New Company Registration for Maine

Disclaimer: This article is not intended to be tax, legal, financial, or HR advice. Rules and regulations change over time and may vary by location. Consult a lawyer, accountant, tax professional, or HR expert for guidance specific to your business.

If you’re starting a business with employees in Maine, you must register for required state taxes before running payroll.

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Register for Taxes with Middesk (Optional)

Homebase partners with Middesk to simplify tax registration.

Middesk can:

• • State Income Tax (SIT)

  • State Unemployment Insurance (SUI)

    Register your business across all 50 states for:

     

• Support ongoing compliance by processing and surfacing state mail for your review

• Handle select Paid Family and Medical Leave (PFML) and local jurisdiction registrations

To get started, sign up through Middesk and review their registration tutorial.

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Taxes You Must Register For in Maine

If you have employees in Maine, you must register for:

• Maine State Income Withholding Tax

• Unemployment Insurance (UI) Tax

• Paid Family and Medical Leave (PFML) — effective January 1, 2025

Each registration is handled separately.

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How Do I Register for Maine State Income Withholding Tax?

Tax Agency: Maine Revenue Services

Tax Type: State Income Withholding Tax

Registration Steps

1. Go to Maine Revenue Services.

2. Select Register a Business.

3. Choose “I want to: Register a Business.”

4. Enter required business details (FEIN, contact information, business type).

5. Submit your registration.

6. Wait for a confirmation letter mailed within 20 business days.

What to Do Next

• Once received, update your Homebase tax profile with your Maine Withholding Account Number.

• This number is required for all interactions with Maine Revenue Services to ensure accurate payroll tax filings.

Need Help?

• Phone: (207) 624-5644

• Email: taxregistration@maine.gov

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How Do I Register for Maine Unemployment Insurance (UI) Tax?

Tax Agency: Maine Department of Labor (DOL)

Tax Type: Unemployment Insurance (UI)

Registration Steps

1. Go to the RE EMPLOY ME portal.

2. Click Register a New Business.

3. Create a username and password.

4. Enter employer and business details.

5. Submit the application.

6. Receive your Employer Account Number (EAN) by mail.

Important Notes

• Employers with both seasonal and non-seasonal employment will receive separate EANs for each.

• After receiving your EAN, update your Homebase tax profile to ensure accurate UI filings with Maine DOL.

Need Help?

• Phone: 1-800-593-7660

• Maine DOL also provides tutorials for additional assistance.

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How Do I Register for Maine Paid Family and Medical Leave (PFML)?

Tax Agency: Maine Paid Family and Medical Leave Program

Tax Type: PFML Contributions

Effective Date: January 1, 2025

Registration Steps

1. Register through the Maine PFML Contributions Portal.

2. Complete your employer setup.

3. Once registered, update your Homebase tax account with your PFML information.

2025 PFML Contribution Rates

• Employers with fewer than 15 employees: 0.5% total

• Employers with 15 or more employees: 1.0% total

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Important to Note

• Update your Homebase account with your Maine Employer Account Number. Your employer account number is required for all Maine DOL interactions to ensure your account is accurate.
• For assistance, call customer service 1-800-593-7660.  The agency also offers tutorials for additional assistance.