Alaska Capital Gains Tax Calculator (2026)

Alaska does not levy a state income tax, so residents keep more of their investment gains compared to most other states. This makes Alaska particularly attractive for investors with significant capital gains, as they pay only federal taxes on their profits.

However, federal taxes still apply in full. For long-term capital gains (assets held 12+ months), the federal rate is 0%, 15%, or 20% depending on your total taxable income. Short-term gains (held less than 12 months) are taxed at ordinary federal income tax rates of 10% to 37%. Additionally, the 3.8% Net Investment Income Tax (NIIT) applies if your modified adjusted gross income exceeds $200,000 (single) or $250,000 (married filing jointly).

While Alaska has no income tax, residents may still face other state taxes such as sales tax, property tax, or excise taxes that affect overall cost of living. It is important to consider your full tax picture — not just income tax — when evaluating the overall tax burden of living in Alaska.

**Recent legislative changes:** No income tax changes 2024-2026 — Alaska has never had a state individual income tax (repealed in 1980). New Hampshire repealed its interest and dividends tax effective 2025, joining Alaska among states with zero individual income tax

**Regional comparison:** Alaska has no income tax, making it far more favorable than neighboring Canada's British Columbia; among US states, Washington also has no income tax but levies a 7% capital gains excise tax on gains over $270,000.

**National tax landscape:** Across the United States, state capital gains tax treatment varies dramatically. Nine states impose no income tax at all, while states like California (13.3%), New York (10.9%), and New Jersey (10.75%) levy the highest rates. The majority of states tax capital gains as ordinary income with no preferential rate, though some — such as North Dakota, South Carolina, and Wisconsin — offer partial exclusions on long-term gains that reduce the effective rate below the headline income tax rate.

Compare your tax situation with neighboring states: Washington capital gains tax calculator, Hawaii capital gains tax calculator, 401(k) retirement calculator.

Understanding how federal and Alaska taxes combine helps you plan investment sales strategically.

**Example 1: $50,000 long-term gain on $80,000 salary (single filer).** At the federal level, this gain falls primarily in the 15% long-term bracket. With Alaska's 0% state rate, your total tax is limited to the federal amount — a significant advantage over high-tax states.

**Example 2: $200,000 long-term gain on $250,000 salary (married filing jointly).** Higher income pushes more of the gain into the 15% and potentially 20% federal bracket. The 3.8% NIIT also applies since MAGI exceeds $250,000. Alaska residents avoid the additional state layer, keeping the combined rate below 27%.

**Example 3: Short-term gain of $30,000 on $60,000 salary (single filer).** Short-term gains are taxed as ordinary income at federal rates of 10-37%. For a single filer with $60,000 of ordinary income plus a $30,000 short-term gain, the gain is taxed at the 22% federal marginal rate. Alaska's zero state rate means the total tax on this gain is limited to the federal amount — roughly $6,600. In a state like California, the same gain would also incur up to 13.3% in state tax.

Use our Alaska after-tax income calculator to see how your salary income is taxed alongside these investment gains.

Strategic timing and planning can significantly reduce your capital gains tax liability in Alaska.

**Hold investments for 12+ months.** The difference between short-term (up to 37% federal) and long-term (0-20% federal) rates is substantial. A $100,000 gain taxed at short-term rates could cost $15,000-$20,000 more than the same gain held long-term.

**Harvest losses to offset gains.** Selling underperforming investments to generate capital losses can offset your gains dollar-for-dollar, reducing your taxable gain. You can also deduct up to $3,000 in net losses against ordinary income annually.

**Leverage Alaska's no-tax advantage.** Since Alaska charges no state income tax on capital gains, the only optimization needed is at the federal level. This makes Alaska an especially favorable state for investors with large portfolio turnover or real estate sales.

**Use the Section 121 primary residence exclusion.** If you are selling your primary home, you may exclude up to $250,000 (single) or $500,000 (married filing jointly) of capital gains from federal tax. You must have owned and lived in the home for at least two of the past five years. This exclusion is separate from investment capital gains and can result in zero tax on substantial home sale profits.

For broader financial planning, see how your investment returns compound with our home affordability calculator to understand your buying power.

Alaska residents must report capital gains on both their federal and federal-only return (no state return required for income tax). Key filing dates and considerations for Alaska investors:

**Federal deadline:** April 15 (or next business day). Extensions available through October 15, but any estimated tax owed is still due by April 15.

**Estimated tax payments:** If you expect to owe $1,000 or more in federal tax (including capital gains), you may need to make quarterly estimated payments to avoid underpayment penalties. The deadlines are April 15, June 15, September 15, and January 15 of the following year.

**No state filing requirement for income tax.** Since Alaska has no state income tax, you do not need to file a state income tax return for capital gains. However, some states require annual filings for other taxes (property, excise), so verify your specific obligations.

For a broader view of your finances, explore our home affordability calculator to see how capital gains affect your overall financial picture.