Cash basis accounting is a method of recording financial transactions only when cash is received or paid, recognizing revenue at the time of collection and expenses at the time of payment, rather than when they are earned or incurred.
Cash basis accounting records revenue when cash is received and expenses when cash is paid. This straightforward method provides a clear picture of actual cash flow but does not account for money owed to or by the business, which can misrepresent financial performance over time.
The IRS allows businesses with average annual gross receipts of $30 million or less (over the prior three-year period) to use cash basis accounting. Businesses exceeding this threshold must generally use the accrual method [1].
Cash basis is simpler to maintain than accrual accounting because it does not require tracking accounts payable, accounts receivable, or adjusting entries for prepaid and accrued items.
Navan's expense management system works with both cash and accrual accounting methods, automatically tagging transaction dates and payment dates so finance teams can generate reports that align with their chosen method.
Most startups and small businesses begin with cash basis accounting and transition to accrual when they reach the IRS revenue threshold, secure external financing, or need GAAP-compliant financial statements for investors.
What is Cash Basis Accounting?
Cash basis accounting records financial transactions only when cash changes hands. Revenue is recognized when a payment is received, not when a service is performed or a product is delivered. Expenses are recognized when a payment is made, not when a bill is received or an obligation is incurred.
This creates a direct link between the income statement and the bank account. If the business received $50,000 in payments and made $30,000 in payments during a month, the income statement shows $20,000 in net income, regardless of how much work was performed, how many invoices were issued, or how many bills remain unpaid.
The simplicity of cash basis accounting makes it popular with small businesses, freelancers, and sole proprietors who primarily need to track actual cash flow rather than produce financial statements for external stakeholders.
Cash Basis vs. Accrual Accounting
The fundamental difference between the two methods is timing: when revenue and expenses are recognized relative to the underlying economic activity.
The choice between methods significantly affects how business travel expenses appear in financial reports. Under cash basis, a December flight paid in December but taken in January shows as a December expense. Under accrual, it shows as a January expense (when the travel benefit occurs) or a prepaid expense on the December balance sheet.
Who Can Use Cash Basis Accounting?
The IRS sets specific eligibility requirements for cash basis accounting [1].
Eligible businesses:
Sole proprietorships, partnerships, and S corporations with average annual gross receipts of $30 million or less over the prior three tax years.
Businesses that do not maintain inventory as a material income-producing factor (though the $30 million threshold provides a safe harbor even for inventory-based businesses under the Tax Cuts and Jobs Act of 2017).
Qualified personal service corporations (accounting, law, engineering, consulting, health, actuarial science, performing arts).
Businesses that must use accrual:
C corporations with average annual gross receipts exceeding $30 million.
Tax shelters (regardless of size).
Certain farming corporations and partnerships with C corporation partners.
Switching methods: Businesses can change their accounting method by filing IRS Form 3115 (Application for Change in Accounting Method). The transition requires a Section 481(a) adjustment to prevent income from being duplicated or omitted during the switch.
How Does Cash Basis Accounting Affect Expense Management?
Cash basis accounting creates specific considerations for managing business expenses and expense reports.
Travel expenses are recognized when paid, not when traveled. A business trip in March that is reimbursed in April appears as an April expense under cash basis. This can create timing mismatches between the period when travel activity occurs and when the cost impacts the income statement.
No accrued expenses. Under cash basis, there are no accrued liabilities for unpaid bills. If a hotel invoice arrives in December but is paid in January, it is a January expense. This simplifies month-end close but can understate costs in months when bills are received but not yet paid.
Simplified accounting. Employee reimbursements are recognized as expenses when the reimbursement check is issued or the ACH transfer clears, not when the employee submits the expense report. This makes expense tracking straightforward but can create a disconnect between travel activity and financial reporting.
Year-end timing sensitivity. Businesses on cash basis may accelerate or defer payments around year-end to manage taxable income. Paying outstanding vendor invoices in December reduces current-year income. Deferring payments to January pushes expenses into the next tax year.
When Should a Business Switch to Accrual?
Several triggers signal that a business should consider transitioning from cash to accrual accounting.
Approaching the $30 million threshold. Once average gross receipts approach $30 million, the transition to accrual becomes mandatory. Planning the switch before it is required allows time to implement the necessary accounting infrastructure.
Seeking external financing. Lenders and investors typically require GAAP-compliant financial statements, which mandate accrual accounting. Presenting cash basis financials to a venture capital firm or bank can delay or derail fundraising.
Revenue timing creates distortion. If the business has significant accounts receivable (services delivered but not yet paid), cash basis dramatically understates revenue. If the business has significant accounts payable (services received but not yet paid), cash basis understates expenses.
Growing complexity. As transaction volume, employee count, and vendor relationships increase, the simplicity advantage of cash basis erodes while its limitations become more pronounced.
Accounts Payable: Money owed to vendors, which is tracked as a liability under accrual accounting but not recognized until paid under cash basis.
Prepaid Expense: Advance payments for future services, which are amortized under accrual but expensed immediately when paid under cash basis.
Expense Forecasting: Predicting future costs, which is more challenging under cash basis because the timing of payments does not align with the timing of business activity.
Frequently Asked Questions About Cash Basis Accounting
Cash basis accounting records revenue when cash is received and expenses when cash is paid, regardless of when the goods or services are delivered or received. It provides a direct view of cash flow but does not track accounts receivable, accounts payable, or prepaid items.
Cash basis recognizes transactions when cash changes hands. Accrual basis recognizes revenue when earned and expenses when incurred, regardless of payment timing. Accrual provides a more accurate picture of financial performance over time but requires more complex record-keeping.
The IRS allows businesses with average annual gross receipts of $30 million or less over the prior three tax years to use cash basis. Qualified personal service corporations in fields like accounting, law, and consulting can also use cash basis. C corporations exceeding the threshold and tax shelters must use accrual.
Navan tags each transaction with both the transaction date and the payment date, allowing finance teams to generate reports aligned with either cash or accrual accounting. This dual-date approach ensures expense data integrates correctly with the company's accounting system regardless of the chosen method.
To switch accounting methods, file IRS Form 3115 (Application for Change in Accounting Method). The transition requires a Section 481(a) adjustment to account for items that would be duplicated or omitted during the change, such as accounts receivable and payable that exist under accrual but not under cash basis.
Yes. Under cash basis, employee expense reimbursements are recognized when the reimbursement payment clears, not when the employee submits the expense report or when the original purchase occurred. This can create timing differences between travel activity and financial reporting.
Accrual accounting is a method of recording financial transactions when they occur, regardless of when the cash transactions happen, ensuring that revenue and expenses are matched in the period they arise.
