Mississippi Department of Revenue Form Instructions
- 80-100 2025 Form 80-100 Mississippi Individual Income Tax Instructions
- 80-161 2025 Form 80-161 Tax Credit for Income Tax Paid by Electing Pass-Through Entity
- 81-100 2025 Form 81-100 Mississippi Fiduciary Income Tax Return Instructions
- 83-100 2025 Form 83-100 Mississippi Corporate Income and Franchise Tax Instructions
- 84-100 2025 Form 84-100 Mississippi Pass-Through Entity Instructions (electing PTE, composite, S-corp franchise)
- 84-380 2025 Form 84-380 Non-Residence Income Tax Agreement
- 84-381 2025 Form 84-381 Pass-Through Entity Election Form
- 84-387 2025 Form 84-387 Partnership Income Tax Estimate Voucher
- contractor-guide Mississippi Sales Tax Guide for Construction Contractors