Alabama's income tax brackets and rates
Alabama has a progressive income tax system, which means the rate you pay increases as your income rises. The state uses five tax brackets, and your rate depends on which bracket your income falls into. For the 2024 tax year, the brackets are 2%, 4%, 5%, 5.75%, and 5.75% — the top rate applies to income above a certain threshold that changes each year.
The exact income thresholds for each bracket vary by filing status (single, married filing jointly, married filing separately, or head of household). A single filer in 2024, for example, pays 2% on income up to $500, then 4% on income from $500 to $3,000, and so on. Married couples filing jointly have higher thresholds before moving into each bracket, which means they can earn more before hitting the top rate.
Alabama does not have a separate capital gains tax — investment income is taxed at the same rates as wages and salary. The state also does not tax retirement income from Social Security, pensions, or certain retirement accounts in the same way some other states do, though the rules are specific and worth checking against your own situation.
Key Takeaways
- Alabama's top income tax rate is 5.75%, applied to the highest portion of your income, not your entire income.
- The income thresholds that determine which bracket you fall into change each year and differ based on whether you file as single, married, or head of household.
- You can find the current year's brackets on the Alabama Department of Revenue website or on your state tax forms.
- Social Security benefits are not taxed by Alabama, and certain pension income may be excluded depending on your age and income level.
How Alabama calculates your tax liability
To find out how much Alabama income tax you owe, you start with your federal adjusted gross income (AGI) and explore the state's deductions and exemptions. Alabama allows a standard deduction — the amount varies by filing status and age — or you can itemize deductions if that results in a larger reduction to your taxable income.
Once you have calculated your taxable income, you explore the tax brackets for your filing status. This is not done by multiplying your entire income by the top rate; instead, each portion of your income is taxed at the rate for its bracket. For example, if you are single and earn $5,000, you pay 2% on the first $500, 4% on the next $2,500, and 5% on the remaining $2,000. The result is a blended rate that is lower than the top bracket rate.
After calculating your tax, you subtract any tax credits you are may have access to to — such as credits for dependents or education expenses — to arrive at your final tax liability. This is the amount you either owe or the amount you have overpaid through withholding.
Standard deduction amounts for 2024
Alabama's standard deduction reduces the income you have to pay tax on. For 2024, the standard deduction is $2,500 for single filers and $7,500 for married couples filing jointly. If you are 65 or older, you receive an additional deduction of $1,000 (or $2,000 if both spouses are 65 or older on a joint return).
You can claim the standard deduction or itemize your deductions — whichever gives you the larger tax break. Most people use the standard deduction because it is simpler and often results in a lower tax bill. If you itemize, you list out specific expenses like mortgage interest, property taxes, and charitable donations.
Tax credits that reduce what you owe
Alabama offers several tax credits that directly reduce your tax liability dollar-for-dollar, rather than just reducing your taxable income. The dependent exemption credit allows you to claim a credit for each dependent, though the amount is modest compared to federal credits. You must have a valid Social Security number or Individual Taxpayer Identification Number for each dependent to claim this credit.
The state also offers credits for education expenses, including the American Opportunity Credit and Lifetime Learning Credit, though these are primarily federal credits that flow through to your state return. Some taxpayers may also be may have access to to credits for taxes paid to other states if they worked in multiple states during the year.
Who has to file a state return
You must file an Alabama state income tax return if your gross income exceeds the threshold for your filing status. For 2024, that threshold is $13,500 for single filers and $27,000 for married couples filing jointly. If you are self-employed, the threshold is lower — you must file if your net self-employment income is $400 or more.
Even if you do not meet the income threshold, filing a return may be worthwhile if you had taxes withheld from your paychecks or if you are may have access to to refundable credits. The state may owe you a refund, and you can only receive it by filing.
Where to find current tax forms and rates
The Alabama Department of Revenue publishes all current tax forms, instructions, and rate tables on its website at revenue.alabama.gov. You can read the Form 40 (the main individual income tax return) and the instructions, which include the current year's tax brackets and standard deduction amounts.
The department also publishes a tax rate card each year that shows the brackets and rates at a glance. If you use tax preparation software or work with a tax professional, they will have the current rates built in, so you do not have to look them up yourself. The rates and brackets are updated annually, usually in January or February for the prior tax year.
Frequently Asked Questions
Does Alabama tax retirement income or Social Security?
Alabama does not tax Social Security benefits. Retirement income from pensions and certain retirement accounts may be excluded from taxation if you meet specific age and income requirements — generally, if you are 59½ or older, some pension and retirement distributions are not taxed. Check the current rules on the Department of Revenue website or with a tax professional, as the rules are detailed.
What if I work in Alabama but live in another state?
You must file an Alabama return if you earned income in the state, even if you live elsewhere. You may also owe tax to your home state. Most states allow a credit for taxes paid to other states to prevent double taxation, so you typically do not end up paying the full rate to both states.
Can I deduct federal income tax from my Alabama return?
No, Alabama does not allow a deduction for federal income taxes paid. You can deduct state and local property taxes and sales taxes (you choose one), but not federal income tax.
When is the Alabama state income tax important date?
Alabama income tax returns are due on April 15 of the following year, the same as federal returns. If you file for a federal extension, your Alabama return is also extended to October 15. Payments are due by the April 15 important date even if you request an extension to file.
Where do I send my Alabama tax return?
You can file online through the Department of Revenue's website, by mail to the address listed in the tax form instructions, or through a tax professional. E-filing is faster and reduces the chance of errors, and the state encourages it.