New Mexico Retirement Taxes 2026: SS Cliff, Military Sunset

2026 edition · statute-cited · part of Clear Money Guide’s 51-state retirement tax series. This guide covers state taxes on retirement income and estate transfers; property and sales taxes vary by county and are outside its scope.

Updated July 24, 2026. Quick answer: New Mexico exempts Social Security for the overwhelming majority of retirees — the TY2022 reform makes benefits fully exempt when AGI is at or below $100,000 single / $150,000 joint — but taxes pensions, 401(k) and IRA withdrawals at graduated rates from 1.5% to 5.9% (bracket structure restructured for TY2025 by HB 252), softened by an $8,000 exemption at 65+ that phases out at moderate incomes (NMSA §7-2-5.2). Military retirement gets a $30,000 exemption — but under the enacted statute it applies only for tax years 2024 through 2026, making 2026 its final year unless the Legislature extends it (NMSA §7-2-5.11). And a genuine curiosity: reach age 100 with no dependents and New Mexico stops taxing you entirely (NMSA §7-2-5.7).

What the 2022–2025 reforms actually left in place

The Social Security exemption is the load-bearing fact — and its AGI test is a cliff worth planning around: at $100,001 single, the exemption is gone entirely — a hard cliff, not a phase-out (NMSA §7-2-5.15; the MFS limit is $75,000) — and federally taxable benefits flow into New Mexico income. The $8,000 65+ exemption applies against all income but phases out quickly; HB 252 (2024) restructured brackets downward for TY2025, lowering effective rates at low and middle incomes. And the military exemption needs a date-stamp most coverage lacks: several national sites describe the $30,000 exemption as applying “2024 and beyond,” but the enacted statute grants it only for tax years 2024–2026 (NMSA §7-2-5.11, incl. surviving spouses) — anyone planning a 2027-and-later move around it is planning around a provision scheduled to expire.

How New Mexico taxes retirement income (statute-cited)

Income tax	Graduated, 1.5% to 5.9% (TY2025 restructure, HB 252)
Social Security	Fully exempt if AGI ≤ $100,000 single / $150,000 MFJ (TY2022+); taxable to the federal extent above
Pension / 401(k) / IRA	Taxable; $8,000 exemption at 65+, phased out at moderate incomes (NMSA §7-2-5.2); age 100+ with no dependents: fully exempt (§7-2-5.7)
Military retirement	$30,000 exemption for TY2024–2026 only (NMSA §7-2-5.11; 2026 is the final year under current law), including surviving spouses
Estate / inheritance tax	None

Probate: reasonable fees and a $50,000 affidavit

New Mexico is a UPC state — reasonable compensation (NMSA 1978 §45-3-719), no percentage schedule. Small estates: up to $50,000 of personal property passes by collection affidavit (§45-3-1201) after a 30-day wait. Context: probate cost by state · small-estate limits by state.

Is New Mexico a good state to retire in for taxes?

Below the $100,000/$150,000 AGI lines, quite good: exempt Social Security, modest graduated rates, no death taxes, and cheap probate. Above the lines, the SS exemption vanishes at once — a cliff that makes Roth conversions and withdrawal sequencing unusually valuable here. Military retirees do well; large-drawdown portfolio retirees face the 5.9% top rate with little shelter. Against Arizona’s flat 2.5%, New Mexico wins mainly for lower-income retirees — run both before moving for taxes.

New Mexico vs. common alternatives

State	Social Security	Pension / 401(k) / IRA	Estate tax	Inheritance tax
New Mexico	Exempt below $100k/$150k AGI	Taxable; $8,000 exemption at 65+ (income-tested)	None	None
Arizona	Not taxed	Taxed at flat 2.5%; $2,500 gov-pension subtraction	None	None
Texas	Not taxed	Not taxed (no income tax)	None	None
Colorado	Not taxed at 65+; 55–64 AGI-tested	$20,000 (55–64) / $24,000 (65+) subtraction caps	None	None

Comparison rows summarize general rules; see our 51-state retirement tax table for statute-cited detail.

Considering a Roth conversion? The converted amount is taxed as ordinary income in the year you convert, and New Mexico may treat it differently from the retirement income above — see how all 51 jurisdictions tax Roth conversions.

Finding a financial advisor in New Mexico

Per the SEC’s July 2026 Investment Adviser roster, New Mexico has 26 SEC-registered advisory firms (#45 nationally) managing $65.9 billion (#39 by AUM). Full breakdown: New Mexico advisor statistics. Reviewing fee structures: fee-drag calculator.

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What probate costs in New Mexico

New Mexico sets probate compensation by a “reasonable fee” standard with no percentage schedule, so anyone quoting a firm figure is estimating. And the small-estate shortcut of $50,000 does not clear a solely owned house on its own, which is the detail most guidance omits. Full detail with the governing statute, the court filing fee and the threshold: New Mexico probate cost. To price a specific estate, use the probate cost calculator.

Cite or share this guide

Suggested citation: Clear Money Guide, “New Mexico Retirement Taxes (2026 edition),” statute-cited; clearmoneyguide.com/new-mexico-retirement-taxes/. Free to cite with attribution and a link. Data verified July 23–24, 2026 against state statutes, session laws, and revenue-department guidance.

New Mexico Retirement Taxes (2026): The Social Security Cliff — and the Military Exemption’s Final Year