V VestedGrant
Tax year 2026 · NM

New Mexico Capital gains in 2026

2026 federal long-term capital gains brackets, the 3.8% NIIT threshold, and New Mexico's preferential treatment of long-term gains.

The 2026 picture for New Mexico residents

In 2026, New Mexico residents paid federal ordinary income tax at brackets topping out at 37%, plus New Mexico state tax up to 5.9%, plus Medicare (1.45% + 0.9% additional above $200k single MAGI), plus a federal supplemental-withholding layer on RSU-style income.

2026 federal capital gains brackets

In $2026, federal long-term capital gains rates were 0% up to approximately $48,350, 15% up to approximately $533,400, and 20% above. The 3.8% NIIT added for MAGI above $200,000 single, producing a 23.8% top federal rate on long-term equity sales.

New Mexico treatment in 2026

New Mexico offered preferential treatment for long-term capital gains in 2026. The specific exclusion percentage depended on the state's statute; confirm the 2026 version before applying.

Frequently asked

What supplemental-wage withholding rate applied to RSU income in New Mexico in 2026?
The federal supplemental-wage withholding rate was 22% on the first $1,000,000 of supplemental wages per calendar year, rising to 37% above that. New Mexico state withholding ran up to 5.9% at the top bracket.
Did New Mexico recognize federal QSBS exclusion in 2026?
New Mexico's conformity status varies year by year and by type of taxpayer. As of 2026, most states other than California, New Jersey, Pennsylvania, and Mississippi either conformed fully or partially to Section 1202. Check the 2026 filing instructions for the specific language.
What was the top federal ordinary bracket in 2026, and how did it apply to New Mexico residents?
The 37% federal ordinary bracket started around $626,350 of taxable income for single filers in 2026. New Mexico stacked 5.9% on top of that for high earners, producing a combined top marginal rate of approximately 42.9%.

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