Maine
Reviewed July 2026Federal §453 conformity
Yes — Maine starts from the federal return and taxes installment gain as payments arrive. What changed in 2026 is the top of the schedule: a new 2% surtax applies to income above $1 million, lifting the effective top rate from 7.15% to 9.15%. Like Massachusetts and Minnesota before it, Maine just made the installment schedule a rate-setting tool — a gain spread across years that each stay under the million-dollar line never meets the surtax at all, while a lump sum hands most of the gain to the 9.15% bracket.
Nonresident sourcing
Gain from Maine real estate or a business operating in Maine is Maine income for sellers anywhere — a rule with long reach on this coastline, where so much property is owned from away. The payments keep that character, and the new surtax applies to nonresidents' Maine income above the threshold like anyone else's. Intangible gain generally follows the seller home.
Withholding
Maine's real estate withholding (REW) takes 2.5% of the total price when a nonresident sells Maine real property — measured against the whole transaction, not the year-one cash, so an installment seller should apply for a reduction keyed to the payment schedule before closing. One piece of good machinery: REW amounts are credited against the entity-level withholding a pass-through would otherwise owe on the same income, so the two regimes net rather than stack.
Selling, then moving (residency change)
Maine-source gain stays taxable here after a move; other gain travels with the seller, and no rule accelerates deferred gain at the border. New Hampshire sits next door with no income tax, so the pattern is familiar — and the answer is the standard one: a genuine, documented move before the sale matters for intangible gain, while gain tied to Maine property or a Maine business stays Maine's regardless.
Pass-through entity (PTE) tax election
Maine finally joined the PTE club: an entity-level election is available for the first time starting with the 2026 tax year, after years as one of the last holdout states. For an installment seller this arrives mid-story — payment years before 2026 had no workaround, and payment years from 2026 forward can elect, provided the entity survives and the owners qualify (individuals, trusts, estates, and certain disregarded entities; institutional or corporate owners can spoil eligibility). Because the regime is brand new, its mechanics are still settling — confirm the current rate, deadline, and forms against Maine Revenue Services guidance before modeling any specific year, and do not assume the election covers the new surtax.
Estate and IRD
Maine's estate tax starts around $6.8 million — indexed, and among the higher state thresholds — with rates from 8% to 12%, the gentlest top rate of any estate-tax state, and no Maine gift tax. Two Maine-specific catches: gifts made within a year of death get pulled back into the filing math, and — the one that surprises mainlanders — Maine looks through entities for nonresident estates, so the camp held in an LLC or trust is still Maine property for estate tax purposes. Holding the real estate through an entity does not move it off the Maine return at death.
Planning notes
Maine's list: design the payment schedule against the new $1 million surtax line with room for the seller's other income; file the REW reduction before closing rather than waiting on the refund; treat the new PTE election as an opportunity that needs this year's rules confirmed, not last year's assumptions; and for nonresident owners of Maine property, know that neither an LLC in life nor at death moves the property off Maine's books.
Maine's 2% surtax applies year by year to income above $1 million. A payment schedule that keeps each year under the line holds the rate at 7.15%; a lump sum sends most of the gain to 9.15%. From 2026 forward, note design is the largest Maine tax decision in the deal.
Maine includes Maine property held through a trust, LLC, or pass-through entity in a nonresident's estate. Entity ownership changes neither the estate tax answer at death nor the source of the gain in life — plan the property, not the wrapper.
Maine withholds 2.5% of the full consideration on a nonresident's real estate sale, regardless of how little cash changes hands at an installment closing. The reduction application keyed to the payment schedule belongs in the pre-closing checklist, and REW paid is credited against the entity's nonresident withholding rather than stacking on it.
Educational information, current as of the July 2026 review. State law changes; confirm treatment with a qualified advisor before structuring a transaction.
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