Capital Gains Tax Calculator · New Mexico

New Mexico Capital Gains Tax Calculator 2026

A gain is taxed twice: federal capital gains rates, then New Mexico income tax on the same gain. This page shows both layers for 2026.

Data verified November 10, 2026 against official sources (see below).

Purchase Price

Sale Price

Other Taxable Income (after deductions)

Holding Period

Filing Status

Federal tax on gain

$4,500

1500.0% of the gain

New Mexico tax on gain

$1,470

Taxed as ordinary income

Net proceeds

$44,030

Sale price minus total tax on the gain

How New Mexico taxes this gain

New Mexico taxes capital gains as ordinary income, so the gain is stacked on top of your other income at New Mexico's regular rates. Some states exclude part of certain gains (for example from in-state businesses or farm assets); those exclusions are not modeled here.

On a $30,000 long-term gain with $75,000 of other taxable income, the New Mexico bill on the gain is about $1,470, on top of $4,500 federal.

Federal capital gains rates 2026

2026 long-term capital gains brackets by filing status (taxable income)
Filing status	0% rate up to	15% rate up to	20% above	3.8% NIIT above (MAGI)
Single	$49,450	$545,500	$545,500	$200,000
Married filing jointly	$98,900	$613,700	$613,700	$250,000
Married filing separately	$49,450	$306,850	$306,850	$125,000
Head of household	$66,200	$579,600	$579,600	$200,000

Short-term gains (held one year or less) are taxed as ordinary income at the 2026 federal brackets — up to 37% — with New Mexico income tax on top.

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Sources and how we calculate

Published by Financial Calculator. Editorial policy. Publisher attribution, not a claim of professional review.

New Mexico figures come from the state's published 2026 tax data (rolling verification recorded in our data files). State capital-gain exclusions for specific assets are not modeled.

Figures last checked on November 10, 2026. Read our calculation methodology for data sources and update schedule.

How We Calculate & Keep This Accurate

Short-term gains are taxed as the top slice of ordinary income: tax(income + gain) − tax(income) at federal ordinary rates. Long-term gains use the 0%/15%/20% preferential brackets stacked on ordinary taxable income, plus 3.8% NIIT when MAGI crosses the threshold. New Mexico tax on the gain is the same stacking method at state rates: state tax on (income + gain) minus state tax on income.

Published by Financial Calculator. Editorial policy. No named professional review is implied.

Primary Sources

Data & Freshness

Figures reflect 2026 tax-year data.

Last updated November 10, 2026 · Maintained by the Financial Calculator editorial team.

Read our calculation methodology.

New Mexico capital gains FAQs

Common questions about capital gains tax in New Mexico for 2026.

Does New Mexico tax capital gains?

Yes. New Mexico taxes capital gains as ordinary income at its regular rates. The gain stacks on top of your other income.

What is the long-term capital gains rate for 2026?

Long-term gains (assets held over a year) are taxed federally at 0%, 15% or 20% depending on taxable income: for a single filer the 0% rate applies up to $49,450 and the 15% rate up to $545,500. A 3.8% net investment income tax can apply above $200,000 MAGI (single).

Is it worth holding an asset longer than a year?

Usually yes. Short-term gains are taxed at your ordinary federal rates (up to 37%), while long-term gains use the lower 0%/15%/20% brackets. On the example above, holding long-term saves $2,100 in federal tax on this gain alone.