Clear Money Guide
What this state guide covers
A quick view of the questions, practical details and source notes below.
Updated August 12, 2026. Quick answer: Yes — and Maine’s large pension deduction does not help. Maine taxes conversion income at 5.8%-7.15% and expressly denies it the pension income deduction: Maine Revenue Services’ Form 1040ME instructions state that converting benefits from one account to another does not qualify, because you do not receive a retirement benefit at the moment of conversion. The up-to-$48,216 deduction never reaches a conversion, at any age.
Confidence note: high. This is a denial stated in Maine’s own filing instructions rather than an absence of authority — and it is the opposite of what the headline $48,216 deduction suggests.
Why a conversion is a different question from a withdrawal
Almost every state summary answers “how does Maine tax retirement income?” That is a question about distributions. A Roth conversion is not a distribution in the ordinary sense — it is a voluntary election to recognise income now in exchange for tax-free growth later. Whether a state’s retirement exclusion reaches that election is a separate question, and it is the one that decides your bill.
Maine looks like the most generous state on this map and is not. Its pension income deduction is one of the largest in the country, and Maine Revenue Services has said in its own instructions that a conversion does not qualify for it: you have not received a retirement benefit, you have moved money between accounts. The size of the deduction is irrelevant to a converter.
Because there is no exclusion to argue about, the lever that matters in Maine is when and how much — splitting a conversion across tax years, or converting in a year of unusually low income, changes the bill in a way the pension deduction cannot.
What Maine does with the converted amount
State income tax: graduated to 7.15% (3 brackets, 5.8%-7.15%)
How Maine treats IRA and plan income: Pension income deduction up to $48,216 per taxpayer for TY2025 (indexed annually). pegged to max SS benefit), covering pensions, 401(k), and IRA distributions — reduced by Social Security/railroad benefits received. NEW for TY2025+: deduction phases out for federal AGI above $125,000 single/MFS, $187,500 HOH, $250,000 MFJ (indexed after 2025); pre-age-55 non-periodic distributions no longer qualify.
Maine’s own instructions say a conversion is not a retirement benefit.
The pension income deduction of up to $48,216 never reaches conversion income at any age, because Maine treats a conversion as a move between accounts rather than a benefit received. The converted amount is taxed in full at 5.8% to 7.15%, so the only lever left is how much to recognise in each year. That is worth working through with someone.
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What to ask a preparer about Maine
None on eligibility — the 1040ME instructions deny the deduction to conversions. Ask instead how splitting the conversion across two tax years changes the bracket outcome.
Converting around a move
Converting in the year you move into Maine is the case that catches people. Residency at the moment of conversion is what generally determines which state gets to tax it, so a conversion executed a week before a move and one executed a week after can produce different bills.
Four separate taxes change when you move, not one: income tax on withdrawals, treatment of Social Security, estate tax, and inheritance tax. A state that looks good on conversions can be worse on the other three.
The state bill is the smaller half
Whatever Maine does, the conversion is federal ordinary income first. The federal bracket you land in, and whether the conversion pushes you over an IRMAA threshold two years later, will usually move more money than the state line does. The state answer tells you whether to convert here; the federal answer tells you how much to convert at once.
Paying the tax from outside the account matters more than either. Using converted dollars to pay the bill shrinks the balance that was the entire point of converting.
Sources
Authority: 36 M.R.S. § 5122(2)(M-2); Maine Revenue Services 2025 Form 1040ME general instructions and legislative changes bulletin; 36 M.R.S. sec. 4102(5); 36 M.R.S. sec. 4103; 36 M.R.S. sec. 4119.
Compiled from state statutes, session laws and revenue-department publications and adversarially verified in July 2026. Dataset confidence for Maine: high.
This page states what the cited authority says. It is not tax advice, and a conversion large enough to matter is worth putting in front of a preparer who can see your whole return.
Nearby states
Where a state has a large retirement deduction but does not let a conversion use it, the right entry in a calculator is an exclusion of zero — and the Roth conversion state tax calculator then shows what the conversion actually costs at the state and federal levels, and how much of it reaches the Roth.