New Mexico State Tax Extension
New Mexico Personal Tax ExtensionForm RPD-41096
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File Your Tax Return Now →New Mexico Personal Income Tax Extension – Federal Extension Required, Payment Penalties Waived
New Mexico grants a six-month extension for filing personal income tax returns to taxpayers with a valid federal extension through IRS Form 4868. The New Mexico Taxation & Revenue Department extends the filing deadline from April 15, 2026, to October 15, 2026. Notably, New Mexico waives late payment penalties during the extension period – though interest continues to accrue on any unpaid balance from April 15.
Late Payment Penalties Do Not Apply During Extension
New Mexico takes a taxpayer-friendly approach: failure-to-pay penalties are waived while the extension is in effect. If you can’t pay in full by April 15, you won’t face a payment penalty – but interest will still accrue from April 15 on any unpaid balance.
Pay 100% by April 15 to Avoid Interest
Even with payment penalties waived, interest on unpaid tax runs from the original April 15 due date. Paying your full New Mexico liability by April 15, 2026, is the only way to avoid all additional costs.
Using Form RPD-41096
Form RPD-41096 (Personal Income Tax Extension Payment) is used for mail-in extension payments. Online payments are accepted through TAP (Taxpayer Access Point) at tap.state.nm.us – e-check payments through TAP are free, while credit card payments carry a convenience fee.
State-Only Extension Option
If you have not filed a federal extension, New Mexico offers an automatic 60-day extension upon a timely initial state application. Extensions beyond 60 days require a written request. Form RPD-41096, attached with a copy of any prior state or federal extension, may be used to request additional time.
Late Filing and Payment Penalties
New Mexico’s failure-to-file penalty is 2% per month, capped at 20%. The failure-to-pay penalty is also 2% per month up to 20% – but this penalty is waived during the extension period. Interest on unpaid tax accrues from the original due date regardless of extension status. File by October 15 and pay what you can by April 15 to minimize interest.
Best Practices
- ✓File IRS Form 4868 by April 15 – New Mexico’s extension ties to federal approval.
- ✓Pay 100% of your New Mexico liability by April 15, 2026, to stop interest from accruing.
- ✓Use free e-check at TAP (tap.state.nm.us) to avoid convenience fees.
- ✓File your completed New Mexico return by October 15, 2026.
New Mexico’s extension is among the most taxpayer-friendly in the country – late payment penalties are waived, giving you flexibility if you can’t pay in full by April 15. Just know that interest keeps running, so paying as much as possible early saves money in the long run.
Quick Reference Table
| Item | Details |
|---|---|
| State Abbreviation | NM |
| Extension Status | Federal Required |
| Return Due Date | April 15, 2026 |
| Extended Due Date | October 15, 2026 |
| Payment Penalties | Waived during extension period – interest still accrues from April 15 |
| Online Payment | New Mexico | Taxpayer Access Point (TAP) – Online Payment |
| Payment Voucher | Form RPD-41096 | Personal Income Tax Extension Payment |
| State Payment Agency | New Mexico Taxation and Revenue Department |
| Failure to File Penalty | 2% of unpaid tax per month, up to 20% |
| Failure to Pay Penalty | 2% per month up to 20% – waived during extension; interest still accrues |
Extended? Your New Mexico Return Deadline Is Coming Up.
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File My Return Securely →New Mexico Extension Payment Options
Pay New Mexico tax owed by April 15, 2026, to stop interest from accruing. Use TAP (Taxpayer Access Point) at tap.state.nm.us for free e-check or card payment.
Pay via TAP – No Fee
Visit tap.state.nm.us and use e-check for a direct bank payment at no charge. Confirmation is immediate.
Pay by Card via TAP
Also available through tap.state.nm.us. A convenience fee is charged on credit and debit card transactions through TAP.
Mailing Address with Payment
P.O. Box 8390
Santa Fe, NM 87504-8390
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