How Do I Pay Myself Back for Business Expenses I Paid Personally?

By Bill Stilwell · Last reviewed October 17, 2026

The short answer

If you pay a business cost with your own money, the business can pay you back. Do it only with a receipt, a written business purpose, and a request turned in soon after you spend it. For owners who are also employees of their company, the Internal Revenue Service (IRS) has accountable plan rules that decide whether the payback is tax free or counted as wages. Ask your tax pro which rules fit your structure.

What this means

A reimbursement repays you for a business expense. It isn’t pay and it isn’t profit. It just evens things out.

The IRS describes an accountable plan as an arrangement with three requirements:

Business connection. The expense has a business purpose tied to the work.
Substantiation. The person documents the expense to the business within a reasonable time.
Return of excess. Any advance beyond the documented expense is returned within a reasonable time.

The IRS says payments that don’t meet these rules are treated as nonaccountable, which means they’re reported as wages and subject to withholding. This mostly matters when the owner is an employee of the business, like in an S corporation or C corporation.

How it works for a sole proprietor, or a single-member LLC taxed as one, is different, because there’s no separate payroll for the owner. Partnerships often set rules in the partnership agreement. That’s why your tax pro should set this up (see 10.1.2 Federal Tax Classification).

Made-up example: The owner of Brightline Window Washing, set up as an S corporation, buys a $180 ladder on her personal card at the hardware store. She photographs the receipt, writes “replacement ladder, crew 2,” and fills out the company’s reimbursement form that week. The business pays her back from the business account, and the ladder is recorded as an equipment expense.

Why it matters

Without receipts, a payback can look like income or an owner draw.
Late or vague requests can fail accountable plan rules and become taxable wages.
Mixed money weakens your records. It’s harder to prove what was really a business cost.
Limited liability can be questioned when owners treat business money as their own. Ask your attorney how this works in your state.

Who this applies to

Any owner who sometimes pays business costs personally. The tax treatment depends on whether you’re a sole proprietor, partner, LLC member, or shareholder employee.

How to do it

Use business cards and accounts first. Reimbursements should be the exception (see 10.4.5 Business Credit Card).
Ask your tax pro to set up a written reimbursement policy that fits your structure, including an accountable plan if it applies.
Save the receipt the same day (see 10.5.4 Receipt Storage).
Write the business purpose: what it was, which job, and why.
Fill out a reimbursement form with the date, amount, vendor, and purpose, with the receipt attached.
Turn it in on a set schedule, like weekly or monthly. Your tax pro can tell you what counts as a reasonable time.
Have someone else approve it when possible, or at least have a second owner sign off (see 10.6.8 Separation of Duties).
Pay from the business account by transfer or check, never in cash from the till.
Record the expense in the right account, not as an owner draw (see 10.6.6 Owner Draws).
Return any advance you didn’t spend.

What proof to keep

The written reimbursement policy
Each reimbursement form with the receipt and purpose
Approval for each request
The payment record from the business account

Common mistakes

Paying yourself back a round number without receipts.
Saving reimbursements up for a year and submitting them all at once.
Reimbursing personal costs like family meals or personal phone plans.
Recording a reimbursement as an owner draw or a draw as a reimbursement.
Paying the same expense twice, once from the business card and once as a reimbursement.

When to get help from a pro

A certified public accountant (CPA) or tax professional should set this up, because the rules depend on your business structure. Questions to ask:

Do I need an accountable plan for my business structure?
What counts as a reasonable time to submit receipts and return extra money?
How should I handle mileage or home office costs I pay personally?

Bill’s note

[Bill: add a short note. For example, how you handle the times you pay for a SiteSmarty expense personally, and the form or routine you use to get paid back.]

How I did this for SiteSmarty

[Date I did this:]
[What I actually did, step by step: the reimbursement policy my tax pro and I set up, and the form I use]
[What it cost and how long it took:]
[What surprised me or what I’d do differently:]
[Screenshot or photo to add, with private info blurred: a reimbursement form with the receipt attached]
[Result so far:]

Questions people ask

What is an accountable plan? An IRS arrangement for repaying business expenses. It requires a business purpose, documentation within a reasonable time, and returning any extra.

Do I need receipts to reimburse myself? Yes. Without them, the payment may not count as a reimbursement.

Is an owner reimbursement taxable? It can be tax free if it meets the rules that apply to your structure. If it doesn’t, it may be treated as wages or income. Ask your tax pro.

What’s the difference between a reimbursement and a draw? A reimbursement pays you back for a business expense. A draw is you taking business money for personal use.

Audit check

Question: Is every owner reimbursement backed by a receipt, a written business purpose, a timely request, and an approval, under a written policy set up with a tax pro?
Pass looks like: Written policy. Forms with receipts and purpose. Requests turned in on schedule. Paid from the business account. Recorded as expenses.
Fail looks like: Round-number paybacks. No receipts. Year-end lump sums. Personal costs reimbursed. Reimbursements mixed with draws.
Evidence to collect: The policy, the last five reimbursement forms with receipts, and the matching payments in the books.

Where this fits

Do this first: 10.6.3 Vendor Approval and Bank-Change Verification, 10.5.4 Receipt Storage

Do this next: 10.6.6 Owner Draws

Sources

IRS, "Nonresident aliens and the accountable plan rules" (states the three accountable plan requirements) (checked October 17, 2026)
IRS, Publication 463, "Travel, Gift, and Car Expenses" (checked October 17, 2026)
IRS, Publication 15, "Employer's Tax Guide" (checked October 17, 2026)
IRS, Publication 583, "Starting a Business and Keeping Records" (checked October 17, 2026)

This page explains general rules and Bill's own experience. It is not legal, tax, or insurance advice. Talk to a qualified professional about your situation.