New Mexico has a state income tax

New Mexico taxes wages, salaries, and other income earned by residents and part-year residents. The state uses a progressive tax system, meaning the rate increases as your income increases. Tax rates range from 1.7% on the lowest bracket to 5.9% on the highest, depending on your filing status and total income.

If you work in New Mexico or live there for part of the year, you may owe state income tax even if you also pay federal income tax. The state taxes both earned income (wages, self-employment) and unearned income (interest, dividends, capital gains). Some types of income are exempt — notably Social Security benefits and certain retirement distributions — but most work income is taxable.

Key Takeaways

  • New Mexico state income tax rates run from 1.7% to 5.9% depending on your income level and filing status.
  • You owe New Mexico income tax if you are a resident, part-year resident, or nonresident who earned income in the state.
  • Social Security benefits are not taxed by New Mexico, but wages, self-employment income, and most retirement distributions are.
  • The New Mexico Taxation and Revenue Department processes state income tax returns, separate from your federal return.

Tax rates by income bracket and filing status

New Mexico's tax brackets change each year based on inflation. For the 2024 tax year, rates for single filers start at 1.7% on income up to roughly $5,900 and reach 5.9% on income over roughly $210,000. Married couples filing jointly have higher bracket thresholds, so the same income is taxed at a lower rate. Head of household filers fall between single and married rates.

The state publishes updated brackets each January on the New Mexico Taxation and Revenue Department website. Because brackets shift annually, your tax bill for the same income can change from year to year. You can find the current year's brackets in the department's tax forms and instructions, or call their taxpayer assistance line at 505-827-0700.

Who must file a New Mexico state return

You must file if you are a New Mexico resident or part-year resident and your income exceeds the filing threshold for your status. The threshold varies by age and filing status. Generally, single filers under 65 must file if their income is above the standard deduction for that year (roughly $6,500 for 2024, but this changes). Residents over 65 have a higher threshold. Married couples filing jointly have a combined threshold.

Part-year residents — people who moved to or from New Mexico during the tax year — must file if they had income while living in the state, even if their total annual income is below the threshold. Nonresidents who earned income in New Mexico (such as from a job or rental property) may also owe tax on that income. The New Mexico Taxation and Revenue Department can tell you whether you must file based on your specific situation.

Income that is and is not taxed

Wages, salaries, tips, and self-employment income are all taxed by New Mexico. Interest and dividend income are taxed. Capital gains from selling investments are taxed. Distributions from traditional IRAs and 401(k)s are taxed as ordinary income. Unemployment benefits are taxed. However, Social Security benefits are not taxed by New Mexico, regardless of your total income.

Certain retirement income has special treatment. Military retirement pay is exempt. Distributions from Roth IRAs are not taxed (because you already paid tax on the money going in). Some pension income may be exempt if you meet age and service requirements — this varies by the type of pension. Gifts and inheritances are not taxed. If you receive income from multiple sources, check the New Mexico Taxation and Revenue Department's guidance on your specific type of income, because the rules are detailed and exceptions exist.

How to file your New Mexico state return

You file a separate New Mexico state return in addition to your federal return. The state uses its own forms: Form PIT (Personal Income Tax Return) for most residents. You can file on paper by mailing the form to the New Mexico Taxation and Revenue Department, or you can file electronically through the state's online system or through tax software that supports New Mexico returns.

The filing deadline is the same as the federal deadline — usually April 15. If you file your federal return and request an extension, the extension applies to your New Mexico return as well. You can file early; the state begins accepting returns in late January or early February each year. If you owe tax, you can pay online, by mail, or through an installment plan. If you expect a refund, filing electronically speeds up the refund process.

Deductions and credits available to New Mexico residents

New Mexico allows a standard deduction similar to the federal standard deduction, or you can itemize deductions if they exceed the standard amount. The standard deduction varies by age and filing status and is adjusted each year for inflation. You can deduct state and local taxes (SALT) up to $12,500 per year, a state-specific limit that is separate from the federal SALT cap.

The state also offers tax credits for certain situations. A working families tax credit is available to lower-income workers. A dependent care credit helps offset childcare costs. A property tax credit is available to homeowners and renters with limited income. A solar energy credit is available if you install solar equipment. Credits reduce your tax bill dollar-for-dollar, so they are more valuable than deductions. The New Mexico Taxation and Revenue Department publishes a full list of available credits with income limits and requirements on its website.

What happens if you do not file or pay

If you owe New Mexico income tax and do not file or pay, the state can assess penalties and interest. A failure-to-file penalty is typically 5% of the unpaid tax per month, up to 25%. A failure-to-pay penalty is 0.5% per month. Interest accrues daily at a rate set by the state (currently around 8% annually, but this changes). These charges compound, so the longer you wait, the more you owe.

The New Mexico Taxation and Revenue Department can place a lien on your property, garnish your wages, or intercept your state tax refund to cover unpaid taxes. If you cannot pay in full, you can request a payment plan or an offer in compromise (settling for less than you owe). Contact the department's collections unit to discuss your options. Filing late is better than not filing at all, because it stops the failure-to-file penalty from growing.

Frequently Asked Questions

Do I have to pay New Mexico income tax if I work remotely for a company outside the state?

Yes, if you are a New Mexico resident, you owe state income tax on all income you earn, regardless of where your employer is located. The state taxes residents on worldwide income. If you are a nonresident who works remotely for a New Mexico company, you generally do not owe New Mexico tax on that income, but the rules are complex and depend on where you live and work.

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

No, you cannot deduct federal income tax paid. However, you can deduct state and local taxes (SALT) up to $12,500 per year on your New Mexico return. This includes state income tax you paid in previous years, property taxes, and sales taxes. You choose whether to take the standard deduction or itemize, depending on which gives you a larger 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 for the months you lived in the state. You report only the income you earned while living in New Mexico. You will also file a return in your former state for the months you lived there. Both states will tax the income earned during your residency in each state. The New Mexico form includes a part-year resident schedule to calculate your tax correctly.

Is New Mexico income tax withheld from my paycheck automatically?

Yes, if you work for an employer in New Mexico, they should withhold state income tax from your paycheck. You complete a W-4 form (or New Mexico equivalent) to tell your employer how much to withhold. If too much is withheld, you get a refund when you file. If too little is withheld, you owe when you file. Self-employed people must pay estimated tax quarterly to avoid penalties.

Do military members stationed in New Mexico have to pay state income tax?

Military members stationed in New Mexico do not owe New Mexico income tax on their military pay, even if they are residents. However, they do owe tax on any non-military income, such as a spouse's wages or side income. Military retirement pay is also exempt from New Mexico tax. Active duty members should ensure their employer is not withholding New Mexico tax on military pay and can request a refund if it was.