Maine Tax Residence

Summary

Maine taxes you as a resident, even when your domicile is in another state, if you maintain a permanent place of abode in Maine and spend more than 183 days of the tax year in the state. Maine Revenue Services counts any portion of a day as a full day. The 184th day crosses the line. A statutory resident pays Maine income tax on all taxable income, whatever its source. The rule does not apply to people in the Armed Forces of the United States. Maine Revenue Services applies the test and expects you to keep records of where you were.

Limit

More than 183 days in Maine (the 184th day crosses the line)

Period

The tax year, for most people 1 January to 31 December

A day counts when

You are in Maine for any portion of the day

Second condition

A permanent place of abode in Maine, kept as a household all year

Law

36 M.R.S. section 5102(5)(B), MRS Rule 807

Run by

Maine Revenue Services

Who it applies to

• People domiciled in Florida or another warm state who return to a year-round house in Maine for the long summer.
• People domiciled in Massachusetts or New Hampshire who own a house on the Maine coast and work from it.
• People who moved to Maine for an open-ended job and still call another state their permanent home.
• Older people who live in a residential care facility in Maine while their domicile is elsewhere.

The rule

Maine's definition of a resident individual is in title 36, section 5102(5) of the Maine Revised Statutes. Paragraph A covers people domiciled in Maine. Paragraph B covers a person who is not domiciled in Maine but maintains a permanent place of abode in the state and spends in the aggregate more than 183 days of the taxable year in the state, unless the person is in the Armed Forces of the United States. An aggregate means all days are added together.

Maine Revenue Services explains the rule in its guidance document Determining Residency Status, revised in February 2026. You are a statutory resident if you spent more than 183 days in Maine during the tax year, with any portion of a day counted as a full day, and you maintained a permanent place of abode in Maine.

The guidance defines a permanent place of abode as a house, apartment, residential care facility, dwelling place or other residence that a person maintains as a household for the entire tax year, whether or not the person owns it. It does not include a seasonal camp or cottage that is used only for vacations, a hotel or motel room, or a dormitory room used by a student during the school year. A place is not permanent if it is kept only during a temporary stay in Maine for a particular purpose.

Maine treats statutory residence as a matter for the whole year. In the guidance, a part-year resident is a person who is domiciled in Maine for part of the year and who is not a statutory resident in that year. A person domiciled in Maine is a resident wherever they spend their time, unless one of two safe harbours applies. The general safe harbour needs no permanent place of abode in Maine, one outside Maine, and no more than 30 days in the state.

Why it exists

Maine has a large number of people who spend the warm months in the state and the winter in the south. Because domicile depends on intention, a rule based only on domicile would lead to many disputes. The statutory test lets Maine tax as a resident anyone who keeps a year-round household in the state and is there for more than half the year, and it tells everyone else exactly which number to stay under.

Counting the days

You count every day of the tax year on which you were in Maine for any portion of the day. Maine counts each of those as a full day.

1. Decide whether you maintain a permanent place of abode in Maine: a residence kept as a household for the entire tax year, not a seasonal camp used only for vacations.
2. Mark each day from 1 January to 31 December on which you were in Maine for any portion of the day.
3. Count the day you arrive and the day you leave as full days.
4. Add up the days of all your stays.
5. Keep records such as planners, calendars, plane tickets, cancelled cheques and card receipts. Maine Revenue Services names these as the usual proof.
6. If the total is 184 or more and you have the abode, you are a statutory resident for the year.

Examples

A summer that runs one day too long

The Walkers are domiciled in Florida and own a house in Camden, Maine, that they keep as a household all year. In 2026 they arrive on 1 May and leave on 31 October. May has 31 days, June 30, July 31, August 31, September 30 and October 31, a total of 184. That is more than 183, so both are Maine statutory residents for 2026 and Maine taxes all their taxable income for the year.

A seasonal camp on a lake

Diane is domiciled in Connecticut and owns a camp on Moosehead Lake with no heating. She uses it only for vacations and spends 190 days there in 2026. A seasonal camp used only for vacations is not a permanent place of abode. Without one she is not a statutory resident, although she was in Maine for more than 183 days.

