New Mexico has a state income tax on wages, business income, and some retirement income

Yes, New Mexico charges a state income tax. The tax applies to residents and nonresidents who earn income within the state. Unlike some states, New Mexico taxes wages, self-employment income, investment gains, and certain retirement distributions. The tax rate depends on your income level and filing status — it ranges from 1.7% to 5.9% as of 2024, though rates can change year to year.

If you work in New Mexico or live there, you will owe state income tax unless you fall into a specific exemption category. The state also taxes business profits, rental income, and interest and dividends above certain thresholds. Retirement income has its own rules: Social Security is not taxed, but distributions from 401(k)s, IRAs, and pensions may be, depending on your age and total income.

Key Takeaways

  • New Mexico's state income tax rate ranges from 1.7% to 5.9% depending on your income bracket and filing status.
  • The tax applies to wages, self-employment income, investment income, and some retirement distributions, but not Social Security.
  • You must file a New Mexico state return if you lived in the state on the last day of the tax year, even if you also file federal taxes.
  • Certain groups, including military members stationed out of state and some retirees over 55, may be exempt from or have reduced liability for state income tax.

How New Mexico's tax brackets work

New Mexico uses a progressive tax system, meaning your tax rate increases as your income rises. You do not pay the highest rate on all your income — only on the portion that falls into each bracket. For the 2024 tax year, single filers face brackets starting at 1.7% on income up to roughly $5,900, then stepping up through several brackets until reaching 5.9% on income over roughly $210,000. Married couples filing jointly have higher bracket thresholds.

The exact dollar amounts for each bracket change annually based on inflation adjustments. The New Mexico Department of Revenue publishes updated brackets each year on its website. When you file your state return, you use the brackets for the year you are reporting — not the current year. This matters if you are filing a prior-year return or if tax law changed between when you earned the income and when you file.

What income is taxed and what is not

New Mexico taxes most forms of income: W-2 wages, self-employment earnings, rental income, capital gains, interest, and dividends. However, Social Security benefits are never taxed by the state, regardless of your total income. Military pay for active-duty service members stationed outside New Mexico is also exempt.

Retirement income rules are more complex. Distributions from traditional IRAs and 401(k)s are taxable unless you are over 55 and meet income limits — in that case, up to $2,500 per year of retirement income may be exempt. Pension income from New Mexico public employees is fully exempt. Distributions from Roth IRAs are not taxed. If you are unsure whether a specific income source is taxable, the Department of Revenue's website lists detailed rules, or you can contact them directly.

Filing requirements and important date

You must file a New Mexico state income tax return if you lived in the state on December 31 of the tax year and your income exceeds the filing threshold. The threshold varies by age and filing status — for 2024, a single person under 65 must file if their income was over roughly $12,200. If you are 65 or older, the threshold is higher. Even if you do not owe tax, filing may be worth doing if you had taxes withheld, because you could receive a refund.

The state important date matches the federal important date: April 15 of the following year. If you file your federal return late or request an extension, you should do the same for New Mexico. You can file by mail or electronically through the state's online system. The Department of Revenue also offers free tax preparation help through the Volunteer Income Tax information (VITA) program if your income is below a certain level.

Withholding and estimated tax payments

If you are an employee, your employer should withhold New Mexico state income tax from your paycheck if you live in the state. You provide a W-4 form to your employer to tell them how much to withhold. If you are self-employed or have income that is not subject to withholding, you may need to make quarterly estimated tax payments to avoid penalties. These are due April 15, June 15, September 15, and January 15.

To calculate how much to withhold or pay, use the New Mexico Department of Revenue's withholding calculator on its website, or work with a tax professional. If you under-withhold significantly, you may owe a penalty when you file your return. If you over-withhold, you will receive a refund. Adjusting your withholding mid-year is possible — you straightforward submit a new W-4 to your employer.

Tax credits and deductions specific to New Mexico

New Mexico offers several state-specific tax credits that can reduce what you owe. The Working Families Tax Credit is available to lower-income workers. The Earned Income Tax Credit (EITC) is a federal credit, but New Mexico also has its own version that can increase your refund. There is also a credit for dependent care expenses and a credit for contributions to education savings accounts.

On the deduction side, New Mexico allows you to deduct charitable contributions, medical expenses, and mortgage interest, similar to federal rules. However, the state does not allow a deduction for state and local taxes (SALT) paid. If you are over 55 and meet income limits, you may be able to deduct part of your retirement income. Review the Department of Revenue's publications or consult a tax professional to see which credits and deductions explore to your situation.

Nonresidents and part-year residents

If you moved to or from New Mexico during the year, you are a part-year resident and must file a New Mexico return for the portion of the year you lived there. You report only the income you earned while a resident. If you worked in New Mexico but lived elsewhere, you may owe New Mexico tax on that income even though you are not a resident — the state taxes income earned within its borders. However, you can claim a credit on your home state's return for taxes paid to New Mexico to avoid double taxation.

Military members stationed in New Mexico but whose home state is elsewhere do not owe New Mexico tax on military pay. However, they may owe tax on other income earned in the state. If you are unsure whether you must file, contact the Department of Revenue or consult a tax professional who knows your specific situation.

Frequently Asked Questions

Does New Mexico tax Social Security?

No. New Mexico does not tax Social Security benefits under any circumstances, regardless of your total income or filing status. This is one of the few income sources completely exempt from state tax.

What happens if I do not file a New Mexico return?

If you owe tax and do not file, the state can assess penalties and interest on the unpaid amount. If you had taxes withheld and do not file, you straightforward will not receive your refund. If you are unsure whether you must file, contact the Department of Revenue or review the filing threshold for your age and status on their website.

Can I deduct federal taxes paid from my New Mexico 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 on your federal return, but not on your state return.

Do I owe New Mexico tax if I work remotely for an out-of-state company?

If you live in New Mexico and work remotely for a company based elsewhere, you owe New Mexico tax on your wages. Your employer may not withhold it automatically, so you may need to make estimated payments or adjust your withholding if you have other income.

Is there a way to reduce my New Mexico state income tax?

Yes. You can claim available credits like the EITC or Working Families Tax Credit, deduct may be able to access expenses, and may support your withholding is correct so you do not overpay. If you are over 55, you may be able to exclude part of your retirement income. A tax professional can review your situation to find all credits and deductions you may be may have access to to.