# How to Accrue an Expense: Journal Entries and Accounting Treatment

Published: 2026-03-16
Author: Warren Team
URL: https://www.heywarren.com/blog/accrue-an-expense

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A single missed accrual can overstate a company's quarterly profit by tens of thousands of dollars — yet posting the corrective journal entry takes less than two minutes. When finance teams skip the discipline to accrue an expense at month-end, they hand management misleading numbers: costs hidden below the line, liabilities absent from the balance sheet, and margins that look better than the underlying business warrants.

The root cause is almost always cash-basis thinking inside an accrual-basis system. Accountants know the obligation exists — the December payroll hasn't processed, the utility bill hasn't arrived — but they wait for the invoice or the bank debit before recording anything. That approach violates the matching principle required under both [GAAP](https://www.fasb.org/) and [IFRS](https://www.ifrs.org/).

This guide covers exactly how to accrue an expense: the standard double-entry journal, the reversing entry that prevents double-counting, and the estimation techniques you need when no invoice exists yet. You will also see which expense categories get accrued most often, how accruals differ from prepayments, and when to use reversing versus non-reversing accruals. By the end, you will be able to handle every routine accrual in a standard month-end close — and defend the entries if an auditor asks. Controllers at companies of all sizes rely on these same mechanics to produce GAAP-compliant financial statements period after period.

## What It Means to Accrue an Expense

When you accrue an expense, you record a cost in the income statement during the period it is incurred — before any cash changes hands. The entry debits an expense account and credits an accrued liability on the balance sheet, ensuring your financial statements reflect actual economic activity rather than payment timing. This is what separates accrual-basis reporting from a simple cash ledger.

This creates an **accrued liability** — money owed but not yet paid — and a corresponding debit that reduces profit for the correct period. The balance sheet carries the obligation until cash is paid; the income statement carries the expense in the period it was earned. The two sides always balance.

**The matching principle** requires that expenses be recognised in the same period as the revenues they helped generate, or in the period in which the obligation arose. A December utility bill must be expensed in December even if it is paid in January. Without this discipline, December's income statement overstates profit and January's understates it — a distortion that compounds across quarters and can mislead every decision made from those numbers.

Accrual accounting is not optional for most businesses. GAAP requires it for companies that carry inventory or exceed $25 million in average annual gross receipts. IFRS requires it globally. Even small businesses that use cash-basis accounting for tax purposes often maintain accrual-basis books for internal management reporting.

## The Journal Entry for Accruing an Expense

The standard entry to accrue an expense debits the relevant expense account — Salaries Expense, Interest Expense, or Rent Expense — and credits Accrued Liabilities, a current liability on the balance sheet. This records the obligation in the period it arose. A reversing entry at the start of the next period then prevents the cost from being counted a second time when the actual invoice or payroll is processed.

![The two-sided journal entry that records an accrued expense: debit the expense account, credit accrued liabilities on the balance sheet.](data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20875%20125%22%20width%3D%22875%22%20height%3D%22125%22%20role%3D%22img%22%3E%3Ctitle%3EFlow%20diagram%3C%2Ftitle%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22%23f8fafc%22%2F%3E%3Crect%20x%3D%2230%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22115%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EExpense%20Incurred%3C%2Ftext%3E%3Ctext%20x%3D%22115%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3Ee.g.%20Dec%20salaries%3C%2Ftext%3E%3Cline%20x1%3D%22205%22%20y1%3D%2262.5%22%20x2%3D%22237%22%20y2%3D%2262.5%22%20stroke%3D%22%2364748b%22%20stroke-width%3D%222%22%2F%3E%3Cpolygon%20points%3D%22244%2C62.5%20235%2C57.5%20235%2C67.5%22%20fill%3D%22%2364748b%22%2F%3E%3Crect%20x%3D%22245%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22330%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EDebit%20Expense%3C%2Ftext%3E%3Ctext%20x%3D%22330%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3EIncome%20statement%3C%2Ftext%3E%3Cline%20x1%3D%22420%22%20y1%3D%2262.5%22%20x2%3D%22452%22%20y2%3D%2262.5%22%20stroke%3D%22%2364748b%22%20stroke-width%3D%222%22%2F%3E%3Cpolygon%20points%3D%22459%2C62.5%20450%2C57.5%20450%2C67.5%22%20fill%3D%22%2364748b%22%2F%3E%3Crect%20x%3D%22460%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22545%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ECredit%20Liability%3C%2Ftext%3E%3Ctext%20x%3D%22545%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3EBalance%20sheet%3C%2Ftext%3E%3Cline%20x1%3D%22635%22%20y1%3D%2262.5%22%20x2%3D%22667%22%20y2%3D%2262.5%22%20stroke%3D%22%2364748b%22%20stroke-width%3D%222%22%2F%3E%3Cpolygon%20points%3D%22674%2C62.5%20665%2C57.5%20665%2C67.5%22%20fill%3D%22%2364748b%22%2F%3E%3Crect%20x%3D%22675%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22760%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ECash%20Paid%20Later%3C%2Ftext%3E%3Ctext%20x%3D%22760%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3ELiability%20clears%3C%2Ftext%3E%3C%2Fsvg%3E)

