT)

Value-added tax (VAT) is a consumption tax levied at each stage of the production and distribution chain, ultimately borne by the end consumer and calculated as the difference between the value of goods and services sold and the cost of materials and services used in their production.
What is a variable expense and how does it affect T&E budgets? Learn types, examples, and how real-time tracking keeps variable costs under control.
What is VAT reclaim and how can your company recover tax on business travel? Learn EU directive rules, eligible expenses, and filing deadlines.
What is vendor management in corporate travel and how does it reduce costs? Learn supplier strategies, negotiation levers, and program structures.

Virtual Card Number (VCN)

A virtual card number (VCN) is a highly secure, single-use virtual credit card number used to minimize the risk of fraud.

Virtual Corporate Card

A virtual corporate card is a unique 16-digit corporate card number generated digitally. That card number can be used for online checkouts and downloaded to a mobile wallet for in-person purchases where virtual cards are accepted.
What is the Visa Waiver Program and which 42 countries qualify? Explore ESTA requirements, business travel rules, and compliance risks.

W

What is a travel waitlist and how does it affect your upgrade chances? Learn how airlines and hotels prioritize waitlisted business travelers.
What is a window seat, and when should business travelers choose one? Discover seat selection strategy, comfort trade-offs, and how Navan helps.

Workcation

Workcation is a portmanteau of work and vacation that describes the act of employees conducting business from locations other than their usual workplace.
What is working capital and how does T&E spending affect it? Learn the formula, ratio benchmarks, and cash flow management strategies.