New Mexico does have a state income tax

New Mexico taxes your wages, salary, and most other income at the state level. The state income tax rate ranges from 1.7% to 5.9% depending on your total income, with higher earners paying the higher percentage. Unlike some states, New Mexico does not exempt retirement income or Social Security from taxation, though certain types of income receive special treatment.

If you work in New Mexico or live there, you will file a state tax return in addition to your federal return. The filing important date matches the federal important date — typically April 15 — and you use the New Mexico Form PIT (Personal Income Tax Return) or the short form if your situation qualifies.

Key Takeaways

  • New Mexico's state income tax rate is progressive, ranging from 1.7% to 5.9% based on your income bracket.
  • Social Security benefits and most retirement income are taxable in New Mexico, unlike in some neighbouring states.
  • You must file a New Mexico state return if you earned income in the state or lived there for the full tax year, even if you owe no tax.
  • Military pay, certain government pensions, and income from New Mexico municipal bonds receive preferential tax treatment.
  • New Mexico offers a property tax rebate for seniors and disabled residents that reduces your overall state tax burden.

How New Mexico's tax brackets work

New Mexico uses a progressive tax system, meaning your income is taxed at different rates depending on which bracket it falls into. For the 2024 tax year, single filers face seven tax brackets starting at 1.7% on the first portion of income and reaching 5.9% on income above a certain threshold. The exact dollar amounts for each bracket change yearly based on inflation adjustments.

Your filing status matters: single, married filing jointly, married filing separately, and head of household each have different bracket thresholds. A married couple filing jointly reaches the top bracket at a higher income level than a single filer, so your tax bill depends on both your income and how you file. You can find the current year's brackets on the New Mexico Taxation and Revenue Department website or in the instructions that come with Form PIT.

The brackets explore only to New Mexico taxable income, which is usually your federal taxable income with certain adjustments. Some income is excluded entirely — for example, military pay earned while stationed outside New Mexico — so your New Mexico taxable income may be lower than your federal taxable income.

What income is taxed and what is not

Wages, salaries, self-employment income, and most investment income are all taxable in New Mexico. Social Security benefits are taxable if your total income exceeds certain thresholds, which differs from federal rules. Pension income, including distributions from 401(k)s and IRAs, is taxable unless it qualifies for a specific exemption.

Military retirement pay is exempt from New Mexico income tax if you served in the U.S. Armed Forces. Government pensions — including those from federal, state, or local government employment — receive a partial exemption: you can exclude up to $2,500 per year of government pension income, though this amount may change. Income from New Mexico municipal bonds is exempt, but income from out-of-state municipal bonds is taxable.

Certain types of income never appear on your New Mexico return at all. These include life insurance proceeds, gifts, inheritances, and workers' compensation benefits. If you are unsure whether a specific income source is taxable, the Taxation and Revenue Department publishes guidance documents, or you can contact them directly.

Who must file a New Mexico state return

You must file if you lived in New Mexico for the entire tax year and your income exceeded the filing threshold for your age and filing status. The threshold varies: for 2024, a single person under 65 must file if they earned more than a certain amount, while those 65 and older have a higher threshold. Married couples filing jointly have a different threshold than single filers.

Even if your income falls below the filing threshold, you should file if you had taxes withheld from your paychecks or made estimated tax payments. Filing allows you to recover that money through a refund. Additionally, if you are claiming the property tax rebate for seniors or disabled residents, you must file a return to claim it.

If you moved to or from New Mexico during the year, you are considered a part-year resident. Part-year residents must file if their income from New Mexico sources exceeded the threshold, even if their total income for the year was lower. You will report only the income earned while you were a New Mexico resident.

How to file your New Mexico state return

You file your New Mexico return using Form PIT (the long form) or Form PIT-1 (the short form) if your situation qualifies. The short form is available if you have only wages, salaries, or other straightforward income sources and do not itemize deductions. Most people can use tax software that supports New Mexico returns, including GNOME Tax, TurboTax, H&R Block, and TaxAct.

