Simplify Your Mississippi Business Tax Filing
X.TAX ensures accurate, stress-free filing for all your MS business tax forms.
Mississippi Business Tax Filing Made Simple
Stay informed with essential MS biz tax insights.
Mississippi offers a competitive 5% corporate income tax rate1, attracting businesses with its favorable tax environment. The state provides various tax credits and incentives, such as the Jobs Tax Credit and the Research and Development Skills Tax Credit. This supportive landscape fosters economic growth and innovation, making Mississippi a thriving hub for diverse businesses.
Mississippi Business Tax Forms
File the forms required to meet Mississippi’s tax obligations
Corporate Income and Franchise Tax Forms
- Form 1120 (C Corporation Income Tax Return)
- Form 1120S (S Corporation Income Tax Return)
- Form 83-105: Corporate Income and Franchise Tax Return
- Form 83-180: Application for Automatic Extension of Time to File
- Form 83-300: Corporate Income Tax Voucher
- Form 84-105: S Corporation Income and Franchise Tax Return
Partnership Tax Forms
- Form 1065 (Partnership Income Tax Return)
- Form 502: Pass-Through Entity Return (for S Corporations and partnerships)
- Form 85-105: Partnership Return
Estate and Trust Tax Forms
- Form 770: Mississippi Fiduciary Income Tax Return
- Form ET-1: Estate Tax Return
- Form ET-K1: Beneficiary’s Share of Income, Deductions, and Credits
LLCs
-
Multi-member LLCs typically file:
Form 1065 (Partnership Income Tax Return)
Filing Mississippi Taxes Online with X.TAX
Fast, secure, and compliant filing in four simple steps.
Create an Account
Set up your profile securely.
Upload Your Information
Enter your income, expenses, and tax forms.
Review for Errors
Use smart tools to verify accuracy.
Submit to the State
File with one click and track your submission.
Key Mississippi Tax Deadlines
Never miss an important filing date.
| Business Type | Forms | Due Date |
|---|---|---|
| Corporations | Form 1120 | April 15, 2025 |
| Form 1120S | March 17, 2025 | |
| Form 83-105 | March 15, 2025 | |
| Form 83-180 (Extension Request) | March 15, 2025 | |
| Form 83-300 | March 15, 2025 | |
| Form 84-105 | March 15, 2025 | |
| Form 5 | April 15, 2025 | |
| Partnerships | Form 1065 | March 17, 2025 |
| Form 502 | March 17, 2025 | |
| Form 85-105 | March 15, 2025 | |
| Form 3 | March 15, 2025 | |
| Form 1CNP | April 15, 2025 | |
| LLCs and Sole Proprietors | Form 1065 | March 17, 2025 |
| Form 1 | April 15, 2025 | |
| Form Corp-ES | Quarterly payments: April 15, June 15, September 15, and January 15 | |
| Form PW-1 | April 15, 2025 | |
| Estates and Trusts | Form 770 | May 1, 2025 |
| Wisconsin Estate & Trust Forms | April 15, 2025 |
Mississippi Business Tax Exemptions
Reduce your MS tax liability with state-specific exemptions.
Sales Tax Exemptions
Income Tax Exemptions
General Exemptions
X.TAX- Your Mississippi Tax Filing Solution
Filing your MS business taxes has never been easier.
Audit Protect
- Detect and address audit triggers early using Data Signals.
- Manage audits efficiently with full support from X.TAX.
RiskScore
- Track your IRS account status in real time.
- Receive alerts about potential filing issues or unresolved balances.
AItomatic Filings
- Let CPAs handle your filings for $250.
- Includes audit protection for a full year.
QuickBooks Integration
- Import financial data directly for faster, error-free filings.
Trusted by Mississippi Businesses
Hear from X.TAX users across Mississippi.
Your Mississippi Tax Questions Answered
Clear solutions to common business tax concerns.
Why should I choose X.TAX for Mississippi tax filing?
X.TAX offers a fast, secure, and reliable platform for all your filing needs.
How do I know which forms to file?
We guide you through every form your business requires based on your entity type
Can I avoid late penalties?
We provide deadline alerts and help file extensions like Form 83-180.
Are there exemptions for my business?
Mississippi provides exemptions for manufacturing, nonprofits, and more.
Is my data secure?
Absolutely. X.TAX uses top-notch encryption to keep your data safe.
Does X.TAX support extensions?
We help file forms like Form 83-180 for corporations and Form ET-1 for estates.
Can I use X.TAX if I’m filing late?
X.TAX simplifies late filing and ensures you stay compliant.
