New Mexico Stocks Capital Gains Tax 2026: Graduated income tax (top rate up to 5.9%)

New Mexico Stocks capital gains in this model: Graduated income tax (top rate up to 5.9%). Use this calculator to stack federal long-term or short-term tax, NIIT when it applies, and New Mexico's modeled treatment.

Rates last verified: August 2026

Capital Gains Calculator

Federal · NIIT · All 50 states

2026 ratesIRS verified

Follow the three steps, save the sale, then calculate. Required fields are marked with *.

Your tax profile

These apply to every sale in this estimate.

Tax year

Filing status

State

Annual taxable income (before these gains)

Capital loss carried from prior years

What you sold

Prices and quantity for this lot. Give it a name if you will add more than one sale.

Asset type

Asset name

Buy price

Sell price

Quantity / units

Selling expenses

Repurchased within 30 days (wash-sale check)

When you bought and sold

The IRS uses these dates to decide short-term vs long-term rates.

Buy date

Sell date

Next: Save this sale to the order log, then click Calculate now. Tax results do not update until you calculate.

Order log

Sales included in this tax estimate.

Please fill in the details to see your results. Follow the three steps on the left, then save a sale here.

New Mexico tax on stocks and ETFs

New Mexico generally taxes stocks and ETFs gains under its graduated income-tax framework (Graduated income tax (top rate up to 5.9%)). This estimate applies the top modeled New Mexico rate to remaining taxable gain.

Federal rules for stocks and ETFs: Broker sales generally report on Form 1099-B and flow to Form 8949 and Schedule D. Wash-sale disallowance can apply if you repurchase a substantially identical security within 30 days. Holding period still matters for LTCG vs STCG except where a longer QSBS or real-estate test applies.

Open the parent New Mexico calculator for a generic sale, or the national Stocks lander for asset-only copy. Nearby states below keep the same stocks preset so you can compare residency. Estimates are not tax advice.

A stock or ETF loss can be disallowed if you buy the same or a substantially identical security inside the 30-day wash-sale window. This illustration does not turn that disallowance on.

New Mexico is modeled as graduated income tax with a top rate up to 5.9% on taxable capital gain. The tables use that top rate.

A taxpayer below New Mexico’s top bracket can owe less than 5.9% of the gain. The calculator does not look up the full New Mexico bracket table. It applies the encoded top rate for planning.

Rates last verified: August 2026. Official source: https://www.tax.newmexico.gov/.

New Mexico calculator Stocks (all states)U.S. Capital Gains Tax Calculator Wash-sale rule Short-term vs long-term

Illustrated tax on a long-term gain

Stocks held long enough for long-term treatment in New Mexico. Investment real estate does not use Section 121 in this table. QSBS uses a more-than-five-year hold.

Gain	Federal	NIIT	New Mexico	Texas state tax
$25,000.00	$3,750.00	$0.00	$1,475.00	$0.00
$100,000.00	$15,000.00	$0.00	$5,900.00	$0.00
$250,000.00	$37,500.00	$4,940.00	$14,750.00	$0.00

Single filer, tax year 2026, $80,000.00 of other taxable income. Texas is the no-tax comparison. Illustration only, not your return.

FAQ

New Mexico Stocks FAQs

How does New Mexico tax stocks and ETFs capital gains?

Do wash sales change a New Mexico stocks estimate?

Federally, a wash sale can disallow a securities loss. New Mexico then taxes remaining recognized gain under graduated income tax (top rate up to 5.9%). Mark the wash-sale checkbox if you replaced shares inside 30 days.

Which IRS forms apply to a New Mexico stocks sale?

Plan around Form 1099-B, Form 8949, and Schedule D. New Mexico may require its own income-tax return when the state line is not $0. NIIT, if any, is computed on Form 8960.

Does New Mexico tax stocks gains if I am a part-year resident?

This page assumes full-year New Mexico residency and applies graduated income tax (top rate up to 5.9%) to taxable stocks and ETFs gain. Part-year allocation and nonresident sourcing are not modeled — use New Mexico instructions or a CPA.

What does the New Mexico Stocks illustration assume?

The New Mexico Stocks rows use a single filer with $80,000 of other income and a long-term gain in 2026. A stock or ETF loss can be disallowed if you buy the same or a substantially identical security inside the 30-day wash-sale window. This illustration does not turn that disallowance on. Texas is the no-tax comparison, not a second residency.