Maine Tax Portal FAQs

The Maine Tax Portal integrates all the tax types administered by Maine Revenue Services into a single system. It will enable online filing for all tax types administered and significantly expand the online functions that facilitate the taxpayer’s and practitioner’s ability to conduct business electronically with Maine Revenue Services. The system will be implemented over a four-year period in four rollouts, each of which will involve a subset of taxes and programs. The first rollout was completed in October 2021. See the chart below for taxes and programs that are or will become available in the Maine Tax Portal in each rollout.

Schedule for Implementation of Taxes and Programs:

Rollout 1: October 2021
(Completed)
Taxes and Programs Included:

Rollout 2: December 1, 2022

Taxes and Programs Included:

Rollout 3: October 2023

Taxes and Programs Included:

Rollout 4: October 2024

Taxes and Programs Included:

-Animal Waste
-Homestead
-Snow Grooming
-Tree Growth
-Veteran’s
-Veteran’s Organization
-Renewable Energy Equipment
-Renewable Energy Equipment Reimbursement
Mandate
-Business Equipment Tax Exemption (BETE)
-Business Equipment Tax Exemption Mandate
(BETE)
-Central Labor Council

2. Will the Maine Tax Portal change how I file returns, make payments, or respond to notices and bills?

The Maine Tax Portal is meant to improve access and increase capabilities for taxpayers and practitioners to electronically interact with Maine Revenue Services. While we currently offer online filing for certain tax types, the Maine Tax Portal will expand online capability to all tax types administered by Maine Revenue Services. In addition, the Maine Tax Portal will allow taxpayers and authorized third parties to register for taxes, file tax returns, make payments, view bills and notices, and perform online account maintenance activities, such as, adding or removing addresses and closing an account. Expanded online capabilities for Rollout 1 taxes and fees are shown below.

The rollout schedule for all other tax types is available at www.Maine.gov/revenue/portal . Account setup instructions and other tutorials will be published over the coming months at www.Maine.gov/revenue/portal .

MTP capabilities for Rollout 1 Taxes are shown below.

3. What Estate Tax Functions are Available on MTP?

Estate Tax forms are now accepted on the Maine Tax Portal (MTP). Personal Representatives of the estate can file either Form 706ME or the Form 700-SOV (Statement of Value). For information on which of these forms should be filed, click here. If you are a third-party Authorized Representative, filing on behalf of the Personal Representative, you can file the Form 700-SOV (Statement of Value) and Form 706ME as a “non-logged-in activity” on the MTP. To access the MTP, click here.

4. How do I sign up for the Maine Tax Portal for Rollout 1 Taxes and Programs?

Taxpayers and authorized third parties for Rollout 1 taxes and fees may register now to use the Maine Tax Portal at https://revenue.maine.gov/_/.

Once you have navigated to the MTP click on "Create a Username" and follow the instructions to complete your registration. You will be required to provide ID (e.g. SSN, EIN, or TIN), name, address, logon credentials, contact phone number, and email address. Once required information has been provided, MTP will guide you through the confirmation process.

Registration for Rollout 2 taxes will be available in the fall of 2022. See FAQ 5 for key dates for MTP registration recommended by MRS.

5. How do I sign up for the Maine Tax Portal for Rollout 2 Taxes and Programs?

Here is what you need to do:

a. Watch the mail. Invitations to register for the Maine Tax Portal will be mailed to you starting in November 2022.

b. In the meantime, download your account history. For your records, download your filing and payment history from I-File, MEETRS, and EZ-Pay. Once I-File, MEETRS, and EZ-Pay systems are deactivated on May 31, 2023, your historical account information will no longer be available on those platforms.

c. Sign up for an upcoming Maine Tax Portal training webinar. MRS will host free, live training webinars beginning in August 2022 – see schedule online at maine.gov/revenue/portal.

d. After December 1, 2022, remember to set up your Maine Tax Portal account. You will need your Social Security Number or Employer Identification Number, and either a Letter ID (contained in your Maine Tax Portal invitation letter)) OR the dollar amount of a tax return or refund from one of the past three filings. If you haven’t filed taxes in Maine before, you’ll need to register your business with MRS before you can use the portal. Go to maine.gov/revenue/portal, click on the Maine Tax Portal link, and click on Create a Username. See item 6 below for the recommended timeframes for MTP registration for each applicable tax or program.

e. Coordinate with your tax professionals. If you use a third-party tax professional, such as a tax accountant, to prepare your business taxes both you and the tax professional will need to create Maine Tax Portal accounts. Third parties must request access to their clients’ Maine Tax Portal accounts, and clients must authorize access. Step-by-step instructions and resources are available on the MRS website at maine.gov/revenue/portal.

f. Confirm when you should begin using the Maine Tax Portal, based on your tax type and filing frequency - see schedules below.

Sales, Use, and Service Provider Taxes

Filing Frequency

Initial MTP Filing Period

Recommended Date to Begin Using the MTP