Set Up an Accountable Plan: Reimbursements and Payroll Controls
By AE Tax Advisors · Published 2026-01-06
Updated November 8, 2026.
An accountable plan governs how an employer reimburses employee business expenses. Qualifying payments are generally excluded from wages, but calling a payment a reimbursement does not establish that treatment. Design the process around actual expenses and the requirements in IRS Publication 15.
The three requirements
- Business connection: the arrangement reimburses qualifying expenses incurred while performing services for the employer.
- Substantiation: the employee accounts for the expenses within a reasonable period.
- Excess repayment: the employee returns amounts exceeding substantiated expenses within a reasonable period.
Amounts that fail the rules may need wage treatment. The plan cannot simply reclassify compensation as tax-free expense money.
Identify the employer and covered employees
An owner working as an employee of a corporation presents different issues from a sole proprietor reimbursing themselves or a partner receiving payments from a partnership. Confirm the entity, employment relationship and expense owner before adopting an employee reimbursement process.
For an S corporation owner-employee, keep reasonable wages, distributions, loans and expense reimbursements separately recorded. Reimbursement is not a substitute for compensation.
Write a practical policy
Identify covered expense categories, required receipts and business-purpose records, approval responsibility, submission intervals, treatment of advances and repayment of excess amounts. A written policy helps operations, but actual compliance matters as well.
Publication 15 describes reasonable-period safe harbors, including accounting within 60 days and returning excess within 120 days after the expense. These are not permission to ignore unsupported amounts until year-end.
Apply category-specific limits
Vehicle reimbursement requires supported business miles and an eligible method. For standard-mileage business use in 2026, use 72.5 cents per mile for January–June and 76 cents for July–December. Do not reimburse the same fuel or depreciation twice.
Home-office expenses require a qualifying business-use analysis and supported allocation. Do not automatically use a sole proprietor's simplified home-office deduction as a corporate reimbursement rate. Personal mortgage principal and unrelated household costs are not business expenses.
Business travel and meals require their own purpose, location and substantiation. The employer's deduction percentage is a separate question from whether a properly substantiated payment is excluded from employee wages. Entertainment and 2026 employer-meal rules need category-specific review.
Run a monthly reconciliation
- Match each request to receipts, dates and business purpose.
- Allocate personal use and remove duplicate or already paid expenses.
- Record approval and the actual reimbursement payment.
- Reconcile advances and excess amounts.
- Send nonaccountable amounts to payroll when required.
See the reimbursement documentation guide for the evidence file. Request an accountable-plan review with the current policy, payroll records and sample expense requests.
Frequently Asked Questions
Does a written policy make every payment tax-free?
No. Actual business connection, substantiation and return of excess are required.
Can owner wages simply be replaced by reimbursements?
No. Reimburse qualifying expenses separately from compensation for services.
Does a sole proprietor reimburse themselves under an employee plan?
A sole proprietor generally reports their own business expenses directly; identify the entity and employment relationship first.
Sources and update notes
Source references and the changes described in this guide were checked November 8, 2026. Published by AE Tax Advisors; see our editorial policy. Examples are illustrative and require review of your records before filing.