When an invoice for last year’s goods or services shows up after you’ve closed the books, the expense still belongs in the prior year. The journal entry for an invoice received after year end is really a sequence of three: accrue the estimated expense on the last day of the old year, reverse that accrual on the first day of the new year, and then record the actual invoice through your normal accounts payable process when it arrives. Done in that order, the expense lands in the correct period, the new year absorbs only the small variance between your estimate and the real bill, and nobody processing the invoice later needs to know an accrual ever happened.
Step 1: Accrue the Expense on the Last Day of the Year
On the final day of your fiscal year, book an entry that recognizes the expense and records a matching liability. For a calendar-year company that’s December 31. The entry debits the relevant expense account and credits accrued liabilities.
Suppose your company received $10,000 of consulting services in December but won’t see the invoice until late January. The December 31 entry:
- Debit: Consulting Expense — $10,000
- Credit: Accrued Liabilities — $10,000
The debit puts the expense on the current year’s income statement. The credit records what you owe on the balance sheet. This is the matching principle in action: expenses belong in the same period as the revenue they helped produce, whether or not the paperwork has caught up.
Accrued Liabilities, Not Accounts Payable
The credit goes to Accrued Liabilities rather than Accounts Payable, and the distinction matters. Accounts Payable is for obligations tied to a vendor invoice you’ve already received and entered. Accrued Liabilities covers amounts you owe but haven’t been formally billed for. When the real invoice arrives, it enters Accounts Payable through the ordinary workflow.
Estimating the Amount
Use the best information you have. If a contract sets the rate, use it: 40 hours at $250 an hour is $10,000, and that’s your number. Without a contract, look at recent billing history, the vendor’s last invoice for comparable work, or an average of the last few months of a recurring charge. An imperfect estimate in the right period beats no entry at all. Document how you got to the figure. Auditors and the IRS both want to see the basis.
If the Purchase Is a Capital Item
When the late invoice covers equipment or another long-lived asset, don’t debit an expense account. Debit the fixed asset account instead. The cost then hits earnings over time through depreciation rather than in a single period. Booking a capital purchase as a current expense overstates expenses now and understates assets, which affects both financial statements and the tax return.
Step 2: Reverse the Accrual on the First Day of the New Year
On day one of the new fiscal year, reverse the entry exactly:
- Debit: Accrued Liabilities — $10,000
- Credit: Consulting Expense — $10,000
The debit clears the temporary liability from the balance sheet. The credit sits in the new year’s expense account as a negative balance. That negative balance is doing real work: it’s a placeholder that keeps the expense from being counted a second time when the real invoice comes through.
Most accounting systems will run this reversal automatically if you flag the original entry as reversing. If yours doesn’t, put it on someone’s calendar. Forgetting the reversal is the single most common way this process fails. When the real invoice gets booked with no reversal in place, the expense hits both years, the accrued liability never clears, and you’re left with a phantom obligation on the balance sheet and overstated total expenses across the two periods.
Step 3: Record the Actual Invoice Normally
When the invoice arrives, book it through your standard accounts payable process as if the accrual never happened. Say the vendor bills $10,500 on February 15:
- Debit: Consulting Expense — $10,500
- Credit: Accounts Payable — $10,500
The $10,500 debit combines with the $10,000 credit that Step 2 parked in the expense account. Net effect on the new year’s income statement: $500, the difference between your estimate and the real bill. The other $10,000 was already recognized in the prior year.
If the real invoice came in at $9,800 instead, the math reverses. The $9,800 debit against the $10,000 credit leaves a net $200 credit in the expense account, trimming new-year expenses by the amount you over-accrued. Either way, the variance self-corrects in the current period.
The point of running the sequence this way is that the person entering the February invoice doesn’t need to know about the accrual, look up the estimate, or split the entry between years. The reversal has already handled it.
When the Estimate Misses by a Lot
A modest variance flows through the current year and nobody notices. A large one may not be something you can simply absorb. Under ASC 250, a material misstatement in prior-period statements that resulted from information available when those statements were prepared is an accounting error that may require restatement. Materiality is judged on both size and context. A $50,000 variance on a $10 million income statement may not move the needle; the same $50,000 on a $200,000 income statement almost certainly does.
If you discover a large gap between your accrual and the real invoice, talk to your auditors before running the difference through the current period. The correction may need to go back to the prior year rather than be absorbed now.
Getting the Tax Year Right
GAAP tells you where the expense goes on your income statement. The IRS has its own test for when an accrual-basis taxpayer can deduct it. Treasury Regulation 1.461-1 sets out the all-events test: the deduction is allowed in the year when all events establishing the liability have occurred, the amount is determinable with reasonable accuracy, and economic performance has taken place.1eCFR. 26 CFR 1.461-1 – General Rule for Taxable Year of Deduction
Economic performance is the piece that trips people up. For services provided to you, economic performance happens as the services are performed. Consulting work done in December is deductible in that tax year, even if the invoice arrives in February.
The Recurring Item Exception
What if the work straddles year-end, or economic performance slips slightly into the new year? Treasury Regulation 1.461-5 offers a recurring item exception that can let you claim the deduction in the earlier year anyway. The liability has to satisfy the all-events test aside from economic performance by year-end, economic performance has to occur by the earlier of the return filing date (including extensions) or 8½ months after year-end, the item has to be one you can reasonably expect to incur again, and either the amount must be immaterial or accruing it earlier must produce a better match with related income.2eCFR. 26 CFR Part 1 – Taxable Year for Which Deductions Taken The exception is useful for utilities, rent, and other recurring items whose billing cycles don’t line up with the fiscal year, but it’s an accounting method you adopt, not something you apply transaction by transaction.
If You’re on the Cash Method, You Can Skip This
Cash-basis businesses record expenses when they pay them, so year-end accruals for unbilled expenses aren’t part of the process. Whether you have the choice depends on the entity. Under IRC Section 448, C corporations, partnerships with a C corporation partner, and tax shelters generally must use the accrual method unless they pass a gross receipts test.3Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting The statutory base is $25 million in average annual gross receipts over the prior three years, indexed for inflation. For tax years beginning in 2025 the threshold is $31 million.4Internal Revenue Service. Revenue Procedure 2024-40 Below that, the cash method is generally available and year-end accrual entries aren’t required.
Documentation and What Auditors Check
You don’t need to accrue every trailing dollar. Materiality means booking accruals only for amounts large enough to matter to a reader of the financial statements. Most companies set an internal threshold and expense smaller late invoices as they come in. The SEC has emphasized that materiality is a matter of both quantitative and qualitative factors rather than a fixed numerical cutoff.5U.S. Securities and Exchange Commission. SEC Staff Accounting Bulletin No. 99 – Materiality Whatever threshold you use, apply it consistently.
For the accruals you do record, keep a paper trail that can stand in for the missing invoice: a signed service agreement with the contracted rate, a purchase order, vendor correspondence confirming scope, or receiving reports showing goods arrived before year-end. That documentation supports both the audit and the tax deduction.
External auditors run a specific procedure called the search for unrecorded liabilities. They sample cash disbursements made in the weeks after year-end and check whether any relate to goods or services received before the balance sheet date. A January check paying for December work with no corresponding accrual is a finding. They also review vendor statements, examine unprocessed invoices in the accounts payable inbox, and compare year-end payables to prior periods for unusual drops.
The easiest way to stay ahead of that review is to ask before you close. A short note to department heads and purchasing staff — anything received in the final weeks of the year that hasn’t been billed yet? — turns up most of what would otherwise become an audit adjustment or a reopened period.