File Your Maine Business Taxes Online Accurately in Minutes
X.TAX provides expert Business tax solutions for filing all your ME business tax forms, 100% accuracy, Audit Protect and Assist Filing.

Maine Business Taxes Made Easy
Stay compliant and maximize savings with ME tax benefits.
Maine offers business-friendly tax policies with various sales tax exemptions, property tax relief, and income tax credits. Whether you’re a corporation, partnership, LLC, or sole proprietor, ME provides job creation incentives, investment tax credits, and historic rehabilitation benefits to support business growth.
Maine Business Tax Forms
Know ME Business Tax Forms, which required for your business to stay compliant with Maine regulations and avoid penalties.
Corporations
- Form 1120ME – Corporate Income Tax Return
- Form 1120ES-ME – Vouchers for Estimated Tax Payments
- Form 1120EXT-ME – Extension Payment Voucher
Partnerships
- Form 1065 – U.S. Return of Partnership Income
- Form 3 – Partnership Return of Income
LLCs
- Form 1 – Annual Franchise Tax Report for LLCs
- Form PW-1 – Registration for Sole Proprietorships (as needed)
Estates and Trusts
- Form 1041 – U.S. Income Tax Return for Estates and Trusts
- Form FID-TAX – Maine Fiduciary Income Tax Return
File ME Business Taxes in Four Simple Steps
X.TAX makes tax filing smooth, secure, and error-free.
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.
Never Miss a Maine Tax Deadline
Stay ahead with your ME Biz Tax with X.TAX reminders.
Business Type | Forms | Due Date |
---|---|---|
Corporations | Form 1120 | April 15, 2025 |
Form 1120S | March 15, 2025 | |
Form 5 | April 15, 2025 | |
Partnerships | Form 1065 | March 15, 2025 |
Form 3 | March 15, 2025 | |
Form 1CNP | April 15, 2025 | |
LLCs and Sole Proprietors | Form 1 | April 15, 2025 |
Form Corp-ES | Quarterly payments due on April 15, June 15, September 15, and January 15 | |
Form PW-1 | April 15, 2025 | |
Estates and Trusts | All necessary forms for Wisconsin estate and trust filings are typically | April 15, 2025 |
Maximize Savings with ME Business Tax Exemptions
Claim Business tax benefits available in Maine.
Sales Tax Exemptions
Property Tax Exemptions
Income Tax Credits
Why Maine Businesses Trust X.TAX
Filing your taxes has never been this easy.
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.
See Maine Businesses Rely on X.TAX
Hear from business owners across ME.
Filing Maine business taxes was effortless with X.TAX. Their platform is accurate and efficient!
— John R.
We saved thousands by claiming our manufacturing exemptions. X.TAX made it simple!
— Laura T.
The filing accuracy tools helped us avoid costly mistakes. Highly recommended!
— David K.
QuickBooks integration saved us hours of manual work. Best tax software we’ve used!
— Sarah W.
Maine Business Tax FAQs
Find answers to common ME Biz tax questions.
What is the best e-filing software for Maine business taxes?
X.TAX is designed for Maine businesses, offering secure, fast, and reliable tax filing.
What forms do I need to file ME business taxes?
We provide all essential forms for corporations, partnerships, LLCs, and estates. See the full list above.
What are the key Maine business tax deadlines?
Most filings are due May 15, 2025, with extensions available until November 15, 2025.
What tax exemptions can Maine businesses claim?
Maine offers sales tax exemptions, property tax relief, and investment tax credits for qualifying businesses.
How does X.TAX ensure filing accuracy?
Our smart verification tools scan filings for errors and compliance with Maine tax laws.
Is my data secure with X.TAX?
Yes! X.TAX uses robust encryption to protect your business tax data.