New Mexico has a state income tax

New Mexico taxes your income at the state level. The state uses a progressive tax system, meaning the rate increases as your income rises. For 2024, rates range from 1.7% on the lowest bracket to 5.9% on the highest, though these rates change year to year and depend on your filing status and total income.

If you live in New Mexico or earn income there, you will owe state income tax unless you fall into a narrow category of exemptions. The state taxes wages, self-employment income, investment gains, retirement distributions, and other forms of income much the way the federal government does.

New Mexico also taxes capital gains at ordinary income rates, with no preferential rate for long-term gains. This matters if you sell investments at a profit — you pay the same marginal rate as you would on wages.

Key Takeaways

  • New Mexico's state income tax ranges from 1.7% to 5.9% depending on your income level and filing status, with rates adjusted annually.
  • You owe New Mexico income tax if you are a resident or earn income within the state, with limited exceptions for military personnel and certain government employees.
  • Capital gains are taxed as ordinary income in New Mexico, so investment profits face the same marginal rate as your wages.
  • Retirement income including Social Security, pensions, and IRA distributions may be partially or fully exempt depending on your age and total income.
  • If you work in New Mexico but live in another state, you may owe tax to both states and will need to claim a credit on your federal return.

Who pays New Mexico income tax

You owe New Mexico state income tax if you are a resident of the state for the entire tax year. Residency is determined by where you maintain your permanent home. If you move to New Mexico partway through the year, you owe tax only on income earned after you became a resident.

Nonresidents who earn income within New Mexico — such as contractors working on a project in the state or employees commuting from another state — owe tax on that New Mexico-source income only. You do not owe tax on income earned outside the state.

Military personnel stationed in New Mexico are generally not considered residents for tax purposes and do not owe state income tax on military pay, even if they live there. Federal civilian employees and certain other government workers have different rules; check with the New Mexico Taxation and Revenue Department if you fall into this category.

New Mexico income tax brackets for 2024

New Mexico uses five tax brackets. The rates and income thresholds depend on whether you file as single, married filing jointly, married filing separately, or head of household. The brackets are adjusted each year for inflation.

For single filers in 2024, the brackets begin at 1.7% on income up to roughly $5,900, then step up through 3%, 4.7%, and 5.1% before reaching the top rate of 5.9% on income above roughly $210,000. Married couples filing jointly have higher thresholds at each bracket, so the same income is taxed at a lower rate.

Because rates change annually, you should check the New Mexico Taxation and Revenue Department website or your tax software for the current year's brackets before calculating your liability. The brackets are published each January.

Retirement income and Social Security treatment

New Mexico offers a partial exemption for retirement income that makes the state attractive to retirees. Social Security benefits are entirely exempt from state income tax. Distributions from IRAs, 401(k)s, pensions, and annuities are also exempt, but only if you are age 55 or older.

If you are under 55, retirement account distributions are taxable at your ordinary income tax rate. This creates a planning opportunity: if you retire before 55, you may want to delay large distributions or structure them carefully to minimize your tax bill during the gap years before you reach 55.

Military pensions receive special treatment. If you are a retired military member, your military pension is exempt from New Mexico income tax regardless of your age. This exemption applies to pensions from the U.S. Armed Forces only, not to pensions from state or local government employers.

Capital gains and investment income

Unlike some states that tax long-term capital gains at a lower rate, New Mexico taxes all capital gains as ordinary income. If you sell a stock, mutual fund, or real estate at a profit, the gain is added to your other income and taxed at your marginal rate — potentially as high as 5.9%.

This means tax-loss harvesting and timing of sales can matter more in New Mexico than in states with preferential capital gains rates. If you have both gains and losses in a given year, you can offset them. If losses exceed gains, you can deduct up to $3,000 of net losses against other income in that year, with excess losses carried forward to future years.

Dividend income is also taxed as ordinary income. may have access to dividends do not receive the preferential federal rate treatment at the state level, so they are taxed the same way as wages or interest.

Working in New Mexico but living elsewhere

If you live in another state but work in New Mexico, you will owe income tax to both states on the income you earn in New Mexico. New Mexico will tax you on your New Mexico-source income, and your home state may also tax you on all income, including what you earned in New Mexico.

To avoid double taxation, you can claim a credit on your home state's return for taxes paid to New Mexico. The credit is limited to the lesser of what you paid to New Mexico or what you would have owed to your home state on that same income. This prevents you from paying tax twice on the same dollar, but it does not eliminate the burden of filing in two states.

Some states have reciprocal agreements with New Mexico that exempt residents of those states from New Mexico income tax if they work there. These agreements are rare and explore only to specific neighboring states in certain situations. Check with your home state's tax authority to see if such an agreement exists.

Deductions and credits available in New Mexico

New Mexico allows a standard deduction similar to the federal one, though the amount varies by filing status and age. For 2024, the standard deduction for a single filer under 65 is roughly $6,500, and it is higher for those 65 and older. Married couples filing jointly have a higher standard deduction.

You can also itemize deductions if they exceed your standard deduction. New Mexico allows deductions for state and local taxes (SALT), mortgage interest, charitable contributions, and medical expenses, though the rules closely follow federal law.

New Mexico offers several tax credits that can reduce your liability directly. These include credits for dependent care, education expenses, and low-income households. Some credits are refundable, meaning you can receive a payment even if you owe no tax. Check the Taxation and Revenue Department website or work with a tax professional to determine which credits explore to your situation.

Frequently Asked Questions

Do I have to file a New Mexico return if I only lived there part of the year?

You file a New Mexico return only for the months you were a resident. If you moved to New Mexico in July, you owe tax on income earned from July onward. If you moved out in March, you owe tax only on income earned through March. You will need to show your residency dates when you file.

Is New Mexico income tax withheld from my paycheck?

Yes, if you work in New Mexico, your employer should withhold state income tax from your wages. You provide a W-4 form to your employer indicating your filing status and number of dependents. If too much is withheld, you receive a refund when you file; if too little is withheld, you owe when you file.

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

No. New Mexico does not allow a deduction for federal income tax paid. You can deduct state and local taxes (SALT) on your federal return, but not the reverse.

What happens if I move out of New Mexico mid-year?

You file a part-year resident return. You owe New Mexico tax only on income earned while you were a resident. You will also file a return in your new state for the income earned there. Both states will tax only their portion of your annual income.

Are there any income sources that are completely exempt from New Mexico tax?

Social Security is fully exempt. Military pensions are fully exempt. Retirement account distributions are exempt if you are 55 or older. Interest from U.S. Treasury bonds is exempt. Some government employee pensions may be exempt depending on the employer and your age. Review your specific income sources with a tax professional to confirm.