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Due Dates

Some Individual & Corporate Income Taxes have set due dates and others vary by situation. See table below.

Tax Type Due Date
Individual Income Tax Due the same date as the corresponding federal income tax return.
Corporate Income Tax Due the same date as the corresponding federal income tax return.

For Corporations on a calendar year, the due date is the 15th day of the 4th month after year-end.

For Corporations on a fiscal year other than a calendar year and June 30 year end, the due date is the 15th day of the 4th month following the end of the corporation’s fiscal year.

For Corporations with a fiscal year ending on June 30, the due date is the 15th day of the 3rd month following the end of the fiscal year.

If an extension has been granted for federal purposes, the extension is also granted for Alabama purposes; the Federal Form 7004 must be submitted with the Form 20C.

Alabama Business Privilege Tax for  C Corporations Due the same date as the corresponding federal income tax return.

For calendar year taxpayers and taxpayers with a fiscal year other than June 30, the due date is the 15th day of the 4th month after the beginning of the taxable year.

For corporations with a taxable fiscal year of June 30, the due date is 15th day of the 3rd month after the beginning of the taxpayer’s taxable year.

Alabama Business Privilege Tax for S-Corporations Due the same date as the corresponding federal S-Corporation income tax return. The due date is the 15th day of the 3rd month after beginning of taxable year.
Alabama Business Privilege Tax for Limited Liability Entities Due the same date as the corresponding federal income tax return. The due date is the 15th day of the 3rd month after beginning of taxable year
Alabama Business Privilege Tax for Disregarded Entities Due no later than the time its owner is required to file its corresponding federal return.
Alabama Business Privilege Tax for Financial Institution Groups Due the same date as the corresponding  Alabama Financial Institution Excise Tax return.  For calendar and fiscal year taxpayers, the due date is the 15th day of the 4th month after the  beginning of the taxable year.
Financial Institutions Excise Tax Due on April 15 following the end of the tax year.
S-Corporation Due annually on March 15th for calendar year taxpayers.
Partnerships/Limited Liability Corporations Due annually on March 15 for calendar year taxpayers.
Fiduciary Tax Due annually on April 15 for calendar year taxpayers.
Estate/Inheritance Tax Alabama Estate Tax filings are no longer required.
Withholding Varies by amounts due and monthly, quarterly, or annual returns.

Monthly returns due by the 15th following the month close.

Quarterly returns due on the last day of the month following the quarter end.

Annual returns due by January 31 following the withholding year.