New Mexico Mileage and Vehicle Tax Records (2026): Federal AGI, TNC Permits and Four-Year Trip Records, and Autonomous Vehicle Bills

General information, not tax or legal advice. Talk to your tax preparer or attorney about your situation.

New Mexico starts Form PIT-1 from federal adjusted gross income, so a self-employed driver's federal mileage deduction carries over. The 2016 TNC law requires a state permit, electronic receipts and trip records kept at least four years. A 2025 autonomous vehicle bill, HB 148, died in committee, so check NMDOT before planning robotaxi operations.

New Mexico follows your federal adjusted gross income, and its rideshare law asks companies to keep records longer than most states do. This guide covers what the New Mexico Taxation and Revenue Department, the Legislature and NMDOT say as of October 16, 2026.

The federal baseline every New Mexico driver starts from

Most vehicle deductions begin on your federal return. If you're self-employed, you can generally use the standard mileage rate or actual expenses for the business share of your car (IRS Topic 510). For 2026 the business rate is 72.5¢ per mile for January 1 to June 30 (IR-2025-128 / Notice 2026-10) and 76¢ per mile for July 1 to December 31 (IR-2026-29 / Announcement 2026-11) (IRS standard mileage rates). EVs use the same rates; see the 2026 EV mileage rate guide. Most employees can't deduct unreimbursed car expenses federally (Topic 510). IRS Publication 463 asks for each business trip's miles, date, destination and purpose, plus total miles. Commuting stays personal (commuting vs business miles).

How New Mexico treats vehicle deductions

The 2025 Form PIT-1 instructions have you enter federal adjusted gross income on line 9, so a Schedule C vehicle deduction, figured with the standard mileage rate or actual costs, is already reflected. Line 11 collects additions to federal adjusted gross income, figured on Schedule PIT-ADJ; the additions listed there don't include a depreciation item, so federal depreciation generally carries over; confirm with your preparer. If you itemized federally, line 10 adds back state and local income taxes. Ask your preparer about your own situation, especially if you took large first-year depreciation.

Depreciation and records

Because New Mexico starts from federal adjusted gross income, keep the federal Form 4562 and the mileage log behind it; they support both returns. See Form 4562 Part V vehicle records and robotaxi fleet depreciation and Section 179.

Rideshare (TNC) rules in New Mexico

As enacted in 2016, New Mexico's Transportation Network Company Services Act (HB 168) requires a TNC to hold a state permit, with an annual permit fee of $10,000. The act requires an electronic receipt within 24 hours of each trip, bans cash trips and requires the TNC to keep individual trip records for at least four years. NMDOT now publishes the list of permitted TNCs. Whatever the company keeps, save your own receipts and annual summaries. See which rideshare miles count. If you also drive in a neighboring state, see the Texas, Arizona and Colorado guides.

Robotaxis and autonomous vehicles in New Mexico

A 2025 bill, the Autonomous Vehicle Act (HB 148), was introduced on January 28, 2025. The Legislature's bill page shows it was referred to the House Transportation, Public Works and Capital Improvements Committee, postponed indefinitely and marked dead. For current rules on testing or deploying driverless vehicles, check with the New Mexico Department of Transportation or an attorney. For fleet records, see robotaxi fleet tax basics.

What to keep in your New Mexico records

Each business trip's date, start, destination, purpose and miles, plus total miles for the year (Pub 463); a weekly log counts as timely kept.
Separate Business, Commute and Personal totals for Form 4562 Part V.
Keep records until the period of limitations runs out, generally 3 years federally (IRS); ask your preparer about the state period.
Keep your federal Form 4562 and the mileage log behind it; New Mexico starts from the same federal AGI.
For rideshare: download ride receipts and annual summaries for your federal Schedule C.

For the full list of log fields, see what the IRS asks you to record.

Example: 1,000 hypothetical business miles driven in September 2026 × 76¢ (IR-2026-29) = $760 at the federal standard rate. Miles driven in March 2026 would use 72.5¢ (IR-2025-128) instead, so keep each trip's date. Estimates, not tax advice.

One log for both returns

A New Mexico return doesn't call for a second mileage log; your preparer works from the same business, commuting and personal miles. CyberDeduct builds a mileage log around IRS Pub 463 from your Tesla's own trip and odometer data (Model S, 3, X, Y and Cybertruck). You connect your Tesla account once through Tesla's standard account sign-in (OAuth); CyberDeduct never sees or stores your password. Home/work rules and route templates label most trips Business, Commute or Personal; you tap to change any label and confirm the purpose. The dashboard shows your business-use percentage and warns you on the 28th if you're under 50%. You export a PDF or CSV log plus a Form 4562 Part V worksheet for your preparer. See how the log is built or see plans.

Sources (checked October 16, 2026)

Frequently asked questions

Does New Mexico use my federal mileage deduction?

Generally yes for the self-employed. Form PIT-1 starts from federal adjusted gross income on line 9, which already reflects Schedule C vehicle expenses.

Does New Mexico add back vehicle depreciation?

The additions on Schedule PIT-ADJ don't list a separate vehicle depreciation item. Ask your preparer about your own return.

How long do New Mexico TNCs keep trip records?

At least four years, as enacted in the 2016 TNC law (HB 168).

Who lists permitted rideshare companies in New Mexico?

NMDOT publishes the list of permitted transportation network companies.

Is there an autonomous vehicle law in New Mexico?

The 2025 Autonomous Vehicle Act bill (HB 148) died in committee. Check with NMDOT or an attorney for current rules.

This article is general information, not tax or legal advice. Talk to your tax preparer or attorney about your situation. State laws and bill status change; check the linked sources for the current text.

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