Reverse an accrual entry when a specific cash transaction will settle it early in the next period. Reversing accrual entries on the first day of the new period lets your bookkeeper post that incoming payment or receipt as a normal, single-line transaction instead of splitting it between last period’s liability and this period’s expense. The technique applies most cleanly to accrued wages, accrued interest, and accrued revenue where the cash event is known and imminent. Skipping the reversal doesn’t break your books, but it forces manual analysis on every payment that touches a prior-period accrual, and that’s where errors start.
Which Accruals to Reverse
The rule is narrow. Reverse an adjusting entry only if a specific, identifiable cash transaction will clear it in the next period. If no such transaction is coming, leave the entry alone.
Two categories typically qualify:
- Accrued expenses such as wages payable, interest payable, and utilities that were incurred but not yet billed, where the payment date is known or close.
- Accrued revenues where services have been performed or goods delivered, and the invoice will go out and be paid in the next period.
These share one trait: a routine cash event will naturally clear the temporary balance. Reversing the accrual gives that event a clean landing spot. Reversing entries are optional under Generally Accepted Accounting Principles, so no auditor will fault you for skipping them. Their value is operational: fewer split transactions, fewer errors, less bookkeeper detective work.
How a Reversal Actually Works
A reversing entry is the mirror image of the original adjustment. Every debit becomes a credit and every credit becomes a debit, for the same amounts, dated the first day of the new period before anything else posts.
Take a concrete case. Your company incurs $1,500 of interest during December, but the lender bills on a cycle that pays $2,000 on January 15, covering both December and January portions.
December 31 adjusting entry. Debit Interest Expense $1,500, credit Interest Payable $1,500. December’s income statement now shows the interest cost, and the balance sheet shows the liability.
January 1 reversing entry. Debit Interest Payable $1,500, credit Interest Expense $1,500. The liability disappears, and Interest Expense now carries a $1,500 credit balance. That looks strange in isolation, but it’s temporary and intentional.
January 15 cash payment. Debit Interest Expense $2,000, credit Cash $2,000. The bookkeeper records the payment as an ordinary expense. The $2,000 debit lands on top of the $1,500 credit from the reversal, leaving a net $500 debit in January’s Interest Expense, which is exactly what January actually earned.
Without the reversal, whoever posts the January 15 payment has to know that $1,500 of it was already recorded in December. They’d split it: $1,500 against Interest Payable, $500 to Interest Expense. That kind of analysis on every accrued transaction is fine once. Across dozens of accruals each month, especially when one person handled year-end and someone else handles the new period’s activity, it’s where mistakes accumulate.
Entries You Should Never Reverse
Adjustments that allocate costs over time or record estimates don’t have a matching cash transaction lined up. Reversing them would undo work the books need.
- Depreciation. The entry debits Depreciation Expense and credits Accumulated Depreciation, which builds over the asset’s life. No cash event will clear it.
- Amortization. Same logic, applied to intangibles like patents or goodwill. Cost is spread across periods, not settled by a single payment.
- Bad debt expense. The credit goes to Allowance for Doubtful Accounts, a provision based on judgment. There’s no incoming cash to reverse into.
If the adjusting entry rests on an estimate or a multi-period allocation rather than a pending transaction, it stays.
Prepaids and Deferred Revenue: It Depends
These trip up a lot of bookkeepers because the answer depends on how the original transaction was booked.
Say your company paid $12,000 upfront for a year of insurance and recorded it as a prepaid asset: debit Prepaid Insurance, credit Cash. The period-end entry moves the used portion into expense: debit Insurance Expense, credit Prepaid Insurance. That adjustment should not be reversed. There’s no future cash event to settle; you’re drawing down an asset you already paid for.
Now flip the setup. Suppose you recorded that same $12,000 payment directly as Insurance Expense and adjusted at period-end to pull the unused portion back into a prepaid asset. That adjustment can be reversed, because the next period’s normal expense recognition will pick up the allocation.