*The two-sided journal entry that records an accrued expense: debit the expense account, credit accrued liabilities on the balance sheet.*

**Standard accrual entry:**
- **Debit**: Expense account (e.g., Salaries Expense, Rent Expense, Legal Expense)
- **Credit**: Accrued Liabilities (a balance sheet current liability account)

**Example — Accruing December salaries not yet paid:**

Employees earn $50,000 in December; payroll will not be processed until January 5.

December 31 accrual entry:
- Dr. Salaries Expense: $50,000
- Cr. Accrued Wages Payable: $50,000

**Reversal entry** (January 1 or first day of next period):

Most companies post an automatic reversing entry to prevent double-counting when the actual payroll is processed:
- Dr. Accrued Wages Payable: $50,000
- Cr. Salaries Expense: $50,000

When the actual payroll processes in January, the net effect is correct: the $50,000 salary lands entirely in December — the period it was earned — and January's books start clean with no artificial offset distorting the new period's results.

The account name on the credit side may vary by company. Common labels include Accrued Liabilities, [Accrued Expenses](/blog/accrued-expenses) Payable, and Accrued Wages Payable. The function is the same: a current liability that will be settled within twelve months when the actual payment is made.

## Common Expenses That Are Typically Accrued

The most frequently accrued expense categories are salaries and wages, interest, rent, utilities, legal and professional fees, bonuses, income taxes, and warranty costs. Each category shares a defining characteristic: the obligation arises during the current accounting period, but the cash payment or vendor invoice does not arrive until a future period.

| Expense Category | Why It's Accrued | Timing Mismatch |
|---|---|---|
| Salaries and wages | Earned through period-end; paid next period | Bi-weekly or monthly payroll cycles |
| Interest expense | Accrues daily on outstanding debt | Paid quarterly or semi-annually |
| Rent | Obligation arises with occupancy; invoice may lag | Month-end accrual for unpaid rent |
| Utilities | Bills received after service period ends | December utility bill arrives in January |
| Legal fees | Services rendered; invoice not yet received | Ongoing legal work billed in arrears |
| Bonuses | Earned throughout year; paid in Q1 next year | Year-end performance bonus accrual |
| Taxes | Tax liability arises during year; paid quarterly or on filing | Income tax accruals throughout year |
| Warranty expenses | Products sold in period; warranty costs arise later | Estimated future warranty claims |

Each row represents a timing mismatch. The economic event — work performed, service consumed, obligation created — happens inside the reporting period. The cash transaction happens outside it. Accrual accounting closes that gap and makes the income statement report the true cost of doing business during the period, not the cost of paying suppliers on whatever schedule they happen to invoice.

## Accruing Without an Invoice: Using Estimates

When no invoice exists, you estimate the accrual amount using contract rates, historical averages, or purchase orders, then record that figure as the period-end entry. When the actual invoice arrives, you true up the difference. Auditors scrutinize these estimates closely, so you should document your methodology and source data before posting the entry.

The accounts payable team or controller typically estimates based on:
- **Contract rates** — a monthly legal retainer of $10,000 requires no invoice to accrue; the contract is the authoritative source
- **Historical patterns** — if the last three December utility bills averaged $8,500, that figure is a well-supported estimate
- **Vendor quotes or purchase orders** — approved POs provide documented support for the accrued amount and are easy to reference at audit

When the actual invoice arrives, the difference between estimate and actual is recorded as an adjustment. If the estimate was $8,500 and the bill comes in at $8,750, you record an additional $250 expense at that time. If the estimate was higher than the actual, you reverse the excess. Over time, well-calibrated estimates should produce small true-up adjustments — large or recurring differences signal that your estimation methodology needs revision.

