Mississippi franchise tax: due date, fees & penalties (2026)
Quick answer
On or before the fifteenth day of the fourth month following the close of the accounting year, including short years; next business day if Saturday, Sunday or legal holiday.
Deadline rule
On or before the fifteenth day of the fourth month following the close of the accounting year, including short years; next business day if Saturday, Sunday or legal holiday.
Grace period
A filing extension does not extend payment time; interest and penalty apply to underpayment.
Last verified Oct 25, 2026
How do I file?
franchise tax
Entity types
Corporation; foreign corporation
Last verified Oct 25, 2026 — source and quotation
Every corporation domesticated or qualified to do business in Mississippi must file a return even if the corporation is inactive or not otherwise engaged in business.
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When do I file or renew?
franchise tax
Deadline rule
On or before the fifteenth day of the fourth month following the close of the accounting year, including short years; next business day if Saturday, Sunday or legal holiday.
Last verified Oct 25, 2026 — source and quotation
The Mississippi combination return of corporate income and franchise tax must be filed on or before the 15th day of the 4th month following the close of the accounting year. A short taxable year is considered a taxable year and must be filed on or before the 15th day of the 4th month following the close of the short fiscal year. If the due date falls on a Saturday, Sunday or legal holiday, the return is due the next business day.Official source
Grace
A filing extension does not extend payment time; interest and penalty apply to underpayment.
Last verified Oct 25, 2026 — source and quotation
The authorized extension of time to file does not extend the time for payment of the income or franchise tax due. Interest and penalty will apply on any underpayment of tax.Official source
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Official sources and verification (4)
Last verified Oct 25, 2026. Each quotation supports the corresponding published value.
Franchise tax
franchise tax
The Mississippi combination return of corporate income and franchise tax must be filed on or before the 15th day of the 4th month following the close of the accounting year. A short taxable year is considered a taxable year and must be filed on or before the 15th day of the 4th month following the close of the short fiscal year. If the due date falls on a Saturday, Sunday or legal holiday, the return is due the next business day.Official source
Last verified Oct 25, 2026
Corporation; foreign corporation
corporation; foreign_corporation
Every corporation domesticated or qualified to do business in Mississippi must file a return even if the corporation is inactive or not otherwise engaged in business.Official source
Last verified Oct 25, 2026
On or before the fifteenth day of the fourth month following the close of the accounting year, including short years; next business day if Saturday, Sunday or legal holiday.
On or before the fifteenth day of the fourth month following the close of the accounting year, including short years; next business day if Saturday, Sunday or legal holiday. Applies to: Corporations subject to Mississippi corporate income and franchise tax.
The Mississippi combination return of corporate income and franchise tax must be filed on or before the 15th day of the 4th month following the close of the accounting year. A short taxable year is considered a taxable year and must be filed on or before the 15th day of the 4th month following the close of the short fiscal year. If the due date falls on a Saturday, Sunday or legal holiday, the return is due the next business day.Official source
Last verified Oct 25, 2026
A filing extension does not extend payment time; interest and penalty apply to underpayment.
A filing extension does not extend payment time; interest and penalty apply to underpayment.
The authorized extension of time to file does not extend the time for payment of the income or franchise tax due. Interest and penalty will apply on any underpayment of tax.Official source
Last verified Oct 25, 2026
Not yet verified: franchise tax: fee, franchise tax: late penalty — see the official agency.
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Related licenses in Mississippi
Last verified Oct 25, 2026.
Official sources (1)
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