Accountable plans: when a reimbursement is not wages
The three tests of an accountable plan, the 30/60/120-day safe harbor, and an unreturned travel advance, on Northwind's trade show trip.
A reimbursement can pass through payroll unseen or become wages with withholding and a line on a W-2. What decides it is whether the arrangement is an accountable plan. Pay an employee back under one and the money is not income to them and not payroll to you. Pay them back loosely, and every dollar is wages.
A reasonable period, in days
"Reasonable" depends on the facts, unless the arrangement uses the fixed-date method. Inside it, an advance is made no more than 30 days before the expense, the expense is accounted for within 60 days after, and any excess comes back within 120 days after. A second safe harbor, built on a periodic statement sent to employees, sits in the same regulation. Northwind's own deadline is shorter than the safe harbor, so the month's cost is in the books before the close.
September 9, 2026
The earliest an advance for this trip stays inside the safe harbor (30 days before)
October 2, 2026
She is advanced $600
October 9, 2026
The trade show: the expense is incurred
December 8, 2026
Report and receipts due (60 days)
February 6, 2027
Any unspent money back (120 days)
The advance nobody settled
The advance was made inside the window. She spent $410 and has kept the other $190. Nobody asked for it back. The regulation is plain about what that is: amounts paid beyond the substantiated expenses are treated as paid under a nonaccountable plan.
Travel advance, trade show
| Account | Debit | Credit |
|---|---|---|
| Employee advances | 600.00 | |
| 1000Cash | 600.00 | |
| Balanced | 600.00 | 600.00 |
The advance goes out. It is an asset (a receivable from the employee), not an expense.
Advance settled; the unreturned excess is wages
| Account | Debit | Credit |
|---|---|---|
| Travel expense | 410.00 | |
| 6000Payroll expense | 190.00 | |
| Employee advances | 600.00 | |
| Balanced | 600.00 | 600.00 |
Settled with the excess kept: the unreturned part is payroll expense, not travel.
Employer Social Security and Medicare on the excess
| Account | Debit | Credit |
|---|---|---|
| 6100Payroll tax expense | 14.54 | |
| 2100Payroll liabilities | 14.54 | |
| Balanced | 14.54 | 14.54 |
And the company's own payroll tax on those wages.
The income tax and her share of Social Security and Medicare on the excess are withheld from her next paycheck; the employer's share is the entry above. The sums are small, which is exactly why the problem lives for years.
The review queue
On December 20, 2026 six items are waiting. Each sits in one of four positions against the safe harbor: submitted in time with whatever proof it needs, submitted without a required receipt, submitted late, or not submitted at all and past the line.
Receipts and a deadline are what separate a reimbursement from a raise.
Finished this lesson?
Where this lesson's rules come from
The sources behind this lesson's requirements, by kind. Anything marked as a convention is ours, not the rule-maker's.
- Federal regulation
- Treas. Reg. §1.62-2(g)(2)(i), the fixed-date method (opens in a new tab)What counts as a reasonable period under an accountable planFree to read
- Treas. Reg. §1.62-2(c)(3)(ii) (opens in a new tab)Reimbursement beyond the substantiated expense is a nonaccountable paymentFree to read
- Treas. Reg. §1.274-5(c)(2)(iii)(A) (opens in a new tab)When a receipt is required: lodging, and any other expense of $75 or moreFree to read
- IRS guidance
- IRS Publication 463, Travel, Gift, and Car Expenses (2025) (opens in a new tab)Reimbursements, per diem, the 50% limit on meals and accountable plansFree to read
The words this lesson teaches
Each links to its glossary definition, which also names the authority behind it and the components that render it.
- Accountable planAn employer reimbursement arrangement under which an employee's business expense reimbursements are not wages: the expense has a business connection, the employee adequately accounts for it within a reasonable time, and any excess is returned within a reasonable time. Fail one test and the reimbursement is taxable wages
- ReimbursementRepaying an employee for a business cost they paid personally. Until paid it is owed to the employee, not to a vendor; whether it is tax-free depends on the employer's accountable plan
- Expense reportAn employee's itemized claim for business costs they paid out of pocket or on a company card, with receipts and a business purpose for each line. It becomes a liability to the employee once approvedConvention
- Per diemA fixed daily allowance paid for lodging, meals and incidental expenses in place of reimbursing actual cost. Within the federal rate for the place and date it substantiates the amount of the expense under an accountable plan; time, place and business purpose still need recording
In the founder glossary
This lesson’s ideas, explained for the founder running the company. Each has an entry in the founder glossary.
See also
- Procure to pay (AP)The payables stack from requisition to reconciliation: requisition → PO → receipt → bill → approval → payment → reconciliation.
- LexiconOne word per concept, used the same way in code, UI copy, and docs. Call one thing by two names and the accountants using your product notice first, then stop trusting the numbers.
- Employee expense reimbursements and accountable plansHow to reimburse employees tax-free under an IRS accountable plan: business purpose, timely receipts, excess returned, mileage and sales tax on receipts.
- Payroll journal entries, from gross to netGross wages, employer taxes, withholding and net pay as journal entries: what each payroll run books, how to accrue it at month end, and where benefits go.
- ExpenseCaptureCamera-first, policy violations shown at entry.
- ApprovalInboxMobile-first, document inline.
- ReceiptSheetPrintable/shareable receipt.