New Mexico does tax retirement income for seniors, but several exemptions can reduce or wipe out the bill depending on what you receive and how much you earn. Social Security benefits come out fully for most retirees, military pensions get a flat $30,000 exclusion, and residents 65 or older can deduct up to $8,000 more of other retirement income if their income is low enough. Everything else, including distributions from traditional IRAs, 401(k)s, and state pensions, is taxed as ordinary income at New Mexico’s regular rates.
Social Security Benefits Are Exempt for Most Retirees
Starting with tax year 2022, New Mexico stopped taxing Social Security benefits for recipients whose adjusted gross income falls under the limit for their filing status.1NM Taxation & Revenue Department. Social Security Income Tax Exemption If you qualify, you deduct the full amount of Social Security income that appeared on your federal return. The exemption covers retirement, disability, and survivor benefits paid by the Social Security Administration.
The income ceilings are:
- Single filers: adjusted gross income under $100,000
- Married filing jointly, head of household, or surviving spouse: under $150,000
- Married filing separately: under $75,000
The exemption is all-or-nothing. Clear the threshold and your Social Security is fully deducted; go over it by a dollar and the benefits are taxed along with the rest of your income at New Mexico’s graduated rates.1NM Taxation & Revenue Department. Social Security Income Tax Exemption There is no partial exemption.
Military Retirement Pay: Up to $30,000 Excluded
Armed forces retirees can exclude up to $30,000 of military retirement pay from state income tax, with no cap on total adjusted gross income. A 2024 amendment made the $30,000 figure permanent by removing the earlier sunset provision and extended the exemption to surviving spouses of armed forces retirees for tax years beginning January 1, 2025.2Justia Law. New Mexico Code 7-2-5.13 – Exemption; Armed Forces Retirement Pay (Effective January 1, 2025)
The exemption applies only to retirement pay received from the Department of Defense based on years of service or service-connected disability.3Justia Law. New Mexico Code 7-2-5.13 – Exemption; Armed Forces Retirement Pay It stacks with the other retirement exemptions, so a 65-year-old veteran who also meets the income test for the senior exemption below can claim both on the same return.
The $8,000 Senior Exemption on Pensions, IRAs, and 401(k)s
Residents who are 65 or older, or blind for federal tax purposes, can claim up to $8,000 against retirement income beyond Social Security. The exemption covers private pensions, annuities, traditional IRA withdrawals, and 401(k) distributions.4Justia Law. New Mexico Code 7-2-5.2 – Exemption; Income of Persons Sixty-Five and Older or Blind It is separate from, and can be combined with, the Social Security deduction.
The income limits for this one are much tighter. The full $8,000 is available only to joint filers with adjusted gross income of $30,000 or less and single filers at $18,000 or less. The exemption phases down from there and vanishes entirely at $51,000 for joint filers and $28,500 for single filers. Married individuals filing separately hit the $15,000 line for the full amount.4Justia Law. New Mexico Code 7-2-5.2 – Exemption; Income of Persons Sixty-Five and Older or Blind
In practice this helps lower-income retirees most. If you draw from several sources, Social Security plus a pension plus IRA withdrawals, the combined total often pushes you past the phase-out before you can use much of the $8,000.
What About PERA, ERB, and Roth Accounts?
Pensions from the New Mexico Public Employees Retirement Association (PERA) and the Educational Retirement Board (ERB) are taxed as ordinary retirement income. There is no separate exemption for state or local government retirees.5Legal Information Institute. N.M. Admin. Code 3.3.11.13 – Retirement Income A PERA or ERB retiree who is 65 or older and under the income limits can apply the $8,000 senior exemption against that pension, but nothing more.4Justia Law. New Mexico Code 7-2-5.2 – Exemption; Income of Persons Sixty-Five and Older or Blind After-tax contributions you made to your plan (generally those made before July 1983) are not taxed again when distributed, since they were already included in your income when earned.
Qualified Roth IRA distributions are not taxed at the state level either, but for a different reason: they are excluded from federal adjusted gross income, which is where New Mexico starts its calculation. The exclusion carries over automatically, with no special state form to file. Traditional IRA and 401(k) distributions, by contrast, land in federal AGI and flow through as taxable income on your New Mexico return, where the $8,000 senior exemption is often the only offset available.
Extra Relief for Very Low Incomes and Centenarians
Any New Mexico resident with a low income, not just seniors, can claim a low-income exemption equal to $2,500 times the number of federal exemptions on the return. It is available to single filers with adjusted gross income up to $20,000 and joint filers up to $30,000, with reduced amounts further up the scale.6Justia Law. New Mexico Code 7-2-5.8 – Exemption for Low Income
Residents 100 or older pay no New Mexico income tax. All income is exempt, from every source, as long as the person is not claimed as a dependent on someone else’s return.7Justia Law. New Mexico Code 7-2-5.7 – Exemption; Income of Individuals One Hundred Years of Age or Older
Property Tax Valuation Freeze for Homeowners 65 and Older
Separate from income tax, New Mexico lets homeowners who are 65 or older (or disabled) freeze their home’s assessed value, so future valuation increases do not drive up the property tax bill. You qualify if your modified gross income for the prior year was $35,000 or less. You file the application with your county assessor within 30 days after the notice of valuation is mailed. After three consecutive years of qualifying, the freeze becomes permanent. The property has to be a single-family dwelling you own and occupy as your primary residence.8Justia Law. New Mexico Code 7-36-21.3 – Limitation on Increase in Value for Single-Family Dwellings Occupied by Low-Income Owners Who Are Sixty-Five Years of Age or Older or Disabled
A separate property tax rebate is available to residents 65 and older with very low incomes. Thresholds and rebate amounts are modest; the Taxation and Revenue Department or your county assessor can give you current figures.
How to Claim the Exemptions
Retirement exemptions are claimed on Schedule PIT-ADJ, the Schedule of Additions, Deductions, and Exemptions. Enter the qualifying amount for each exemption, Social Security, military retirement, senior, on its own line, and the total transfers to your PIT-1 personal income tax return.9NM Taxation & Revenue Department. Personal Income Tax Forms Keep your federal return in front of you while you work; several lines reference your federal adjusted gross income and the Social Security amount included on the federal return, and mismatches between the two returns slow processing.
You must be a New Mexico resident for the full tax year to claim these benefits. The deadline for tax year 2025 returns is April 15, 2026.9NM Taxation & Revenue Department. Personal Income Tax Forms