Maine Capital Gains Tax Calculator
Maine taxes capital gains as ordinary income at the state level, which means a gain on selling shares, property or other investments is added to your other income and taxed using the Maine income tax brackets, with no separate preferential long-term rate like the federal system provides. This calculator estimates the Maine state tax on a capital gain by stacking the gain on top of your other taxable income and applying the sourced Maine Revenue Services brackets for tax year 2024, then taking the difference. Enter your gain, your other annual taxable income and your filing status to see the state tax attributable to the gain and the effective rate on it. The result is the Maine state portion only; federal capital gains tax, which has separate short-term and long-term rates set by the IRS, is calculated separately. Because the gain stacks on your other income, the same gain is taxed at a higher rate the more you already earn. Some states provide specific exclusions or preferential treatment for certain gains; this tool uses the standard ordinary-income method and links the Maine Revenue Services so you can confirm any special rule that applies to you.
Maine taxes capital gains as ordinary income. A $20,000.00 gain on top of $60,000.00 of other income (single) adds about $1,379.33 in Maine state tax, an effective rate on the gain of 6.90%.
How Maine taxes capital gains
Maine taxes capital gains as ordinary income, so the gain is added to your other income and taxed at the Maine bracket rates.
state tax on gain = state income tax on (other income + gain) - state income tax on (other income)
effective rate on gain = state tax on gain / gain x 100
Maine capital gains tax: frequently asked questions
How are capital gains taxed in Maine?
Maine taxes capital gains as ordinary income at the state level: the gain is added to your other taxable income and taxed using the Maine income tax brackets published by the Maine Revenue Services. This calculator applies those brackets to your gain. Some states provide specific exclusions or rates for particular gains; confirm your situation with the Maine Revenue Services.
How much state tax will I pay on a $20,000.00 capital gain in Maine?
Stacked on $60,000.00 of other income, a $20,000.00 gain adds about $1,379.33 of Maine state income tax for a single filer, an effective rate on the gain of 6.90%. Your figure depends on your total income and filing status; enter them above.
Does Maine have a separate long-term capital gains rate?
Most states, including the default treatment here, tax long-term and short-term capital gains at the same ordinary income rates, unlike the federal system which has preferential long-term rates. Any state-specific exclusion or preferential rate is set by the Maine Revenue Services; this calculator uses the ordinary income method and links the source.
What are Maine's 2024 income tax brackets and rates?
Maine has three brackets for 2024. Single filers pay 5.8% on $0-$24,500, 6.75% on $24,501-$58,050, and 7.15% on income above $58,050. Married filing jointly thresholds are approximately double: 5.8% on $0-$49,050, 6.75% on $49,051-$116,100, and 7.15% above $116,100. Maine adjusts these thresholds annually for inflation. Authority: Maine Revenue Services, Maine Revised Statutes Title 36 §5111.
Does Maine have an Alternative Minimum Tax (AMT)?
Yes, Maine has its own individual Alternative Minimum Tax. Maine's AMT is calculated separately from regular Maine income tax and applies if it exceeds the regular tax amount. Maine's AMT conforms in large part to the federal AMT framework but uses Maine-specific rates and exemptions. Taxpayers with significant preference items or deductions should calculate both their regular Maine tax and their Maine AMT to determine which applies. See Maine Revised Statutes Title 36 §5203-C.
Can Maine residents deduct Social Security income?
Maine allows a deduction for Social Security benefits that are included in federal adjusted gross income. However, the deduction phases out for higher-income taxpayers. For 2024, the deduction is available in full for Maine AGI below certain thresholds and is reduced or eliminated as income rises. Lower-income retirees may pay little or no Maine income tax on their Social Security benefits. Maine Revenue Services publishes the current phase-out thresholds in its annual instruction booklets.
How does Maine's standard deduction compare to the federal amount?
Maine conforms directly to the federal standard deduction, so for 2024 the Maine standard deduction is $14,600 for single filers and $29,200 for married filing jointly, matching the federal amounts exactly. This is more generous than several neighboring states that maintain their own lower standard deductions. Maine also allows additional deductions for the elderly and blind, matching the federal additional standard deduction amounts. Maine Revised Statutes Title 36 §5125.
Official sources
- Maine income tax rates applied to capital gains (tax year 2024): Maine Revenue Services, as at Jun 12, 2026.
Reviewed by the CalculatorHub team, edited by James Graham, 25 June 2026. See our methodology. General information, not financial or tax advice. State-specific exclusions, if any, are set by the Maine Revenue Services.