The same two-path logic applies to unearned revenue. If prepayments were recorded as a liability (Deferred Revenue) and adjusted to recognize what was earned, don’t reverse. If prepayments were booked as revenue and adjusted to defer the unearned portion, reversal is on the table. The question stays the same: does a routine transaction in the next period need a clean slate to land correctly?
What Happens If You Forget
Skipping a reversal doesn’t corrupt your books permanently, but it sets a trap for whoever posts the next cash transaction. The usual result is double-counting: an expense hits both periods, overstating costs in the new period and leaving the original liability stranded on the balance sheet.
Say you accrued $3,000 in wages at the end of March and didn’t reverse on April 1. When payroll runs in April, the bookkeeper records the full payroll as Wages Expense. Now $3,000 of that payroll is counted twice, once in March’s accrual and again in April’s payroll entry, while the $3,000 Wages Payable liability sits on the balance sheet with nothing to clear it.
The fix is straightforward but requires finding the orphan: identify the stranded accrual, debit the liability, credit the expense. In a small business with a handful of accruals, that’s a nuisance. In an operation running hundreds of accruals a month, missed reversals can compound into material misstatements that take real time to untangle.
Let the Software Handle It
Most accounting platforms will reverse for you. When you post an adjusting journal entry, there’s typically a checkbox or toggle marking it for auto-reversal, and the system generates the mirror entry on the first day of the next period without anyone having to remember.
Use that feature for every qualifying accrual. It removes the most common failure point, which is human forgetfulness, and it enforces consistency. Just confirm the reversal date matches your period structure. Some systems default to the first day of the next period; others let you pick between the last day of the closing period and the first day of the new one.
If your system doesn’t support auto-reversal, keep a running list of every accrual made at period-end and review it on day one of the new period. That checklist is your safety net.
Tax Timing for Accrual-Basis Filers
Reversing entries themselves are a bookkeeping convenience with no direct tax consequence. What matters for tax is whether an accrued expense actually qualifies as incurred in the year you deduct it. Under the accrual method, you report income when earned and deduct expenses when incurred, regardless of cash movement.1Internal Revenue Service. Publication 538 Accounting Periods and Methods
“Incurred” has a specific test. An accrued liability is deductible only when the all-events test is satisfied, meaning both the fact and amount of the liability are established, and economic performance has occurred, which generally means the services have been provided, the property delivered, or payment made, depending on the type of liability.2Office of the Law Revision Counsel. 26 USC 461 General Rule for Taxable Year of Deduction
The recurring item exception adds flexibility. If an item is recurring, the all-events test is met during the tax year, and economic performance happens within 8½ months after year-end, you can deduct it in the earlier year, provided the item is either immaterial or produces a better match against income.2Office of the Law Revision Counsel. 26 USC 461 General Rule for Taxable Year of Deduction This is where year-end accruals for utilities, interest, and recurring vendor invoices often live.
One boundary worth flagging: the mechanics of reversing entries won’t change your tax position, but changing the underlying timing of when you recognize income or expenses on your return can be a change in accounting method, which the IRS treats as established after two or more consecutive returns using the same approach.3Internal Revenue Service. Changes in Accounting Methods
Be Consistent, Or Expect Trouble
Reversing entries are low-risk when applied the same way every period and higher-risk when they’re inconsistent or undocumented. A federal audit of the Highway Trust Fund traced a $94 million misstatement to inconsistent reversal practices: a prior-year accrual reversal landed in the wrong fiscal year, understating net costs and distorting opening balances.4United States Department of Transportation – Federal Highway Administration. Material Weakness in Internal Control – Independent Auditors Report – Highway Trust Fund FY06
Standardize the process. Decide which categories of accruals reverse, write the policy down, and apply it the same way every period. Every reversing entry should trace back to its originating adjustment so someone reviewing the books later can follow the thread. Automation helps enforce consistency, but it doesn’t replace a written policy that your accounting team actually follows.