Mobile Notary Tax Deductions & SE Tax 2026

Last updated July 2026.

A self-employed mobile notary and loan signing agent writes off the ordinary costs of the business: mileage to signings, a home office, printer and toner, paper and supplies, the notary bond and E&O insurance, commission and stamp costs, background screening, and the business-use share of phone and internet. The rule that sets notaries apart from every other trade is the self-employment tax exemption: fees you earn for actual notarial acts are exempt from self-employment tax, while your travel, signing, and printing fees are not. Getting that split right is worth real money.

Are notary fees exempt from self-employment tax?

Yes, but only the fees for notarial acts. Under Internal Revenue Code section 1402(c)(2), fees you receive for services you perform as a notary public are not subject to self-employment tax. This is the single distinction that can save a busy signing agent hundreds or thousands of dollars a year. It does not exempt the income from income tax, and it does not cover the rest of what you charge. You still report all of it on Schedule C; you only remove the notarial-act portion from the self-employment tax calculation.

How do I claim the notary self-employment tax exemption on Schedule SE?

You report all of your notary business income and expenses on Schedule C as usual, then handle the exemption on Schedule SE. If you have other self-employment earnings of $400 or more, you write "Exempt, Notary" and the amount of your net profit from notarial acts on the dotted line to the left of Schedule SE, line 3, which subtracts it from the income the self-employment tax is figured on. Because of this, it is important to invoice notarial-act fees separately from travel and signing fees, so the exempt amount is documented and not just estimated at tax time.

Which mobile notary fees still owe self-employment tax?

Everything that is not a fee for performing a notarial act. Travel fees, print and scan fees, convenience or after-hours fees, and loan signing agent fees for handling and returning the document package are all subject to self-employment tax, because they are not payment for the notarization itself. For most mobile notaries and signing agents, these non-notarial fees are actually the larger share of revenue, so the exemption reduces but does not eliminate the self-employment tax. Keeping the two categories separate on every invoice is what makes the exemption defensible.

What is the business code for a notary on Schedule C?

Mobile notaries and loan signing agents use NAICS code 541120 (notaries public) in Box B of Schedule C. Some signing agents who also do document courier or preparation work will see 561410 (document preparation services) as a close alternative. Use 541120 if notarial work is the core of what you do. The code does not change your deductions, but it should reflect your real activity.

Can a mobile notary deduct mileage?

Yes, and it is usually the largest deduction. A mobile notary drives to clients constantly, so track every trip. You deduct either the standard mileage rate or your actual vehicle costs. The 2026 IRS standard mileage rate is 72.5 cents per business mile. Log the date, destination, and purpose of each signing, because the deduction is only as strong as the record behind it. Note that the mileage deduction lowers your taxable profit even though your travel fees are also subject to self-employment tax; the two are separate calculations.

What else can a mobile notary and signing agent write off?

The tools of the trade and the cost of staying commissioned. That includes the notary bond and errors-and-omissions insurance, your commission and renewal fees, stamps and embossers, a journal, a laser printer and toner (loan packages are long, and toner is a real recurring cost), paper, a mobile scanner, background screening and certification such as NNA, the business-use share of your phone and internet, and marketing to signing services. Many signing companies require proof of your coverage before assigning work, and keeping a current certificate of insurance on hand keeps you eligible for jobs. Each deduction needs a record showing amount, date, place, and business purpose.

Can a mobile notary deduct a home office?

Yes, if a part of your home is used regularly and exclusively for the business, which for a signing agent usually means the space where you print, assemble, and scan loan packages. The simplified method deducts $5 per square foot up to 300 square feet, a $1,500 maximum. The regular method deducts the business-use percentage of actual home costs. A dedicated printing and prep area qualifies; a laptop on the couch does not.

Do mobile notaries have to pay quarterly estimated taxes?

Usually, yes. If you expect to owe at least $1,000 in tax for the year, the IRS wants estimated payments in April, June, September, and January rather than one lump sum. Remember that you still owe income tax on your notarial fees even though they escape self-employment tax, and you owe both income and self-employment tax on your travel and signing fees. Setting aside a portion of every payment, and tracking deductions as you go, keeps the quarterly number honest and the April surprise small.

How should a mobile notary keep records for taxes?

Keep a mileage log, a digital copy of every receipt, and invoices that separate notarial-act fees from travel and signing fees. Photograph paper receipts, save emailed ones to a folder, and update category totals monthly. Then turn that into a categorized spreadsheet your preparer can use. A self-employed expense tracker that reads receipts and exports Schedule C categories does the data entry, and the receipt scanner for taxes workflow keeps the substantiation the IRS wants. Keep records at least three years from filing, longer if income was substantially understated.

None of this replaces advice from a tax professional who knows your numbers, but for notaries the payoff is unusually clear: separate your notarial fees from everything else, and you keep the self-employment tax exemption the law gives you.