State Income Tax

Income Tax in New Mexico: Complete Guide 2026

Updated 2026-03-11

Data Notice: Figures, rates, and statistics cited in this article are based on the most recent available data at time of writing and may reflect projections or prior-year figures. Always verify current numbers with official sources before making financial, medical, or educational decisions.

Income Tax in New Mexico: Complete Guide 2026

Tax information is for educational purposes only and does not constitute tax advice. Consult a licensed tax professional for your specific situation.

New Mexico imposes a graduated individual income tax with four brackets and a top marginal rate of approximately ~5.9% on taxable income above ~$210,000 for single filers. The state has become increasingly retiree-friendly in recent years, fully exempting Social Security benefits and offering generous deductions for other retirement income. New Mexico uses federal adjusted gross income as its starting point, and the state allows both standard and itemized deductions. There are no local income taxes in New Mexico.

New Mexico Income Tax Rates (2026)

Single Filers

Taxable Income BracketMarginal Rate
$0 to ~$5,500~1.7%
~$5,501 to ~$11,000~3.2%
~$11,001 to ~$16,000~4.7%
Over ~$16,000 to ~$210,000~4.9%
Over ~$210,000~5.9%

Married Filing Jointly

Taxable Income BracketMarginal Rate
$0 to ~$8,000~1.7%
~$8,001 to ~$16,000~3.2%
~$16,001 to ~$24,000~4.7%
Over ~$24,000 to ~$315,000~4.9%
Over ~$315,000~5.9%

How New Mexico Income Tax Works

Federal AGI Starting Point

New Mexico begins with federal adjusted gross income and applies state-specific modifications. Additions are relatively rare; the most common subtractions include retirement income deductions and exempt interest from New Mexico municipal bonds.

Standard Deduction and Exemptions

  • Standard deduction: ~$14,600 for single filers; ~$29,200 for married filing jointly (conforms to federal amounts)
  • Personal exemption: Not separately available (incorporated into the standard deduction conformity)
  • Itemized deductions: New Mexico allows full federal itemized deductions
  • Low-income comprehensive tax rebate: A rebate for lower-income filers that effectively reduces tax liability

Key Exclusions

  • Social Security: Fully exempt from New Mexico income tax
  • Retirement income: Filers 65 and older with AGI below ~$100,000 (single) or ~$150,000 (joint) can deduct up to ~$8,000 per person of other retirement income
  • Military retirement: Exempt up to ~$30,000 per person
  • Capital gains deduction: New Mexico allows a deduction for a portion of net capital gains, approximately ~50% for gains from certain New Mexico transactions

Tax Credits

  1. Low-income comprehensive tax rebate: A refundable rebate based on filing status and number of exemptions for filers with modified gross income under ~$36,000
  2. Working families tax credit: ~25% of the federal EITC (refundable)
  3. Child income tax credit: ~$175 per child under 17 for qualifying families
  4. Renewable energy credits: For solar, geothermal, and sustainable building installations
  5. Angel investment credit: ~25% of investments in New Mexico startups, up to ~$62,500

Who Must File in New Mexico

Filing is required if:

  • You are a New Mexico resident required to file a federal return
  • You are a part-year resident or nonresident with New Mexico-source income
  • You want to claim refundable credits or rebates

New Mexico uses Form PIT-1 for all filers. The filing deadline is April 15.

Comparison to National Average

StateTop Income Tax RateStructure
New Mexico~5.9%Graduated (5 brackets)
Arizona~2.5%Flat
Colorado~4.4%Flat
Texas~0%No income tax
Oklahoma~4.75%Graduated
National average~4.60%Varies

New Mexico’s top rate is above the national average, but it only applies to income exceeding ~$210,000 for single filers. Most middle-income residents pay an effective rate well below ~5.0%, and the generous retirement income exemptions make the state particularly attractive for retirees.

Tips for Minimizing New Mexico Income Tax

  1. Claim the working families tax credit. At ~25% of the federal EITC, this refundable credit is among the most generous state EITCs in the country.

  2. Maximize retirement income deductions. Filers 65+ with qualifying AGI can deduct up to ~$8,000 per person of retirement income beyond Social Security.

  3. Apply for the low-income comprehensive tax rebate. This rebate benefits filers with modified gross income under ~$36,000 and is based on the number of exemptions claimed.

  4. Use the child income tax credit. Qualifying families receive ~$175 per child under 17, a relatively new credit that stacks with the federal child tax credit.

  5. Explore renewable energy credits. New Mexico offers credits for solar installations and sustainable building practices that can significantly reduce your state tax liability.

  6. Maximize retirement contributions. Pre-tax contributions to 401(k) and IRA accounts reduce your federal AGI, directly lowering your New Mexico starting income.

  7. Review the capital gains deduction. If you realize gains from qualifying New Mexico transactions, you may be eligible to deduct up to ~50% of net capital gains.

Key Takeaways

  • New Mexico imposes a graduated income tax with a top rate of ~5.9% on income above ~$210,000 (single filers)
  • Social Security is fully exempt, and retirement income deductions of up to ~$8,000 per person are available for filers 65+
  • The working families tax credit equals ~25% of the federal EITC, one of the highest state EITC rates
  • Military retirement is exempt up to ~$30,000 per person
  • No local income taxes are imposed in New Mexico
  • Renewable energy and angel investment credits provide additional savings opportunities

Next Steps