In accrual accounting, accrued vs prepaid comes down to which side of the transaction moves first. Accrued items record economic activity that has already happened but hasn’t been paid for yet. Prepaid items record cash that has already changed hands for activity that hasn’t happened yet. Both exist because accrual accounting recognizes revenue when earned and expenses when incurred, not when cash moves, and the gap between the two is where these entries live.
That single distinction produces four familiar line items: accrued expenses, accrued revenue, prepaid expenses, and unearned revenue. Two are liabilities or expenses waiting for cash to catch up. Two are assets or liabilities holding cash until the activity catches up. Handled correctly, they keep each period’s income statement honest. Handled poorly, they distort earnings and, for public companies, invite regulator attention.
The Core Distinction
Two accounting principles drive everything below. The expense recognition principle puts costs in the same period as the revenue they helped produce. The revenue recognition principle, codified in ASC 606, puts revenue in the period when the performance obligation is satisfied, not when the invoice is paid.1Financial Accounting Foundation. GAAP and Public Companies Without those guardrails, a company could inflate one quarter’s profit simply by collecting cash early or pushing a bill into the next month.2U.S. Securities and Exchange Commission. Financial Reporting Manual
Accrued items exist because activity outran cash. The work is done, the interest has accumulated, the service has been delivered, but no one has paid or collected. Prepaid items exist because cash outran activity. The check cleared or the deposit landed, but the underlying work still hasn’t happened. Every adjusting entry in this area is doing one of those two jobs.
Accrued Expenses
Accrued expenses are costs the business has already incurred but not yet paid. They appear as liabilities on the balance sheet because the company owes someone for work or services already consumed.
Payroll is the everyday example. Employees work through the last week of December, but payday falls in January. Those wages belong on December’s income statement, with a matching liability on the balance sheet. Interest on a business loan behaves the same way. Interest accrues daily even when the lender collects only quarterly, so each month the company records the interest it owes as an expense and adds to accrued interest payable. Utilities used but not yet billed follow the same pattern: electricity consumed in December belongs in December’s financials, even if the invoice arrives in January.
Payroll taxes ride along with wage accruals. When a business accrues wages, it also accrues the employer’s share of FICA and unemployment taxes on those wages. Under IRS rules for accrual-basis taxpayers, the all-events test for the employer’s tax liability is met once the employees have performed the work, because at that point the obligation is fixed and the amount can be calculated with reasonable accuracy.3Internal Revenue Service. Accounting Periods and Methods Skipping the payroll tax accrual while recording the wage accrual understates liabilities on both statements.
Accrued Revenue
Accrued revenue is the mirror image: the company has earned money but hasn’t received it yet. A consulting firm that finishes a project milestone on December 31 but won’t invoice until January still earned that revenue in December. The firm records an asset, typically accounts receivable, and recognizes the revenue on December’s income statement. Interest earned on a bond investment that hasn’t reached its coupon date works the same way. The company has a legal right to the cash, so it records the asset even though the money hasn’t landed.
Under ASC 606, revenue recognition hinges on satisfying a performance obligation, not on invoicing or collecting. If the obligation was satisfied before period-end, the revenue belongs in that period.
Prepaid Expenses
A prepaid expense is a payment for something the company will consume in a future period. Pay a $12,000 annual insurance premium on January 1 and only $1,000 of it applies to January. The other $11,000 sits on the balance sheet as a prepaid asset. Each month, $1,000 migrates from that asset account to insurance expense on the income statement. Prepaid rent works identically when a lease requires several months upfront.
The systematic conversion of prepaid asset into expense prevents one artificially large expense hit in the month the check cleared. Without prepaid treatment, January would show $12,000 in insurance cost and every following month would show zero, which tells you nothing useful about what insurance actually costs each month.
Unearned Revenue
Unearned revenue, also called deferred revenue, is cash the company collected for something it hasn’t done yet. A software company that sells a one-year subscription for $1,200 and collects the full amount upfront can only recognize $100 per month as the service is delivered. The remaining balance sits on the balance sheet as a liability because the company still owes the customer future performance. Gift cards follow the same logic. The retailer has the customer’s money but owes them merchandise until the card is redeemed.
The Adjusting Entries
Accrued and prepaid items don’t record themselves. At the end of each period, adjusting entries move amounts between balance sheet and income statement accounts. Every one of these entries touches at least one balance sheet account and one income statement account, and none of them involves cash. If cash is being debited or credited, it isn’t an adjusting entry.
The four patterns:
- Accrued expense. Debit the expense account and credit a payable account. For $1,500 of wages earned but unpaid, debit Salaries Expense $1,500 and credit Salaries Payable $1,500.
