State Capital Gains Tax Rates in 2026

There is no single state capital-gains rate. Most states tax net capital gains through their individual income-tax systems, while a few have no broad individual income tax and Washington applies a separate tax to certain long-term gains.

Top-rate lists are easy to misuse because brackets, deductions, surtaxes, local tax, asset exceptions, and residency rules determine the actual result.

Selected 2026 State Treatments

| Jurisdiction | General treatment to verify for 2026 | |---|---| | Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Wyoming | No broad state individual income tax on investment capital gains. | | Washington | No broad wage income tax; a separate tax applies to certain net long-term capital gains after an indexed deduction, with exclusions and rate tiers. | | California | Capital gains are taxed as ordinary income. The regular top individual rate is 12.3%, and a 1% Behavioral Health Services Tax applies to taxable income over $1 million, producing a 13.3% top marginal rate on that income—not 14.4%. | | New York | Capital gains generally enter state taxable income; the top state rate is 10.9%, and New York City residents can also face city income tax. | | Massachusetts | Most long-term capital gains are generally taxed at 5%; short-term gains at 8.5%. A 4% surtax applies above the indexed taxable-income threshold, which is $1,107,750 for 2026. |

This is not a complete 50-state rate table. State rules change during legislative sessions, so verify the official instructions for the taxpayer's filing state before trading.

How a State Rate Changes a Harvest

Suppose a $20,000 long-term capital loss offsets a $20,000 long-term gain.

In a state with no tax on the gain, there may be no current state-tax effect.
At a 5% state rate, the simplified current state-tax reduction may be $1,000.
In a graduated-rate state, only the part of the gain in the relevant bracket receives that marginal rate.

The loss has been consumed and the replacement can create future gain. The calculation is current deferral, not a guaranteed permanent saving.

Federal and State Netting Can Differ

Some states begin with federal adjusted gross income; others make their own modifications. Carryforward periods, loss limitations, source rules, and treatment of specific assets can differ.

Do not assume a loss allowed federally produces the same state result in the same year.

Residency and Source Need Legal Facts

Moving before a sale does not automatically end tax exposure in the former state. Domicile, statutory residency, part-year allocation, business situs, and source rules can matter. High-tax states may examine where the taxpayer actually lived and maintained connections.

Establish residency for real life reasons and document it accurately. A large planned sale deserves state-specific professional advice before the transaction.

Washington Is a Special Case

Washington's capital-gains tax has an indexed standard deduction, asset exclusions, and separate rate tiers. The deduction changes annually, so use the Department of Revenue's current calculator or instructions rather than copying a prior-year threshold.

Build a State-Aware Review

Identify every state return the household may file.
Classify the gain and its source.
Confirm state carryforwards separately from federal carryforwards.
Apply local tax and surtaxes where relevant.
Model the sale date around genuine residency facts.
Recheck official instructions immediately before execution.

For federal brackets, read capital-gains tax rates for 2026. For NIIT, see the 2026 NIIT guide.

Bottom Line

State tax can materially change a capital-gain or loss decision, but a top-rate chart is not a return calculation. Use the taxpayer's actual bracket, state loss rules, residency, and official 2026 instructions.