Taxes in New Mexico

This is the headline, and it holds up to scrutiny. New Mexico exempts Social Security benefits from state income tax for most retirees, based directly on income thresholds set by the state's own Taxation and Revenue Department. Single filers, married filing separately, and the various thresholds below all qualify for a full exemption on their Social Security benefits.

Roughly 86 percent of New Mexico seniors qualify for this exemption, and the average qualifying senior saves around $710 a year. If your household income sits above these thresholds, a partial exemption may still apply, and the calculation runs through the state's own provisional-income formula rather than a flat cutoff, so check the current year's PIT-1 instructions or talk to a preparer if you are near the line.

Military retirement pay is fully exempt from New Mexico state income tax, and active-duty military pay carries its own exemption as well. If part of your retirement plan involves continuing self-employment or part-time work, see the business section below, since that income is not covered by the Social Security exemption and is taxed as ordinary income.

New Mexico restructured its income tax brackets under House Bill 252, effective for tax year 2025 and continuing into 2026: six brackets running from 1.5 percent up to 5.9 percent, with the top rate applying only to income above $210,000 for a single filer. Because the system is progressive, most households land well below the top marginal rate in their actual effective rate. The full bracket breakdown lives on the Cost of Living page, since it applies to every household regardless of tax situation. What matters here is what is layered on top of those brackets for retirees, property owners, and the self-employed, which the rest of this page covers.

New Mexico's baseline property tax is already low by national standards, since the state taxes only one-third of a property's appraised value before applying the local mill rate. On top of that baseline, several exemptions and relief programs can lower the bill further, and most New Mexico homeowners qualify for at least one.

The Head of Family and Veteran exemptions are claimed directly through the Taos County Assessor's office, generally within 30 days of your annual notice of value. The Value Freeze and the senior rebate have their own separate applications and income recertification requirements. Since several of these programs stack, a senior veteran homeowner, for example, can often combine the Head of Family exemption, the veteran exemption, and the value freeze on the same property. Confirm current dollar amounts and income thresholds with the Taos County Assessor before assuming last year's figures still apply, since several of these numbers, especially the veteran exemption, have changed recently and continue to adjust for inflation.

New Mexico taxes most investment income, including interest, dividends, and capital gains, as ordinary income rather than at a separate, lower rate. There is a standard capital gains deduction of the greater of $1,000 or 40 percent of net capital gain income. If you sell a New Mexico-based business specifically, that deduction is more generous: the greater of $2,500 or 40 percent of up to $1 million in capital gain income from the sale. This matters directly for anyone planning to sell a Taos-based business, gallery, restaurant, or shop as part of a retirement or relocation plan, since the larger deduction only applies to that specific scenario, not to investment gains generally.

If you are moving to Taos to run a business, freelance, or work as an independent contractor, the low-tax reputation gets more complicated, because New Mexico requires almost anyone doing business in the state to register with the Taxation and Revenue Department, regardless of how small the operation is. This includes sole proprietors with no employees.

Registration gets you a Business Tax Identification Number, the modern name for what used to be called a CRS number, used to report gross receipts tax, compensating tax, and withholding tax. It is free to obtain, and a sole proprietor without employees can register using a Social Security number rather than a federal Employer Identification Number. The fastest path is the state's online Taxpayer Access Point. Once registered, the gross receipts tax applies to most goods and services sold from your business, at whatever combined rate applies to your specific location in Taos County. See the Cost of Living page for the exact rate breakdown by area, since it differs meaningfully between the Town of Taos and the surrounding county.

If you plan to hire anyone, you will also need a federal EIN and an Employer Account Number through the New Mexico Department of Workforce Solutions for unemployment insurance and workers' compensation purposes. None of this is unique to Taos specifically, it is statewide New Mexico business law, but it surprises a fair number of remote workers and creatives who assumed "low tax state" meant no registration obligations.

New Mexico has no traditional sales tax. Instead it levies a gross receipts tax on businesses, which gets passed to the buyer the same way a sales tax would. The rate varies meaningfully by exactly where in Taos County you are, from the lower county rate outside city limits to a noticeably higher rate inside the Town of Taos and at Taos Ski Valley. This rate matters whether you are a resident doing the buying or a business owner doing the selling. The full rate table by location, along with how it interacts with income and property tax to form the real cost-of-living picture, lives on the Cost of Living page.