- Accrued revenue. Debit accounts receivable and credit the revenue account. A $3,000 consulting milestone completed but not invoiced means debit Accounts Receivable $3,000 and credit Consulting Revenue $3,000.
- Prepaid expense. Debit the expense account and credit the prepaid asset account for the portion consumed. Using $1,000 of a prepaid insurance policy means debit Insurance Expense $1,000 and credit Prepaid Insurance $1,000.
- Unearned revenue. Debit the unearned revenue liability and credit the revenue account for the portion earned. Delivering $100 of a prepaid subscription means debit Unearned Revenue $100 and credit Subscription Revenue $100.
The pattern is consistent. Accrued entries create new balance sheet accounts to reflect obligations or rights that already exist. Prepaid entries whittle down existing balance sheet accounts as the underlying activity occurs.
Reversing Entries the Next Period
Adjusting entries solve one problem and create another. After accruing $1,500 in salaries at the end of December, what happens when payroll runs in January? Without cleanup, the bookkeeper has to manually split the January paycheck between the amount already accrued and the amount that belongs to January. Multiply that across dozens of accruals and the process gets tedious and error-prone.
Reversing entries fix this. On January 1, the company records the exact opposite of December’s accrual: debit Salaries Payable $1,500 and credit Salaries Expense $1,500. That zeros out the accrual. When the actual payroll entry hits in January, it records the full paycheck as expense in the normal way. The reversal ensures the expense is only counted once across the two periods.
Reversing entries are optional, not required by GAAP, but most companies use them for accrued expenses and accrued revenues because the bookkeeping simplification is substantial. Prepaid items typically don’t need reversing entries because they get consumed through the normal monthly adjustment process.
Where Tax Treatment Diverges From the Books
GAAP and the tax code don’t always agree on how to handle these items. Two divergences show up most often.
The first is the IRS 12-month rule for prepaid expenses. Under GAAP, you spread the expense over the benefit period without exception. For tax purposes, if a prepaid expense creates a benefit that doesn’t extend beyond the earlier of 12 months after the benefit begins or the end of the next tax year, the full amount can be deducted immediately instead of capitalized and amortized.3Internal Revenue Service. Accounting Periods and Methods A 12-month insurance policy paid on January 1 qualifies. A 15-month policy paid the same day would not, because the benefit extends beyond 12 months. The rule also fails for certain intangibles, like amortizable Section 197 assets or rights of indefinite duration.4eCFR. 26 CFR 1.263(a)-4 – Amounts Paid to Acquire or Create Intangibles The result is a common book-tax difference: the financial statements show a prepaid asset being expensed over 12 months, while the tax return deducts the whole thing in year one.
The second is the economic performance requirement for accrued expenses. GAAP generally allows an expense once the obligation is fixed and the amount is reasonably determinable. The tax code adds a third condition: economic performance must occur before the deduction is allowed. For routine liabilities like services received or property delivered, economic performance happens as the services or goods are provided, so book and tax timing usually line up. The divergence shows up with liabilities from lawsuits, contract breaches, or workers’ compensation claims. For those, economic performance occurs only when payment is actually made, so the tax deduction can lag years behind the GAAP expense.5eCFR. 26 CFR 1.461-4 – Economic Performance
A recurring-item exception softens this for predictable, repetitive liabilities. If the all-events test is met by year-end and the company actually pays the liability within eight and a half months after the close of the tax year, the deduction can be taken in the earlier year, provided similar items are treated consistently.3Internal Revenue Service. Accounting Periods and Methods This exception matters most for accrued property taxes, employment taxes, and similar obligations that straddle year-end.
What Happens When These Entries Are Wrong
Getting accrued and prepaid entries wrong is not an academic problem. For public companies, the SEC treats revenue and expense recognition errors as financial reporting violations. Monsanto paid an $80 million penalty for misstating earnings by failing to recognize rebate expenses in the correct period, and three individual executives faced personal fines and suspensions from practicing before the SEC.6U.S. Securities and Exchange Commission. Monsanto Paying $80 Million Penalty for Accounting Violations Amyris, a biotech company, paid $300,000 for improperly recognizing royalty revenue before the performance obligations were met.7U.S. Securities and Exchange Commission. SEC Charges Amyris with Improper Revenue Recognition
On the tax side, an incorrect accounting method that understates taxable income triggers the IRS accuracy-related penalty of 20% of the underpayment, plus interest that compounds until the balance is paid.8Internal Revenue Service. Accuracy-Related Penalty The interest on a large deficiency can dwarf the original underpayment.