# How to declare mileage on 2026 Income Tax Return > Complete guide to declare mileage reimbursement on 2026 Tax Return without errors or issues with Federal Revenue. **Author:** Marina Costa — Brazilian Tax & Compliance Specialist **Published:** 2025-11-15 **Updated:** 2026-06-13 **URL:** https://quilometragem.com/blog/how-to-declare-mileage-on-2026-income-tax-return **TL;DR:** Complete guide to declare mileage reimbursement on 2026 Tax Return without errors or issues with Federal Revenue. - Complete guide to declare mileage reimbursement on 2026 Tax Return without errors or issues with Federal Revenue. - Mileage declaration on 2026 Income Tax is mandatory for those receiving reimbursements for using personal vehicle for work. - First, understand that mileage reimbursement is not salary. - It should be reported in 'Exempt and Non-Taxable Income' form, line 26, as 'Other exempt income'. ## Why reporting mileage reimbursement matters Reporting mileage on your annual tax return is a step many taxpayers overlook. Even when reimbursement for using your personal vehicle for work is not taxable income, keeping your records consistent with what hit your bank account protects you if the IRS ever asks questions. Skipping this step is one of the most common mistakes. Bank deposits that do not match your filing are exactly the kind of inconsistency that triggers an audit. Reporting correctly protects you and demonstrates solid financial organization. ## Reimbursement is not salary: the difference that changes everything First, understand that mileage reimbursement is not salary. It simply returns a cost you incurred while using your car for the company's benefit. Under an accountable plan, a properly substantiated reimbursement is generally not treated as taxable wages. Confusing the two can lead to tax being applied to money that should be tax-free. This distinction is the foundation of your entire filing and must be clear before you begin entering numbers. ## How to substantiate the amount A reimbursement only stays tax-free when it is properly substantiated. That means documenting the business purpose, date, destination, and mileage of each trip, and returning any excess advance within a reasonable time under the plan rules. Record the total annual amount reimbursed and the paying company. If you received reimbursement from more than one employer, keep them separate. Precision here prevents follow-up questions and keeps the amounts clearly non-taxable. ## Documentation you need to keep Maintain complete documentation: a log of all trips, company payment records, and a consolidated annual report. Tax authorities can request proof, and missing records are what turn a routine review into a serious problem. Keep these documents for at least the standard statute of limitations period in which your return can be examined, which in most cases means several years after you file. Digital files organized by month, backed up in more than one place, make life much easier if any question arises later and spare you from hunting through a shoebox of faded paper receipts. ## Watch out for full business use of the vehicle If you use the vehicle entirely for business and deduct expenses as a sole proprietor or business entity, the treatment differs from an employee receiving a reimbursement. In those cases, deduction rules follow the standard mileage rate or actual expense method for your business. Mixing the two approaches can create double counting or disallowed deductions. Consult an accountant to confirm the correct treatment before filing. A small investment in guidance prevents far larger losses. ## The company's role in your income statement Employers should provide records that separate reimbursement amounts from wages. Under an accountable plan, qualifying reimbursements are not reported as taxable wages on your W-2, which is exactly why clear documentation matters. If your company has not provided this breakdown, request it before the filing deadline. Without it, you risk reporting incorrect figures or forgetting payments made throughout the year. ## How Quilometragem simplifies your filing Quilometragem generates complete annual reports that make this stage far easier. Every recorded trip is consolidated with date, origin, destination, distance, and amount, exactly the level of detail authorities value in case of review. Export the annual CSV and use it as the basis to complete your return or send to your accountant. Instead of reconstructing the whole year from memory, you start from a reliable history, generated automatically month after month. ## Get organized before the filing deadline In the United States, individual returns are typically due in mid-April. Those who wait until the last minute make data-entry errors, lose receipts, and lose track of amounts received, precisely what draws scrutiny. Start organizing your documentation now. Gather your records, confirm the breakdown from your employer, and generate the Quilometragem annual report. When filing time comes, you will only need to transcribe figures you have already validated, with no rush and no surprises. ## Frequently asked questions ### Where to declare mileage reimbursement on the 2026 IR? Reimbursements compatible with a reasonable rate table are treated as indemnity income and go in Exempt Income, code 26 — Others. ### Until when to declare? Regular filing runs from early March to late May 2026; late filings trigger a minimum BRL 165.74 fine. ### What documents do I need for filing? Individual receipts, consolidated annual report, bank payment proofs and the company policy that justifies the applied rate. ## Sources - [Receita Federal — Imposto sobre a Renda Pessoa Física (IRPF)](https://www.gov.br/receitafederal/pt-br/assuntos/meu-imposto-de-renda) — Receita Federal do Brasil (2026-04-28) - [Receita Federal — Rendimentos Isentos e Não Tributáveis](https://www.gov.br/receitafederal/pt-br) — Receita Federal do Brasil (2026-04-28)