Accountable plans: reimbursing yourself the right way

Once you elect S-corp treatment, a quiet problem appears: you can no longer claim a home office or mileage deduction on your personal return the way a sole proprietor does, because you are now an employee of your own corporation. The solution the tax code provides is an accountable plan — a formal reimbursement arrangement that lets the business pay you back for legitimate business costs you personally incurred, deducting them at the company level while the reimbursement stays tax-free to you. This is a technical S-corp topic; set it up with a CPA.

The problem it solves

As an S-corp owner-employee, your home office, personal-car business mileage, cell phone, and internet are real business costs paid from your personal pocket. Without a mechanism, those deductions can be lost — employees generally cannot deduct unreimbursed business expenses. An accountable plan is that mechanism: the business reimburses you, takes the deduction, and the payment is not added to your taxable wages.

The three IRS requirements

1. Business connection: the expense must have a genuine business purpose — a real home office, actual business miles, the business-use share of your phone.
2. Substantiation: you must document each expense with records — receipts, a mileage log, a home office calculation — submitted to the business within a reasonable time.
3. Return of excess: if the business advances you money, you must return any amount above your actual documented expenses within a reasonable time.

Meet all three and reimbursements are excluded from your income. Fail them — pay yourself a round 'expense allowance' with no documentation — and the payments can be reclassified as taxable wages, defeating the entire purpose.

What you can run through it

How to set it up

• Adopt a written accountable-plan policy for the business — a short document stating the plan follows the IRS requirements.
• Submit an expense report to the company periodically (monthly or quarterly) with the calculations and backup.
• Have the business cut you a reimbursement check for the documented total — separate from your payroll, clearly labeled as reimbursement.
• Keep the records with the business books. The reimbursement is only as strong as the substantiation behind it.

The bottom line

For S-corp owners, an accountable plan is not optional bookkeeping nicety — it is the correct, and often the only clean, way to recover home office, mileage, phone, and similar business costs you pay personally. Adopt a written policy, document real expenses with receipts and logs, reimburse the actual amounts, and the money moves out of the company tax-free and deductible. Because this sits at the intersection of payroll, entity rules, and substantiation, set the plan up with a CPA and let them confirm your reimbursements are structured correctly.