Maine Payroll Tax Registration and Information for Justworks Payroll

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Paying employees in Maine

When hiring employees in new states, you will need to register for relevant state tax accounts to facilitate their payment. In Maine, you must be registered with the Maine Revenue Services office (income tax withholding) and the Maine Department of Labor's Bureau of Unemployment Insurance – unemployment tax

Alternatively, Justworks Payroll can handle the registration process for you. We offer state tax registration services to assist with registering your business in new states. To request registration, please contact us at support@payroll.justworks.com.

 

Maine Accounts Registration and Rate Info

Registering for a Withholding Tax Account:

To register online:

  • Visit the Maine Tax Portal.
  • Scroll to the “Businesses” section and click "Register a New Business."
  • Read the "Before You Begin" information.
  • When ready, click "Next" at the bottom-right of the page.
  • Complete all remaining prompts.

After registering online, the agency will mail you a letter with your withholding account number in about 20 days. The last two digits of your withholding account number are usually "00," unless it has been reissued to your business.

If you have questions about registration, contact the agency at (207) 624-9784.

Registering for an Unemployment Tax Account:

To register online:

You will receive your unemployment "Employer Account Number" and "Contribution Rate" within 5–7 business days after registering.

If you have any questions about registration or need help locating your tax account information, contact the agency at (207) 621-5120.

 

Already Registered? Locate This Information

Locate Your Withholding Tax Account Number (Account ID):

If you've previously processed payroll in Maine, you can locate your Account ID by:

  • Checking the "New Registration" letter you initially received.
  • Looking at the upper-right corner of any correspondence from the agency for your "Account ID."
  • Signing in to the Maine Tax Portal and viewing your "Account ID."

If you're unable to find it:

  • Call the Withholding Tax Division at (207) 626-8475, or
  • Email them at withholding.tax@maine.gov.

Locate Your Employer Account Number  and Rate:

If you've processed payroll in Maine before, you can locate your "Employer Account Number" and Tax Rate by:

  • Checking notices from the Maine Department of Labor (e.g., Form ME UC-1), or
  • Contacting the agency at (207) 621-5120.

 

Entering State Tax Info in Justworks Payroll 

Once you registered with the State and have a valid ME address added to your company’s offices, you can add your account info in Justworks Payroll by navigating to: 

  1. Company > Settings in the left navigation bar
  2. Under ‘Company tax info’ click into “Maine” to edit the state tax information 

 

In your Justworks Payroll account, you’ll want to enter your ME Account ID, Employer Account Number and Tax Rate.

 

Third-party admin access 

As your payroll provider, Justworks Payroll will utilize the provided account information to manage and report your ME tax liabilities. Occasionally, the state may issue notices related to payroll taxes. 

Justworks Payroll can examine these notices if granted Third-party admin access to your ME state tax account. During onboarding, we will request that you sign state specific TPA forms, which authorizes us to handle and report your taxes to the state. 

Why is this important?

Justworks Payroll calculates tax liabilities as part of payroll processing. If we cannot access your ME state tax accounts, we must return any unremitted tax liabilities to your company bank account, requiring you to remit and file your company’s state taxes manually.

Disclaimer

This material has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for, legal or tax advice. If you have any legal or tax questions regarding this content or related issues, then you should consult with your professional legal or tax advisor.