For a US small or midsize business keeping accrual-basis books under US Generally Accepted Accounting Principles (GAAP), the difference between accrued expenses and accounts payable comes down to one document: the vendor invoice. Accounts payable is money owed on bills that have arrived and been recorded — the vendor, amount, and due date are known. An accrued expense is a cost already incurred by the reporting date that has not been billed yet, so it is recorded as a documented estimate. Both are current liabilities, and both put the expense in the period the cost was incurred. The biggest limitation: neither account exists on a pure cash basis, and an accrual stays an estimate until the real bill lands.
Quick answer
At each period end, ask one question for every cost: has the bill arrived and been entered?
- Yes — the liability is already in accounts payable; verify the amount, coding, and due date.
- No, but the goods or services were received — record an accrued expense for your best documented estimate, then reverse it on day one of the next period so the real bill does not get counted twice.
The choice between the two accounts changes which liability line shows the cost — it never changes your profit, because the expense is recognized when incurred either way. This guide is part of our accounting operations and reporting hub, which covers the close and reporting routines this distinction feeds into.
What is accounts payable?
Accounts payable (AP) is the invoiced liability: a supplier’s bill has been received, entered, and approved for payment, so the balance is a known amount owed to a known vendor on known terms. The US Securities and Exchange Commission (SEC) Beginners’ Guide to Financial Statements (SEC’s published primer, last updated February 2007; accessed July 28, 2026) lists “money owed to suppliers for materials” among typical liabilities and defines the current portion this way:
“Current liabilities are obligations a company expects to pay off within the year.” — U.S. Securities and Exchange Commission
Because the invoice itself is the evidence, an AP balance is not an estimate. The workflow that gets a bill from inbox to approved-for-payment — capture, coding, approval, scheduling — is a separate discipline covered in our guide to building an accounts payable process for a small business. This article starts where that one ends: costs your business has already consumed but no vendor has billed yet.
What is an accrued expense?
An accrued expense is the uninvoiced side of the same coin: the goods or services were received (employees worked, power was consumed, the attorney drafted the contract), so the cost was incurred, but no bill has arrived by the close date. The Financial Accounting Standards Board (FASB) defines the underlying concept in Concepts Statement No. 8, Chapter 4, Elements of Financial Statements (issued December 22, 2021, per the FASB news release; accessed July 28, 2026), paragraph E37:
“A liability is a present obligation of an entity to transfer an economic benefit.” — Financial Accounting Standards Board, Concepts Statement No. 8, Chapter 4, paragraph E37
The obligation is what matters, not the paperwork. The same chapter explains that the obligation must exist at the financial statement date (paragraph E45) — December wages earned by December 31 are an obligation on December 31 even if payday is in January. FASB’s Concepts Statement No. 8, Chapter 1 (as amended December 2021, full text PDF; accessed July 28, 2026) describes accrual accounting as recording the effects of transactions in the periods they occur, “even if the resulting cash receipts and payments occur in a different period,” and lists common accruals including purchases on account and not-yet-paid interest, rent, wages and salaries, and taxes.
One scope note: FASB’s Concepts Statements frame the standards; they are not themselves authoritative GAAP. In FASB’s words from the December 2021 release:
“A Statement of Financial Accounting Concepts is nonauthoritative and does not establish or change generally accepted accounting standards.” — Financial Accounting Standards Board
For a small-business close, though, the framework gives the practical test: if the obligation exists at period end and no invoice is recorded, accrue a best estimate.
Which period should carry the cost?
The accrual-versus-payable question is really a timeline question. The cost belongs to the period in which it was incurred; the liability account just tracks where the paperwork stands at each date.