Arrival and departure days

Felix is domiciled in New Hampshire and rents a flat in Portland, Maine, all year. In 2026 he makes 46 trips, each time arriving on Monday morning and leaving on Thursday evening. Each trip is 4 days, so his total is 184. If he counted only the 3 nights of each trip he would get 138 and think he was safe. Maine counts any portion of a day, so he is a statutory resident.

Exceptions

• A person in the Armed Forces of the United States is excluded from the statutory test by section 5102(5)(B). Maine Revenue Services states that statutory residency does not apply to military personnel.
• A seasonal camp or cottage used only for vacations is not a permanent place of abode.
• A hotel or motel room, and a dormitory room used by a student during the school year, are not permanent places of abode.
• A place kept only during a temporary stay in Maine for a particular purpose is not permanent.
• A person domiciled in Maine can be treated as a nonresident under the general safe harbour (no abode in Maine, an abode elsewhere, no more than 30 days in Maine) or the foreign safe harbour (at least 450 days in a foreign country within 548 days).

Common misconceptions

“I am a snowbird with a Florida driving licence, so Maine cannot treat me as a resident.”

Your licence is evidence of domicile. The statutory test does not look at domicile. A year-round household in Maine and more than 183 days there make you a resident.

“Any property I own in Maine is a permanent place of abode.”

A seasonal camp or cottage used only for vacations is not one. The term means a residence kept as a household for the entire tax year.

“If I become a statutory resident in September, Maine taxes me only from September.”

Maine does not treat a statutory resident as a part-year resident. The guidance keeps part-year status for people domiciled in Maine for part of the year who are not statutory residents.

“Leaving for a few weeks in summer resets the count.”

Days are counted in the aggregate for the whole tax year. Every stay is added, and time away does not remove days already spent.

Questions and answers

Does Maine count the day I arrive and the day I leave?

Yes. Maine Revenue Services counts any portion of a day as a full day, so both travel days count.

How many days can a snowbird spend in Maine?

A person domiciled elsewhere who keeps a permanent place of abode in Maine can spend up to 183 days in the tax year. The 184th day makes them a statutory resident.

Is my lake camp a permanent place of abode?

Not if it is a seasonal camp or cottage that you use only for vacations. A house or apartment that you maintain as a household for the entire tax year is a permanent place of abode, owned or not.

What proof of my days does Maine accept?

Maine Revenue Services says records that confirm where you were commonly include planners, calendars, plane tickets, cancelled cheques, and credit card and other receipts. It tells people who claim fewer than 184 days to keep adequate records.

Does the rule apply to military families stationed in Maine?

No. The statute excludes people in the Armed Forces from the statutory test, and Maine Revenue Services has separate guidance for service members and their spouses.

I am domiciled in Maine but work abroad. Which rule applies to me?

Not this one. For people domiciled in Maine, the safe harbours apply: no more than 30 days in Maine with no abode there and one elsewhere, or at least 450 days in a foreign country within a period of 548 days.

Sources

• Maine Revised Statutes, title 36, section 5102(5), resident individual
• Maine Revenue Services, Determining Residency Status, guidance document (revised February 2026)
• Maine Revenue Services, Residency Safe Harbors for Residents Spending Time Outside Maine, guidance document
• Maine Revenue Services, Individual income tax frequently asked questions

Read more: The 183-day rule: what it means and what it does not.

Other rules for United States

• Arizona Tax Residence 273 days in each calendar year
• California Tax — Visitors 181 days in each calendar year
• California Tax Residence 273 days in each calendar year
• Connecticut Tax — 30 Days or Fewer 30 days in each calendar year
• Connecticut Tax Residence 183 days in each calendar year
• Delaware Tax Residence 183 days in each calendar year
• Hawaii Tax Residence 200 days in each calendar year
• Idaho Tax Residence 270 days in each calendar year

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This page explains the rule and how the days are counted. It is not legal or tax advice. The authority decides each case on its own facts.