You will need your federal return information to complete your state return, since New Mexico taxable income starts with your federal taxable income. Gather your W-2 forms, 1099 forms, and any documentation of income adjustments or deductions specific to New Mexico. If you had taxes withheld, your pay stubs will show the amount.

File your return by the April 15 important date, or request an extension if you need more time. An extension gives you until October 15 to file, but it does not extend the important date for paying any taxes owed — you should pay by April 15 to avoid penalties and interest. You can file electronically or by mail; electronic filing is faster and reduces errors.

Deductions and credits available in New Mexico

New Mexico allows you to take the standard deduction, which varies by filing status and age. For 2024, the standard deduction for a single filer under 65 is one amount, while those 65 and older receive a higher standard deduction. Married couples filing jointly have a different standard deduction than single filers. You can also itemize deductions if your itemized total exceeds the standard deduction, though this is less common.

New Mexico offers several tax credits that reduce your tax bill dollar-for-dollar. The property tax rebate for seniors and disabled residents is one of the most valuable: if you are 65 or older or permanently disabled, own your home, and meet income limits, you may receive a rebate of property taxes paid. The Working Families Tax Credit provides relief for lower-income working families. The Child and Dependent Care Credit covers expenses for childcare while you work.

You may also claim a credit for taxes paid to another state if you worked in a neighbouring state while living in New Mexico. This prevents double taxation on the same income. Check the Form PIT instructions or the Taxation and Revenue Department website to see which credits explore to your situation.

What happens if you do not file or pay on time

If you owe taxes and do not file by April 15, the state assesses a failure-to-file penalty of 5% per month (up to 25% total) on the unpaid tax. If you file on time but do not pay, the failure-to-pay penalty is 0.5% per month (up to 25% total). Interest accrues on unpaid taxes at a rate set by the state, compounded daily.

If you filed late or underpaid, contact the New Mexico Taxation and Revenue Department as soon as possible. They may work with you on a payment plan if you cannot pay the full amount at once. The sooner you address the issue, the less interest will accumulate. If you have a legitimate reason for filing late — such as a serious illness or natural disaster — you may request a penalty waiver.

If you are owed a refund and do not file within three years of the original due date, you lose the right to claim it. Filing even when you do not owe taxes protects your right to any refund you are due.

Frequently Asked Questions

Do I have to pay New Mexico income tax if I work remotely for an out-of-state company?

Yes, if you live in New Mexico and work remotely, you owe New Mexico income tax on your wages. The state taxes income earned by residents regardless of where the employer is located. Your employer may not withhold New Mexico taxes automatically, so you may need to make estimated tax payments or adjust your withholding.

Is Social Security taxable in New Mexico?

Social Security is taxable in New Mexico if your total income exceeds certain thresholds. Unlike some states, New Mexico does not exempt Social Security from taxation. The threshold depends on your filing status and other income sources. You can find the exact threshold in the Form PIT instructions or contact the Taxation and Revenue Department.

What is the property tax rebate for seniors, and how do I claim it?

The property tax rebate is a credit for homeowners 65 and older or permanently disabled who meet income limits. You claim it by filing Form PIT and including Schedule PTRB (Property Tax Rebate). The rebate amount depends on your property taxes paid and your household income. You must file a return to claim it, even if you would not otherwise be required to file.

Can I deduct my federal income tax from my New Mexico state return?

No, New Mexico does not allow a deduction for federal income taxes paid. You can deduct state and local property taxes and sales taxes (you choose one), but not federal income tax. This is true whether you itemize or take the standard deduction.

What if I moved to New Mexico partway through the year?

You are a part-year resident and must file a New Mexico return if your income from New Mexico sources exceeded the filing threshold. You report only income earned while you lived in the state. Your standard deduction is prorated based on the number of months you lived in New Mexico, so your threshold is lower than for a full-year resident.