Cash Basis Accounting

Cash basis accounting is a method that records revenue when cash is actually received and expenses when cash is actually paid, regardless of when the income was earned or the expense was incurred. It is simpler than accrual accounting but does not comply with U.S. Generally Accepted Accounting Principles (GAAP) or International Financial Reporting Standards (IFRS). Under IRS guidelines, businesses with average annual gross receipts of $26 million or less over the prior three years may use the cash method for federal income tax purposes, with the threshold indexed for inflation.

Think of cash basis accounting like balancing your personal checkbook: money exists when it hits your account and expenses exist when the check clears, not before.

The IRS Prohibits Several Business Types from Using Cash Basis

Even if a business falls below the gross receipts threshold, certain entity types cannot use the cash method for tax purposes. C corporations, partnerships with C corporation partners, and tax shelters are prohibited from using cash basis accounting regardless of size. This restriction exists because these structures have greater capacity to manipulate income recognition timing, and the accrual method provides more consistent matching of income and expenses.

The Cash Method Can Create Significant Tax Planning Opportunities

Cash basis taxpayers can defer taxable income by delaying invoicing until late December so that payment arrives in January, shifting the income to the following tax year. They can also accelerate deductions by prepaying expenses in December, pulling the deduction into the current year. This flexibility is one reason many small professional service businesses, such as medical practices, law firms, and consultants, prefer the cash method when eligible.

Credit Card Expenses Are an Exception to the Cash Rule

Under the cash basis method, a business expense charged to a credit card is recognized when the charge is made, not when the credit card bill is paid. The IRS treats the charge as the moment of payment because credit creates a legally enforceable obligation at that point. A cash basis taxpayer who charges a business expense on December 31 can deduct it in that tax year, even though the card statement will not be paid until January.

Sources:
https://www.irs.gov/businesses/small-businesses-self-employed/accounting-methods
https://www.accountingtools.com/articles/cash-basis-accounting.html
https://corporatefinanceinstitute.com/resources/accounting/cash-basis-accounting/