Massachusetts Business Taxes Online? Get It Done and Dusted in Minutes
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Massachusetts Business Taxes at a Glance.
Stay informed with essential MA business tax insights.
Massachusetts offers a robust business tax environment with an 8.00% corporate income tax rate. The state provides various tax credits and incentives, attracting businesses from diverse sectors. Massachusetts fosters innovation and economic growth, making it a thriving hub for both entrepreneurs and established companies.
Massachusetts Business Tax Forms
Know MA Business Tax Forms, which required for your business to stay compliant with Massachusetts regulations and avoid penalties.
Corporations
- Form 1120 (C Corporation Income Tax Return)
- Form 1120S (S Corporation Income Tax Return)
- Form 355: Corporate Excise Tax Return for C Corporations.
- Form 355S: S Corporation Excise Tax Return for S Corporations.
- Form 355-ES: Corporate Estimated Tax Payment used for making estimated tax payments.
- Form 355Q: Application for Manufacturer Classification for corporations seeking classification as manufacturers.
Partnerships
- Form 1065: U.S. Return of Partnership Income for reporting income, deductions, and credits.
- Form 3: Partnership Excise Tax Return specific to Massachusetts partnerships.
Sole Proprietorships
- Form 1: Massachusetts Resident Income Tax Return for sole proprietors.
- Schedule C: Profit or Loss from Business filed with Form 1 for reporting business income.
Estate and Trusts
- Form 2: Massachusetts Estate Tax Return required for estates with gross value exceeding a specific threshold.
- Form 2U: Massachusetts Trust Income Tax Return for reporting income earned by trusts.
Corporations
- Form ST-1: Sales and Use Tax Registration Application required for businesses selling tangible goods to obtain a Sales Tax Registration Number.
- Form ST-9: Sales and Use Tax Return for remitting sales tax collected.
How to file MA Business Tax online with X.TAX
Simply File your Massachusetts biz taxes in 4 step.
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 MA Business Tax Deadlines
Never miss your MA Biz Tax filing date with X.TAX reminders
| Business Type | Form | Due Date | Extension Deadline |
|---|---|---|---|
| Corporations | Form 1120: C Corporation Income Tax Return | April 15, 2025 | November 15, 2025 |
| Form 1120S: S Corporation Income Tax Return | March 15, 2025 | September 15, 2025 | |
| Form 355: Corporate Excise Tax Return | April 15, 2026 | October 15, 2026 | |
| Form 355S: S Corporation Excise Tax Return | March 15, 2026 | September 15, 2026 | |
| Form 355-ES: Corporate Estimated Tax Payment | Quarterly payments due on: | April 15, 2025, June 15, 2025, September 15, 2025, January 15, 2026 | |
| Partnerships | Form 1065: U.S. Return of Partnership Income | March 15, 2026 | September 15, 2026 |
| Form 3: Partnership Excise Tax Return | March 15, 2026 | September 15, 2026 | |
| Sole Proprietorships | Form 1: Massachusetts Resident Income Tax Return | April 15, 2026 | October 15, 2026 |
| Schedule C: Profit or Loss from Business | Filed with Form 1 | April 15, 2026 | |
| Estate and Trusts | Form 2: Massachusetts Estate Tax Return | Within nine months of death | N/A |
| Form 2U: Massachusetts Trust Income Tax Return | April 15 for the previous tax year | N/A | |
| Sales and Use Tax | Form ST-1: Sales and Use Tax Registration Application | As needed when starting sales operations | N/A |
| Form ST-9: Sales and Use Tax Return | Last day of the month following the reporting period | N/A |
Massachusetts Business Tax Exemptions
Save More with these MA Biz Tax Exemptions
Sales Tax Exemptions
Property Tax Exemptions
Business Tax Credits
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Why Massachusetts Businesses loves X.TAX
Hear What MA Business Owners Are Saying About Their Experience
Massachusetts Businesses TAX FAQs
Everything You Need to Know About MA Tax Filings with X.TAX
What is the best eFiling software for Massachusetts business taxes?
X.TAX is the best eFiling software for accurate, fast, and stress-free tax filing.
Does X.TAX support all Massachusetts business tax forms?
Yes! X.TAX handles all the essential forms required to keep your business compliant.
How does X.TAX help with tax filing deadlines?
We send automated reminders, so you never miss an important deadline.
Can X.TAX help with Massachusetts tax exemptions?
Absolutely! We help you claim applicable exemptions to save money and time.
Do I need tax expertise to use X.TAX?
Not at all! X.TAX is designed for everyone, with step-by-step guidance and expert support.
