Alabama income tax goes up to 5% at the top bracket. Calculate your combined federal + state effective tax rate for 2026. Formula shown, sources cited — no account required.
Alabama uses a graduated income tax with a top rate of 5.0%, reached at relatively modest income levels. For a median earner bringing in $66,659, the state tax bill sits in the mid-range for the Southeast. Federal income tax layers on top, and the combined marginal rate for a typical Alabama household lands in the 27–30% range depending on filing status and deductions. One notable Alabama-specific deduction is the federal income tax deduction — Alabama lets taxpayers deduct what they paid to the IRS from their state taxable income, which reduces the effective state tax rate meaningfully. That quirk makes Alabama's real tax burden lower than the headline 5.0% rate implies. Enter your salary into the tax bracket calculator to see exactly how your income splits across federal and state brackets.
Alabama Tax Brackets Explained (2026)
Alabama has a state income tax with a top marginal rate of 5%. On top of federal rates (10%–37%), residents can face a combined marginal rate exceeding 35% at higher income levels. However, your effective rate is always lower than the marginal rate because only income above each threshold is taxed at that bracket's rate.
The median household in Alabama earns $66,659/year. At that income (single filer), the federal effective rate is approximately 12–14%, bringing total income tax (federal + state) to roughly 15–18%.
How Marginal vs. Effective Rate Works
The marginal rate is the rate on your last dollar of income — it does not apply to all income. The effective rate is your total tax divided by total income. For example, someone earning $100,000 in Alabama has a 22% federal marginal rate but an effective federal rate of roughly 15%, because the first $44,725 (2024) is taxed at 10% and 12%, not 22%.