File Your Missouri Business Taxes Online with Confidence

X.TAX provides expert Business tax solutions for filing all your MO business tax forms, 100% accuracy, Audit Protect and Assist Filing. 

Understand Missouri Business Taxes Better

Stay informed with essential MO biz tax insights.
Missouri offers a competitive 4% corporate income tax rate, attracting businesses with its favorable tax environment. The state provides various tax credits and incentives, such as the Missouri Works Program and the Low-Income Housing Tax Credit. This supportive landscape fosters economic growth and innovation, making Missouri a thriving hub for diverse businesses.

Missouri Business Tax Forms 

Know MO Business Tax Forms, which required for your business to stay compliant with South Dacota’s regulations and avoid penalties. 

Corporations 

Partnerships

Withholding Tax Forms

Sales and Use Tax Forms

Earnings Tax Forms (City of St. Louis)

Estate and Trust Forms

How to file MO Business Tax online with X.TAX 

File Your Missouri Biz Taxes the easiest way.  

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. 

Missouri Business Tax Deadlines

Don’t Miss Your MO Biz Tax Filing Due Dates

Business Type Forms Due Date
Corporations MO-1120: Corporation Income Tax Return April 15, 2025
MO-1120ES: Estimated Income Tax Payment Voucher Due quarterly; specific dates depend on the fiscal year
MO-7004: Application for Extension of Time to File April 15, 2025 (Extension until October 15, 2026)
MO-1120S: S-Corporation Income Tax Return April 15, 2025
MO-1NR: Nonresident Shareholder's Income Tax Return April 15, 2025
Partnership MO-1065: Partnership Return April 15, 2025
MO-3NR: Nonresident Shareholder Composite Return April 15, 2025
Withholding Tax Forms MO-941: Employer's Return of Income Taxes Withheld Due quarterly; January 31, April 30, July 31, October 31
MO W-3: Transmittal of Wage and Tax Statements January 31, 2025
Sales and Use Tax Forms ST-1: Sales Tax License Application No specific deadline; must be filed before collecting sales tax
ST-2: Sales Tax Exemption Certificate No specific deadline; used at the time of purchase
ST-3: Direct Pay Permit Application No specific deadline; must be filed before making direct pay purchases
ST-8: Sales and Use Tax Return Due on the last day of the month following the reporting period
Earnings Tax Forms (City of St. Louis) E-234: Business Earnings Tax Return April 15, 2025
E-11: Voluntary Payment Voucher for Earnings Tax Due with the return or as needed
E-5: Notice to Cancel Earnings Tax Account No specific deadline; submitted when needed
E-6: Informational Disbursement Report (for Not-for-Profit organizations) Due with annual filings
E-8: Extension Request for Business Earnings Tax Return April 15, 2025 (Extension until October 15)
Estate and Trust Forms 1041: U.S. Income Tax Return for Estates and Trusts April 15, 2025 (for calendar-year estates)

Missouri Business Tax Exemptions 

Save More with These MO Biz Tax Exemptions

Sales and Use Tax Exemptions

Incentives for Specific Industries

Property Tax Exemptions

X.TAX is simplifying Your Missouri Business Tax Filing Online  

Accurate, Easy, and Built for Your Missouri Biz Tax Filings 

Audit Protect

RiskScore

AItomatic Filings

QuickBooks Integration

Why Missouri Businesses loves X.TAX

What Our Customers Are Saying

Your Missouri Businesses TAX FAQs 

Find clear answers to common questions about MO biz tax filings.
X.TAX offers 100% accuracy, audit protection, and seamless filing for all required Missouri business tax forms. Plus, our intuitive platform saves you time and stress.
We provide all necessary forms for corporations, partnerships, and more. Our platform guides you to ensure compliance. For details, visit our website.
Key deadlines include April 15 for income tax returns and January 31 for withholding tax forms. Don’t worry—X.TAX keeps you on track with deadline reminders.
Yes! Missouri offers sales, property, and industry-specific tax exemptions. We help you identify and apply for the ones you qualify for.
Late filings can result in penalties. X.TAX helps prevent this with automatic alerts and filing extensions.
Absolutely. X.TAX uses advanced encryption to protect your data and offers secure submission directly to the state.
With X.TAX, you can file confidently on your own or let our certified CPAs handle it for you with AItomatic Filing.