Owners often pay legitimate company costs with personal funds. Without a clear reimbursement process, those amounts can become mixed with salary, distributions or unreimbursed personal expenses. Start with the transaction: who paid, what business purpose it served, when it happened and whether the company or owner already deducted it. A policy helps organize the process, but a policy without substantiation does not establish accountable plan treatment.
Connect each payment to its supporting expense
An accountable arrangement requires a business connection, adequate substantiation and return of excess advances within the applicable reasonable period. Record the amount and nature of each expense. Mileage needs a business travel record; an expense with personal use requires allocation. A flat monthly payment with no expense support should not be labeled a tax-free reimbursement merely because the company adopted a document. Payroll treatment may be required when payments do not qualify.
Worked planning example
An owner submits $620 of documented business travel costs and $180 of personal meals from the same trip. The reimbursement reviewer approves only the business items after checking whether meal limitations or other rules apply. If the company previously advanced $900, reconcile that advance to the allowable substantiated amount and return any excess. The file should show the report, receipts, approval and settlement instead of a bank transfer labeled reimbursement with no explanation.
Records to bring to the review
- Adopt a practical reimbursement policy.
- Keep receipts, business purpose and travel details.
- Allocate mixed business and personal expenses.
- Reconcile advances and payroll coding.
Can the company reimburse a fixed amount every month?
It can make advances, but accountable treatment requires substantiation and settlement of excess amounts. A fixed payment alone does not meet those requirements.
Read this alongside the AE book and published cases
This companion guide provides additional education for readers of S Corporation Tax Savings. It is not a quotation or chapter excerpt. The worked example is hypothetical and should not be confused with a reported AE client outcome.
Use the to compare the assumptions and supporting records behind published reports. Reported results are publisher statements, not independently audited results or a prediction for another taxpayer. The explains those limits.
Primary source and next reading
IRS guidance for this topic. IRS publications can cover earlier return years; check applicable current-year instructions, law and state treatment before implementation.
Read the complete companion reading sequence or browse the existing learning library. For the broader loss framework, read .
General federal tax education. Actual outcomes require complete facts, applicable law and a taxpayer-specific review. A deduction amount is not the same as tax saved or cash available.
Bring the records identified in this guide to a . Start with the decision you need to make, the year affected and the assumptions that need verification.