Moving from Canada to Maine: Taxes

Maine sits directly across the border from New Brunswick, with Interstate 95 running from the Woodstock/Houlton crossing straight down through Aroostook County into Bangor and Portland. It’s also the closest US state to the Quebec side of the Maritimes corridor for anyone routing through Edmundston. Portland has grown into a real food, tech, and creative economy hub over the last decade, and the state’s biotech and life sciences base, anchored by Jackson Laboratory, IDEXX, and WEX, pulls in a steady stream of cross-border hires. Maine taxes income on a graduated scale, conforms closely to federal rules, and has no local income taxes layered on top. This page covers what’s specific to Maine; the federal cross-border mechanics (departure tax, RRSP, FBAR) are the same as any Canada-to-US move.

Why are people moving through this corridor?

The I-95 corridor runs straight from the Woodstock/Houlton border crossing down through Aroostook County to Bangor and on to Portland, which makes Maine the natural landing spot for a New Brunswick departure and a reasonable one for someone routing through Quebec via Edmundston too. Portland itself has built a real economy beyond the postcard version: a growing food and creative economy downtown, a rising tech and startup scene, and a biotech and life sciences base anchored by Jackson Laboratory, IDEXX, and WEX that pulls in steady cross-border hiring. Further Down East, lobster, fishing, and tourism still carry a large share of the coastal economy, though that’s less often the reason a cross-border professional is relocating.

For most movers coming from the Maritimes, the draw is Portland specifically, not the state as a whole. Aroostook County border towns see plenty of daily crossing traffic, but very little of it is people relocating permanently; the permanent moves skew toward the jobs concentrated two to three hours further south.

How does Maine’s income tax work?

Maine uses three brackets rather than a flat rate: 5.8% on the first slice of income, 6.75% on the middle band, and 7.15% once taxable income clears roughly $58,050 for a single filer (higher for joint filers). Most cross-border movers taking a professional-level salary in Portland or Bangor land in the top bracket fairly quickly, so 7.15% is the number worth planning around for withholding purposes. There’s no separate city or local income tax anywhere in Maine, unlike some states where a metro adds its own layer on top of the state rate. Maine also conforms to federal adjusted gross income as its starting point, which matters directly for the RRSP question below.

Does Maine tax RRSP withdrawals?

Because Maine’s income tax return starts from federal AGI, the treaty-based deferral on RRSP and RRIF growth under Article XVIII flows straight through to the state return with no separate state-level election needed. Withdrawals get taxed by Maine the same way they’re taxed federally: as ordinary income in the year received, once you’re a US resident. TFSA income doesn’t get treaty protection at either the federal or state level, which is the standard reason to close the TFSA before departure rather than carry it across. None of this is unique to Maine; it’s what federal conformity buys you in a state that doesn’t bother writing its own carve-outs.

What happens on the Canadian side when I leave?

The standard departure sequence:

• Deemed disposition at fair market value of worldwide assets
• Final Canadian return from January 1 to the departure date
• Provincial tax at New Brunswick or Quebec rates on departure day, depending on where you’re leaving from
• T1161 and T1243 if applicable
• CRA non-resident notification
• RRSP left open, TFSA closed before the move

What about sales tax and property tax?

Maine’s sales tax is 5.5%, on the lower side for a state that also charges income tax. Property tax is where Maine runs higher than a lot of the Northeast: effective rates typically land between 1.0% and 1.5% of market value, driven by towns funding schools locally the way most of New England does. A homestead exemption reduces the taxable value of a primary residence by $25,000, which softens the bill somewhat for anyone buying rather than renting a home in Portland or a nearby town.

What about estate tax and retirement income?

Maine has its own estate tax, separate from the federal one, with a $6.8 million exemption (indexed annually) and rates from 8% to 12% on the amount above that. There’s no inheritance tax, so the estate tax question only matters for larger estates, but it’s worth flagging for anyone bringing meaningful Canadian assets or a cross-border estate plan into the state. Retirees get one specific break worth knowing about ahead of time: the Pension Income Deduction lets you exclude up to $25,000 of pension income, and that deduction also applies to Social Security income that’s taxable federally. That matters for anyone drawing CPP alongside US retirement income once they’re settled in Maine.

What about remote work across the border?

Maine has its own version of the “convenience of the employer” rule, which taxes a nonresident’s wages as Maine-source if the work is for a Maine-based employer’s convenience rather than the employer’s necessity. It’s a real rule, but Maine applies it less aggressively than New York does, and it mainly comes up for people working remotely for a Maine employer while living somewhere else, not for Maine residents themselves. If you move to Maine and work for a Maine employer, none of this matters since you’re a full resident being taxed on all your income anyway. It becomes relevant if you keep working for a Canadian employer remotely from Maine, which is a source-of-income question worth checking case by case rather than assuming it works the way a similar-sounding rule works in another state.

How does Maine compare to nearby states?

Maine’s top rate of 7.15% sits above New Hampshire’s zero, which is the standout comparison for anyone cross-shopping New England entry points near the New Brunswick border. It’s close to Vermont’s top rate and below Massachusetts’s 9% surtax bracket for very high earners, while offering a smaller, less expensive metro than Boston in exchange. For a New Brunswick household weighing where to land, Maine trades New Hampshire’s zero income tax for lower property-tax pressure than New Hampshire actually has, plus a direct highway run down from the border that neither Massachusetts nor Connecticut can match.

What should I do next?

The Canadian exit follows the standard departure checklist. On the Maine side, the main planning items are confirming which bracket your combined household income lands in, budgeting for the higher property tax rate if you’re buying, and checking the Pension Income Deduction if any part of the move involves retirement income.

• Departure tax checklist, the full Canadian exit sequence
• US-Canada tax treaty explained, the framework behind RRSP deferral and credits
• RRSP and TFSA on a US move, federal treatment and reporting
• First US tax return after moving from Canada, the arrival-year mechanics
• State income tax for cross-border filers, how Maine compares
• Canada departure tax (T1161/T1243), the exit filing detail
• Moving from Canada to New Hampshire, the zero-income-tax neighbor
• Moving from Canada to Massachusetts, the bigger metro option
• Moving from Canada to Connecticut, another Northeast comparison
• Moving from BC to California, the opposite end of the spectrum
• Moving from Canada to Vermont, the neighboring Quebec-border state with higher rates

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.