Alabama State Tax Guide
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Alabama State Tax Guide
Extension rules
Extension type: Automatic State Extension
Alabama automatically grants a six-month filing extension to all taxpayers by default, provided that you have no unpaid tax liability as of the original filing deadline. If you do not owe a remaining tax balance to the state of Alabama, you do not need to submit a paper or electronic extension form. If you expect to owe state taxes, you must calculate your estimated liability and pay at least 90% of your total tax due (or 100% of your previous year's tax liability) by the original April 15 deadline.
If you owe tax: If you expect to owe state taxes, you must calculate your estimated liability and pay at least 90% of your total tax due (or 100% of your previous year's tax liability) by the original April 15 deadline. Log into your My Alabama Taxes (MAT) account or use the My Alabama Taxes (MAT) guest portal to pay via ACH Debit. There is no fee for this service, and you do not need to mail any vouchers. If you prefer to send a check or money order, you must print and fill out Form 40V (Individual Income Tax Payment Voucher). You can search for and download this form directly from the Alabama Department of Revenue website.
If you owe $0: If you do not owe a remaining tax balance to the state of Alabama, you do not need to submit a paper or electronic extension form. Alabama automatically grants a six-month filing extension to all taxpayers by default, provided that you have no unpaid tax liability as of the original filing deadline.
How to request
- Online: Log into your My Alabama Taxes (MAT) account or use the My Alabama Taxes (MAT) guest portal to pay via ACH Debit. There is no fee for this service, and you do not need to mail any vouchers.
- Mail: If you prefer to send a check or money order, you must print and fill out Form 40V (Individual Income Tax Payment Voucher). You can search for and download this form directly from the Alabama Department of Revenue website.
If you expect to owe state taxes, you must calculate your estimated liability and pay at least 90% of your total tax due (or 100% of your previous year's tax liability) by the original April 15 deadline.
ALDOR — Individual income tax filing information
Relevant Links
Alabama Key deadlines (tax year 2025, return filed in 2026)
- Filing deadline: Apr 15, 2026
- Extension request deadline: Apr 15, 2026 — Automatic unless you owe a tax liability then the deadline to file is April 15, 2026
- Extended return deadline: Oct 15, 2026 (6-month extension)
- Payment deadline: Apr 15, 2026
- Differs from federal: No
If you expect to owe state taxes, you must calculate your estimated liability and pay at least 90% of your total tax due (or 100% of your previous year's tax liability) by the original April 15 deadline.
If the due date for filing your return falls on a Saturday, Sunday, or legal holiday, your return is due by the next regular working day.
Estimated payments
- Apr 15, 2026
- Jun 15, 2026
- Sep 15, 2026
- Jan 15, 2027
October 15, 2026 (6-month extension)
Payment rules
If you expect to owe state taxes, you must calculate your estimated liability and pay at least 90% of your total tax due (or 100% of your previous year's tax liability) by the original April 15 deadline. Log into your My Alabama Taxes (MAT) account or use the My Alabama Taxes (MAT) guest portal to pay via ACH Debit. There is no fee for this service, and you do not need to mail any vouchers. If you prefer to send a check or money order, you must print and fill out Form 40V (Individual Income Tax Payment Voucher). You can search for and download this form directly from the Alabama Department of Revenue website.
Official payment portal
My Alabama Taxes (MAT) · ACH Debit
Payment options
- My Alabama Taxes (MAT) · There is no fee for this service
- Payment plan (My Alabama Taxes)
- Form 40V (Individual Income Tax Payment Voucher)
Payment plan availability
Available: Yes
Relevant Links
Filing forms
Regular filing
- None - if no tax liability is owed - None - if no tax liability is owed. If you need to make an estimated tax payment
- Form 40V - Individual Income Tax Payment Voucher
Alabama Refund Tracking
Processing time: Check My Alabama Taxes for current status
Do I need to file?
If you do not owe a remaining tax balance to the state of Alabama, you do not need to submit a paper or electronic extension form. Alabama automatically grants a six-month filing extension to all taxpayers by default, provided that you have no unpaid tax liability as of the original filing deadline.
- Residents: If you do not owe a remaining tax balance to the state of Alabama, you do not need to submit a paper or electronic extension form.
- Part-year residents: If you do not owe a remaining tax balance to the state of Alabama, you do not need to submit a paper or electronic extension form.
- Nonresidents: If you do not owe a remaining tax balance to the state of Alabama, you do not need to submit a paper or electronic extension form.
Filing methods
Online filing
Log into your My Alabama Taxes (MAT) account or use the My Alabama Taxes (MAT) guest portal to pay via ACH Debit. There is no fee for this service, and you do not need to mail any vouchers.
Mail filing
If you prefer to send a check or money order, you must print and fill out Form 40V (Individual Income Tax Payment Voucher). You can search for and download this form directly from the Alabama Department of Revenue website.
