| State Name | Mississippi |
| Business Entity Type | LLCs / Partnerships |
| Extension Status | Approved with Federal |
| Return Due Date | March 17, 2025 |
| Extended Due Date | September 15, 2025 |
| Other Information | * Mississippi grants you an automatic 6-month extension to file your business tax return. * The extension is NOT an extension to pay any taxes you may have due. Tax payments are due by the original return due date. * Businesses are required to pay 100% of the tax due by the deadline or the return filing may be deemed to be late. |
| Online Payment | Mississippi | Online Tax Extension Payment |
| Payment Voucher Form | Form 83-180 | Application for Automatic Extension |
| State Payment Agency | Mississippi Department of Revenue |
| Mailing Address with Payment | Department of Revenue |
| Failure to File Penalties | 5% per month, up to 25%. |
| Failure to Pay Penalties | 0.5% of tax due, plus an additional 0.5% for each additional month, not to exceed 25%. |
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