Table 1: Timeline of one uninvoiced cost across a December 31 period end.
| Date / stage | What happens | Liability account used | Journal entry |
|---|---|---|---|
| December 15–31 | Service received; cost incurred | None yet — unbilled | — |
| December 31 (close) | No invoice on file; estimate accrued | Accrued expenses | Debit expense; credit accrued liabilities |
| January 1 | Accrual reversed | None | Debit accrued liabilities; credit expense |
| January 12 | Invoice arrives and is entered | Accounts payable | Debit expense; credit accounts payable |
| January 31 | Bill paid | None | Debit accounts payable; credit cash |
Interpretation: the expense lands in December once (via the accrual), the January reversal clears the estimate so the January invoice is not double-counted, and the liability moves from “accrued” to “payable” as the paperwork catches up. Why expenses attach to the period they were incurred — the matching principle and its effect on margins and trends — is covered in our guide to how expense timing flows through your financial statements; this page stays on the liability mechanics.
What do the entries look like for payroll, utilities, and professional fees?
The following is a hypothetical illustration with made-up inputs for a fictional US company, Harborline Consulting LLC, closing its December 2026 books on an accrual basis. It shows book accounting only — not tax treatment — and it ignores payroll withholdings and employer payroll taxes to keep the entries readable.
Table 2: Harborline’s December 31, 2026 accrual entries (made-up inputs).
| Cost incurred | Basis for the amount | Debit account | Credit account | Amount |
|---|---|---|---|---|
| Wages for the last 4 of 10 workdays in the biweekly pay period (gross wages $15,000 per period, paid January 8, 2027) | Payroll register: 4 ÷ 10 × $15,000 | Wages expense | Accrued wages payable | $6,000 |
| December electricity, metered through December 31, bill expected mid-January | Trailing-bill trend | Utilities expense | Accrued utilities payable | $1,200 |
| Year-end tax work performed in December by a certified public accountant (CPA) firm under a fixed-fee engagement letter, invoice expected February 2027 | Contract price | Professional fees expense | Accrued professional fees | $3,500 |
| Total accrued liabilities at December 31 | sum of lines | $10,700 |
Interpretation: wages and utilities are true estimates (usage-based), while the CPA fee is contract-priced — it is still an accrual rather than AP because no invoice was received by the close. The estimation basis, not the label, is what an accrual documents.
Now the January mechanics, using the electricity line. On January 1 the $1,200 accrual reverses (debit accrued utilities payable, credit utilities expense). The actual bill arrives January 15 at $1,240 and is entered as a bill: debit utilities expense $1,240, credit accounts payable $1,240. Because the reversal credited January utilities expense by $1,200, January’s net utilities expense is $1,240 − $1,200 = $40 — the estimation miss. Across the two months the expense totals $1,200 (December) + $40 (January) = $1,240, exactly the real bill. Wages work the same way: January books the full $15,000 payroll, the reversal credits back $6,000, and January nets $9,000 for its 6 workdays ($6,000 + $9,000 = $15,000 across both periods).
The reversal step is standard practice, not a rule — some bookkeepers skip it and instead post the incoming bill against the accrual account (debiting the accrued liability instead of the expense). Both methods land in the same place; pick one and apply it consistently. If you use QuickBooks Online, its built-in reverse function automates the dating: per Intuit’s journal-entry documentation (updated May 26, 2026; accessed July 28, 2026), the reversing entry “keeps the original journal no. and adds the letter ‘R’” and “is dated the first day of the month following the original journal entry date” — exactly the day-one reversal this workflow needs.
Where do the two accounts appear on the financial statements?
Balance sheet. Both sit in current liabilities — obligations expected to be paid within the year per the SEC definition quoted earlier. Small-business balance sheets commonly show them as two lines (“Accounts payable” and “Accrued expenses” or “Accrued liabilities”); larger companies sometimes combine them into “accrued expenses and other current liabilities.” For Harborline, with $18,300 of supplier bills already entered (a made-up input) plus the $10,700 of accruals from Table 2, the two lines total $18,300 + $10,700 = $29,000 of current liabilities.
Income statement. Unaffected by the classification. December’s income statement already includes the full $10,700 of accrued costs whether the balance sheet labels them “accrued” or waits to call them “payable.” That is why the accrual-versus-AP question is a balance-sheet-presentation and close-process question, not a profit question.
Cash flow statement. Under the indirect method, period-over-period changes in AP and accrued liability balances are reconciled within operating activities — the SEC guide describes that section as adjusting net income “for any cash that was used or provided by other operating assets and liabilities.” A growing accrued balance means costs recognized but not yet paid in cash.