**Audit implications:** Cut-off testing — verifying that expenses land in the correct period — is a standard audit procedure. Missing a material accrual is one of the most common adjustments auditors propose for small and mid-sized companies. A documented, consistently applied estimation methodology reduces audit risk and supports the reasonableness of the year-end balance. Companies that keep a schedule of recurring period-end accruals, with prior-period actuals for comparison, handle audit inquiries in minutes rather than hours.

## Reversing Accruals vs. Non-Reversing Accruals

A reversing accrual is automatically offset at the start of the next period, preventing double-counting when the actual invoice or payroll is processed. A non-reversing accrual stays on the books until the underlying liability is settled — used for items like warranty reserves, restructuring charges, and [contingent liabilities](/blog/contingent-liabilities) that resolve across multiple periods rather than in a single subsequent transaction.

![The nature of the underlying obligation determines whether an accrual should reverse automatically or remain on the books until settled.](data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20600%20211%22%20width%3D%22600%22%20height%3D%22211%22%20role%3D%22img%22%3E%3Ctitle%3EHierarchy%3C%2Ftitle%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22%23f8fafc%22%2F%3E%3Crect%20x%3D%22220%22%20y%3D%2220%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22%232563eb%22%2F%3E%3Ctext%20x%3D%22300%22%20y%3D%2254%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22700%22%20fill%3D%22white%22%3EAccrual%20Types%3C%2Ftext%3E%3Cpath%20d%3D%22M%20300%2078%20L%20300%20105.5%20L%20210%20105.5%20L%20210%20133%22%20stroke%3D%22%23cbd5e1%22%20stroke-width%3D%222%22%20fill%3D%22none%22%2F%3E%3Crect%20x%3D%22130%22%20y%3D%22133%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22white%22%20stroke%3D%22%230891b2%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22210%22%20y%3D%22158%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2213%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EReversing%3C%2Ftext%3E%3Ctext%20x%3D%22210%22%20y%3D%22176%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2210%22%20fill%3D%22%2364748b%22%3EPayroll%2C%20invoices%2C%20intere%E2%80%A6%3C%2Ftext%3E%3Cpath%20d%3D%22M%20300%2078%20L%20300%20105.5%20L%20390%20105.5%20L%20390%20133%22%20stroke%3D%22%23cbd5e1%22%20stroke-width%3D%222%22%20fill%3D%22none%22%2F%3E%3Crect%20x%3D%22310%22%20y%3D%22133%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22white%22%20stroke%3D%22%230891b2%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22390%22%20y%3D%22158%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2213%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ENon-Reversing%3C%2Ftext%3E%3Ctext%20x%3D%22390%22%20y%3D%22176%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2210%22%20fill%3D%22%2364748b%22%3EWarranty%2C%20restructuring%2C%20%E2%80%A6%3C%2Ftext%3E%3C%2Fsvg%3E)

*The nature of the underlying obligation determines whether an accrual should reverse automatically or remain on the books until settled.*

**Reversing accruals** work best when the same expense will be recorded again from a real transaction in the next period — a payroll run, a vendor invoice, a bank interest charge. The reversal zeroes out the estimated liability on day one of the new period. When the actual transaction posts, the net income statement impact equals the true amount for the period. Most accounting systems support automatic reversals with a single checkbox at entry time.

**Non-reversing accruals** are appropriate for obligations that will not generate a single matching transaction in the next period:
- **Warranty reserves**: Accrued when products are sold; drawn down as individual warranty claims are filed over 12–24 months following the sale date
- **Restructuring charges**: Recognised when the restructuring plan is communicated; settled as severance payments and facility exit costs are paid out over the restructuring period, which may span 6–18 months
- **Contingent liabilities**: Accrued when the obligation is both probable and estimable under ASC 450; released when the underlying legal or contractual event resolves

Choosing the wrong type creates compounding errors. Using a reversing accrual for a warranty reserve would zero out a multi-period liability on January 1, eliminating an obligation that still exists and understating liabilities for the entire year. Using a non-reversing accrual for payroll would result in double-counting salary expense in January — both the accrual balance and the actual payroll charge hit the income statement simultaneously. The choice between reversing and non-reversing is not a preference; it follows directly from the nature of the underlying obligation.

## Accruals vs. Prepayments

An accrual records an expense that has been incurred but not yet paid — creating a liability on the balance sheet. A prepayment records cash paid before the expense is incurred — creating an asset. Both mechanisms apply the matching principle to shift expense recognition into the correct accounting period, regardless of when money actually moves between accounts.

