Alabama has a state income tax, and most working residents must file a return
Yes, Alabama charges state income tax on wages, investment income, and other earnings. If you live in Alabama and earn income above a certain threshold, you are required to file a state tax return with the Alabama Department of Revenue — separate from your federal return.
Alabama's tax rates range from 2% to 5% depending on your income bracket. The state also taxes interest, dividends, capital gains, and retirement income in some cases, though certain types of retirement income receive preferential treatment or exemptions.
The filing requirement depends on your age, filing status, and total income. A single person under 65 must file if their gross income exceeds $13,200 for the 2023 tax year (this threshold changes annually). If you are 65 or older, the threshold is higher. Married couples filing jointly have different thresholds based on whether both spouses are over 65.
Key Takeaways
- Alabama taxes income at rates between 2% and 5%, with higher earners paying the top rate.
- You must file a state return if your income exceeds Alabama's filing threshold, which varies by age and filing status.
- Certain retirement income, including some pension and Social Security benefits, may be partially or fully exempt from Alabama tax.
- Alabama allows you to claim a standard deduction or itemize deductions, similar to federal filing.
- You file your Alabama return on Form 40 (or Form 40-NR if you are a nonresident) by the same important date as your federal return.
Alabama's income tax brackets and rates
Alabama uses a progressive tax system with five tax brackets. The lowest bracket starts at 2% on income up to $500, and the rate increases as your income rises. The highest bracket applies a 5% rate to income over $3,000 (these bracket thresholds are the same for all filing statuses but are adjusted annually for inflation).
Because Alabama's brackets are narrow compared to federal brackets, your tax bill depends heavily on your exact income level. A single person earning $25,000 will pay tax at the 5% rate on most of their income, while someone earning $2,500 pays only the lower rates. The Alabama Department of Revenue publishes updated bracket amounts each year, usually in December for the following tax year.
You can find the current year's brackets on the Alabama Department of Revenue website. If you use tax software or work with a tax preparer, the brackets are built in automatically.
Who must file a state return in Alabama
The filing requirement is based on your gross income, age, and filing status. For the 2023 tax year, a single person under 65 must file if gross income is $13,200 or more. A single person 65 or older must file if gross income is $15,200 or more. Married couples filing jointly have thresholds of $26,400 (both under 65) or higher if one or both spouses are 65 or older.
These thresholds increase each year. Even if your income is below the threshold, you may want to file anyway if you had taxes withheld from your paychecks — filing allows you to claim a refund of any overpayment.
If you are a nonresident who earned income in Alabama, you may also be required to file. Nonresidents use Form 40-NR instead of Form 40.
Retirement income and exemptions
Alabama offers significant breaks on certain types of retirement income. Social Security benefits are completely exempt from Alabama state tax. Pension income from a government employer (such as a teacher's pension or military retirement) is also exempt, as long as you received the pension before age 59½ or meet other conditions.
Private pension and annuity income receives an exemption up to a certain amount. For the 2023 tax year, you can exclude up to $12,000 of pension or annuity income from taxation if you are under 59½, or up to $18,000 if you are 59½ or older. These amounts change annually.
Income from Individual Retirement Accounts (IRAs) and 401(k) withdrawals does not receive an automatic exemption, so those distributions are taxable. However, if you rolled over a traditional IRA to a Roth IRA, the conversion itself is not taxed in Alabama (though it is taxed federally).
Deductions and credits available in Alabama
Alabama allows you to claim either a standard deduction or itemize your deductions, just like on your federal return. The standard deduction amount varies by age and filing status and is adjusted annually. For 2023, the standard deduction for a single person under 65 is $3,000.
Alabama also offers a dependent exemption of $1,500 per dependent (adjusted annually). If you have children or other dependents, you can claim this exemption on your state return.
The state does not offer as many tax credits as the federal government, but you may be able to claim credits for child and dependent care expenses, education-related costs, or other specific situations. Check the Alabama Department of Revenue website or Form 40 instructions to see which credits explore to your situation.
How to file your Alabama state return
You file your Alabama return using Form 40 (or Form 40-NR for nonresidents). The form is due on the same date as your federal return — typically April 15 of the year following the tax year. If April 15 falls on a weekend or holiday, the important date moves to the next business day.
You can file by mail, electronically through the Alabama Department of Revenue website, or through tax software that supports Alabama returns. Many free tax software options include Alabama state filing. If you file electronically, you typically receive a refund faster than if you mail a paper return.
If you cannot file by the important date, you can request an extension. An extension gives you until October 15 to file, but it does not extend the time to pay any taxes owed — you should pay by April 15 to avoid penalties and interest.
Frequently Asked Questions
Do I have to pay Alabama income tax if I work in Alabama but live in another state?
Yes, you must file Form 40-NR (nonresident return) with Alabama and pay tax on income earned in the state. However, you may also owe tax to your home state. Some states have reciprocal agreements that prevent double taxation, so check with both states' revenue departments.
Is unemployment income taxable in Alabama?
No, unemployment benefits are exempt from Alabama state income tax. You do not need to include them on your state return, though they are taxable for federal purposes.
What if I did not have enough taxes withheld during the year?
You will owe the difference when you file. To avoid this in the future, you can adjust your withholding by filing a new W-4 form with your employer. If you are self-employed, you may need to make quarterly estimated tax payments to Alabama.
Can I file my Alabama return electronically if I file my federal return on paper?
Yes, you can file them separately. However, most tax software allows you to file both at the same time, which is simpler. If you use a tax preparer, they can file both returns for you regardless of which method you choose.
What happens if I miss the filing important date?
The Alabama Department of Revenue charges a failure-to-file penalty and interest on any unpaid tax. The penalty is typically 5% per month (up to 25%) of the unpaid tax. Filing late is better than not filing at all, so submit your return as soon as you can.