Does tax treatment match the books?
Not necessarily — book and tax are different systems. The Internal Revenue Service (IRS) explains in Publication 538, Accounting Periods and Methods (accessed July 28, 2026):
“Under an accrual method of accounting, you generally report income in the year it is earned and deduct or capitalize expenses in the year incurred.” — IRS Publication 538
But for a tax accrual-method deduction, Publication 538 adds two gates beyond the GAAP “incurred” test: the all-events test (the liability is fixed and determinable with reasonable accuracy) and economic performance must have occurred. So a GAAP book accrual — especially one based on estimates — can be recognized for book purposes in one year and become tax-deductible in another. Cash-method taxpayers are simpler: expenses are generally deducted when paid, so neither accruals nor AP balances drive the tax return. Many small businesses keep accrual-basis books for management and lender reporting while filing on a permitted tax method; Publication 538 explains the eligibility rules, and a tax advisor should confirm which method your entity actually files under.
How do you run the distinction at month-end close?
Use this decision tree for every cost line before you sign off the period. It is a bookkeeping workflow, not an audit procedure.
- Was the good or service received by period end? No → nothing to record; it is a future cost. Yes → continue.
- Is the invoice received and entered? Yes → the cost is in AP; confirm coding, period, and due date, then stop. No → continue.
- Can you quantify the amount from evidence? Contract or engagement letter, payroll register, meter or usage history, recurring-bill trend → accrue that documented estimate. No reliable basis and the amount is likely immaterial → document the decision and skip; if likely material, accrue a flagged rough estimate and chase the documentation.
- Reverse on day one of the next period (or set the process to clear the bill against the accrual) so the eventual invoice cannot double-count.
- True up when the bill arrives. Book any difference in the current period — like Harborline’s $40 — and if the same line misses materially month after month, fix the estimation input rather than absorbing the variance.
The usual accrual candidates at a small-business close: wages between the last period end and payday, utilities metered but unbilled, professional fees under engagement letters, loan interest, taxes, and earned-but-unpaid commissions.
FAQs
Is an accrued expense the same thing as accounts payable?
No. Both are current liabilities for costs already incurred, but accounts payable is invoiced and exact, while an accrued expense is uninvoiced and estimated. When the bill arrives, the liability effectively moves from the accrued line to the payable line.
Does choosing one account over the other change my profit?
No. The expense is recognized in the period the cost was incurred either way. The accrual-versus-payable question only decides which current-liability line carries the obligation on the balance sheet.
Do cash-basis books have accrued expenses or accounts payable?
Not on a pure cash basis — costs are recorded when cash moves. A business can still keep accrual-basis books for management and lender reporting while filing taxes under a permitted method; Publication 538 covers the tax-side rules.
What happens if my accrual estimate is wrong?
The difference trues up in the period the real invoice arrives: under-accrue and the next period absorbs the shortfall (the $40 electricity gap in the example); over-accrue and the next period gets a small credit. Repeated large misses mean the estimation input — usage trend, contract terms, day-count — needs updating.
Are accrued expenses always current liabilities?
Almost always in small-business practice, because payroll, utility, and fee accruals settle within days or weeks. Anything genuinely due beyond one year would be presented as a long-term liability under the same SEC one-year convention.
The bottom line
The working rule for every close: bill in hand and entered means accounts payable; cost incurred but unbilled means accrue a documented estimate; reverse it on day one of the next period; true up when the real invoice lands. Done consistently, that keeps December’s costs in December, prevents double-counting, and leaves a clean audit trail for every estimate. If your month-end accruals keep slipping — missed utility accruals, payroll gaps, invoices double-posted against stale estimates — our remote bookkeeping services can tighten your accrual close and run this checklist for you every month.
This article provides general educational information, not accounting, tax, or legal advice. Journal entries are simplified illustrations with made-up inputs; actual entries depend on your chart of accounts, accounting basis, payroll setup, and facts. Consult a qualified accountant or tax advisor about your specific books and filings.