![Accruals increase current liabilities; prepayments increase current assets — opposite balance sheet effects from the same matching principle.](data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20800%20210%22%20width%3D%22800%22%20height%3D%22210%22%20role%3D%22img%22%3E%3Ctitle%3EComparison%3C%2Ftitle%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22%23f8fafc%22%2F%3E%3Ctext%20x%3D%22230%22%20y%3D%2257.5%22%20text-anchor%3D%22end%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EAccrual%20%28Liability%29%3C%2Ftext%3E%3Crect%20x%3D%22240%22%20y%3D%2225%22%20width%3D%22450%22%20height%3D%2255%22%20rx%3D%226%22%20fill%3D%22%232563eb%22%2F%3E%3Ctext%20x%3D%22702%22%20y%3D%2257.5%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22700%22%20fill%3D%22%232563eb%22%3E-8.5K%3C%2Ftext%3E%3Ctext%20x%3D%22230%22%20y%3D%22152.5%22%20text-anchor%3D%22end%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EPrepayment%20%28Asset%29%3C%2Ftext%3E%3Crect%20x%3D%22240%22%20y%3D%22120%22%20width%3D%22264.70588235294116%22%20height%3D%2255%22%20rx%3D%226%22%20fill%3D%22%237c3aed%22%2F%3E%3Ctext%20x%3D%22516.7058823529412%22%20y%3D%22152.5%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22700%22%20fill%3D%22%237c3aed%22%3E5.0K%3C%2Ftext%3E%3C%2Fsvg%3E)

*Accruals increase current liabilities; prepayments increase current assets — opposite balance sheet effects from the same matching principle.*

They are mirror images of each other:
- **Accrual**: Expense incurred; payment has NOT yet occurred → Accrued Liability created on the balance sheet
- **Prepayment**: Payment made; expense NOT yet incurred → Prepaid Asset created on the balance sheet

A company that pays January rent in December records a prepaid asset of, say, $5,000. That asset converts to rent expense on January 1. A company that uses December electricity but hasn't received the bill records an accrued liability for the estimated amount — perhaps $8,500. Both entries move the expense recognition to the correct period.

The distinction matters for balance sheet classification and financial ratio analysis. Accruals increase current liabilities and reduce working capital. Prepayments increase current assets and improve working capital. A controller who reverses the two will misstate working capital and the current ratio — figures that lenders, investors, and credit rating agencies track closely. The conceptual test is straightforward: did the economic benefit occur before or after the cash moved? Before = accrue a liability. After = recognize a prepaid asset.

## Conclusion

Accruing an expense correctly is what separates financial statements that reflect economic reality from ones that simply mirror a company's bank account. Here are the key takeaways:

- **Match the period.** To accrue an expense means to record it when the obligation arises, not when cash moves. The matching principle — required by GAAP and IFRS — demands this discipline at every month-end close.
- **Use the standard double entry.** Debit the expense account, credit Accrued Liabilities. The mechanics are simple; consistent execution across every period is what makes financial statements reliable.
- **Add a reversing entry for transactional expenses.** For payroll, invoices, and interest, a reversing entry on day one of the next period prevents the cost from being counted twice when the actual transaction posts.
- **Estimate confidently and document thoroughly.** When no invoice exists, use contract rates, historical averages, or purchase orders. Document your method — auditors will ask, and a consistent methodology builds credibility with every close.
- **Choose reversing versus non-reversing based on the nature of the liability.** Short-cycle obligations like payroll reverse automatically. Long-tail liabilities like warranty reserves and restructuring charges stay on the books until settled.

Finance teams that master accrual accounting produce month-end closes that require fewer adjustments, pass audits with fewer findings, and give management the accurate cost data they need to make informed decisions. For related accounting topics, see our guides on [revenue recognition](/blog/recognise-revenue) and [account reconciliation](/blog/account-reconciliation).

Ready to put this knowledge to work? Try Warren, your AI financial advisor — get personalized, conflict-free guidance at heywarren.com

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## Related Reading

**More from Warren**:
- [Revenue Recognition: When and How Companies Record Revenue](/blog/recognise-revenue)
- [Account Reconciliation: What It Is and How to Do It Correctly](/blog/account-reconciliation)
- [Write-Down vs. Write-Off: What They Mean and How They Affect Financial Statements](/blog/writedown)

**Authoritative sources**:
- [FASB — Accrual Accounting Concepts](https://www.fasb.org/page/PageContent?pageId=/about/whatisfasb.html)
- [AICPA — Accounting Standards](https://www.aicpa.org/resources/article/accounting-standards)
- [IRS — Cash vs Accrual Accounting Methods](https://www.irs.gov/businesses/small-businesses-self-employed/accounting-periods-and-methods)
