How to Make an Accrual to Cash Adjustment on Your Tax Return

An accrual to cash adjustment on your tax return is made through a one-time Section 481(a) computation that captures the cumulative difference between what you reported under accrual and what you would have reported had you always used cash. You calculate the adjustment as of the first day of the year of change, report it on IRS Form 3115, and flow the number to a specific line on your business return. The adjustment prevents income or expenses from being counted twice or skipped entirely as you move between the two methods.1Office of the Law Revision Counsel. 26 USC 481 – Adjustments Required by Changes in Method of Accounting

Who Can Switch to Cash

Most businesses that want to move from accrual to cash qualify under the gross receipts test in Internal Revenue Code Section 448. For tax years beginning in 2026, a business with average annual gross receipts of $32 million or less over the prior three years can generally use the cash method, including for inventory treated as non-incidental materials and supplies under Section 471.2Internal Revenue Service. Rev. Proc. 2025-323Office of the Law Revision Counsel. 26 USC 471 – General Rule for Inventories

The $32 million figure applies to the whole controlled or affiliated-service group, not to each entity in isolation. Businesses treated as a single employer must combine their gross receipts when measuring against the threshold, so a group of related companies each earning $15 million could collectively disqualify itself.4Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting

Two groups fall outside the usual gross receipts analysis. Qualified personal service corporations in fields like health, law, engineering, accounting, and consulting can use the cash method regardless of revenue, provided substantially all stock is held by employees performing those services. Farming operations that qualify follow a separate automatic-change procedure using Designated Change Number 128 on Form 3115 rather than the general small-business DCN.4Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting5Internal Revenue Service. Instructions for Form 3115

How to Calculate the Section 481(a) Adjustment

The 481(a) adjustment is a single number, measured as of the first day of the year of change. It captures every item of income and expense that would otherwise be duplicated or omitted because the switch is happening mid-stream.1Office of the Law Revision Counsel. 26 USC 481 – Adjustments Required by Changes in Method of Accounting Four balance-sheet accounts do most of the work:

  • Accounts receivable. Income already recognized under accrual but not yet collected in cash. This is usually the largest item for a service business.
  • Accounts payable. Expenses already deducted under accrual but not yet paid. These offset receivables.
  • Deferred revenue. Cash already received but not yet earned under accrual. Under cash, this would have been income when the money arrived.
  • Prepaid expenses. Cash already paid for goods or services not yet used. Under accrual these sit as assets; under cash they would have been deducted when paid.

The sign of the result depends entirely on your balance sheet at the transition date. A positive adjustment increases taxable income, meaning the switch surfaces previously unrecognized income on a net basis. A negative adjustment decreases taxable income, which is common for businesses with large receivables relative to payables and deferred revenue.

Consider a business with $150,000 in accounts receivable, $40,000 in accounts payable, $20,000 in deferred revenue, and $10,000 in prepaid expenses at the transition date. Each item contributes separately to the computation, and the netted figure is what you report on Form 3115 and carry to your return.

Filing Form 3115

You cannot change methods just by starting to report differently. Section 446 requires IRS consent, and Form 3115 is how you get it.6Office of the Law Revision Counsel. 26 U.S. Code 446 – General Rule for Methods of Accounting A small business switching to the overall cash method under the gross receipts test typically qualifies for automatic consent using Designated Change Number 233. Automatic consent means no private letter ruling and no user fee.5Internal Revenue Service. Instructions for Form 3115

Two copies have to go out. Attach the original Form 3115 to your timely filed federal income tax return for the year of change, and send a signed duplicate to the IRS National Office no later than the date you file the return. Include a statement showing how you calculated the 481(a) adjustment.5Internal Revenue Service. Instructions for Form 3115

Where the Adjustment Appears on Your Return

Form 3115 produces the number; your main business return is where it gets taxed. The line depends on your entity type:

How the Adjustment Is Recognized Over Time

The timing rules in Revenue Procedure 2015-13 treat positive and negative adjustments differently.11Internal Revenue Service. Rev. Proc. 2015-13

A positive adjustment is spread ratably over four tax years, starting with the year of change. One-quarter of the total is picked up each year. A negative adjustment, by contrast, is recognized entirely in the year of change, so the taxpayer gets the full benefit right away.

If the net positive adjustment is under $50,000, you can elect to take the whole amount in the year of change instead of spreading it. The election is made on Form 3115. For smaller businesses this cuts out the multi-year tracking.11Internal Revenue Service. Rev. Proc. 2015-13

Watch for acceleration. If you’re spreading a positive adjustment and then stop the trade or business the adjustment relates to, any remaining balance comes due immediately in the year of cessation. Selling, dissolving, or winding down the business all count.12Internal Revenue Service. 4.11.6 Changes in Accounting Methods Factor that in before closing out a business carrying a remaining 481(a) balance.

Why Not to Skip Form 3115

Changing your accounting method without filing Form 3115 does not just risk the change being disallowed. Section 446 explicitly provides that the absence of IRS consent does not reduce accuracy-related penalties under Section 6662 or fraud penalties under Section 6663. Your preparer can also face penalties under Section 6694 for helping implement an unauthorized change.6Office of the Law Revision Counsel. 26 U.S. Code 446 – General Rule for Methods of Accounting

Filing properly also brings audit protection. When the IRS grants a method change under the automatic consent procedures, it generally won’t challenge your use of the prior method for years before the year of change. The 481(a) adjustment is treated as the fix, and prior-year returns stay untouched. If your accounting method is already under examination when you file, that protection may not apply.5Internal Revenue Service. Instructions for Form 3115

Automatic consent carries no user fee, so there is no cost reason to skip it. An unauthorized change leaves every prior year exposed and forfeits the clean break that a timely Form 3115 provides.