Packing up a house and settling into a new state does not always close the book on the old one’s tax return. A retiree who relocates partway through the year can end up filing in both states for that same year, and a pension or retirement-account withdrawal taken shortly before the move is one of the more common reasons why. The mechanics trace back to how states define residency and to a federal law that protects retirement income only once someone has actually stopped being a resident of the state they left.
A Move Splits the Tax Year, It Does Not Erase Half of It
States that collect income tax generally treat someone who relocates mid-year as a part-year resident of both the old and new state, rather than letting the move wipe out tax obligations from before the change. A part-year resident typically owes tax to each state only on the income received while domiciled there, which sounds like a clean split. In practice, sorting out exactly which dollars belong to which period is where retirees run into trouble, especially when a large one-time payment lands close to the move date.
New York’s own guidance for part-year filers lays out that structure directly: a taxpayer determines residency status for each portion of the year and files accordingly, using a return built specifically for people who were not a resident for the full twelve months.
The stakes of getting that split right vary widely depending on where the move starts and ends. A relocation between two states that both tax retirement income raises the question of dual taxation directly. A move into a state with no personal income tax at all, such as Florida, Texas, Nevada, or Tennessee, changes the calculation but does not eliminate it, since the state being left behind can still tax income received while the retiree was domiciled there, even if the destination state never taxes retirement income going forward.
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The Federal Law Behind “Nonresident” Pension Protection
Congress addressed one piece of this problem in 1996, and the rule still governs today. Under 4 U.S.C. § 114, a state cannot impose an income tax on the retirement income of someone who is “not a resident or domiciliary of such State, as determined under the laws of such State.” The statute covers a wide range of retirement income, including qualified pensions, IRAs, annuities, and deferred compensation plans, so long as the payments meet its definition of retirement income.
That protection only kicks in once residency has actually shifted. The statute measures residency “as determined under the laws of such State,” which means each state’s own domicile and residency tests decide when someone stops counting as a resident there, not the date on a moving truck’s paperwork or a change-of-address form filed with the post office.
States generally look at a combination of factors to decide when domicile actually changed, including where a person spent the greater number of days in the year, where a driver’s license and voter registration were updated, and where a permanent home was maintained. A retiree who lists a house for sale in one state while already living in the new one for months can find that the old state still treats them as a resident until those administrative details catch up, which matters directly for any income received in that gap.
Why a Withdrawal’s Timing Can Matter More Than the Move Date
This is where the two-state tax bill often shows up. If a retiree takes a lump-sum IRA distribution, cashes out a pension, or completes a Roth conversion while still legally a resident of the old state, that income was received during a period when the federal nonresident protection in 4 U.S.C. § 114 did not yet apply. The old state can tax it under its own residency rules, the same way it would tax any other resident’s income, regardless of how soon the move happens afterward.
New York’s Tax Department describes this same boundary from the state’s side of the transaction, stating that certain pension income is excluded from New York tax only for the period a person qualifies as a nonresident, language that protects income received after nonresident status has taken hold and not before. Once a household establishes residency in the new state, that state generally has its own separate claim on income received afterward, which is how a single retirement account can end up generating a return in two different states for one move.
Sorting Out the Overlap Before the Move, Not After
The practical fix is sequencing rather than avoidance: a retiree planning a large withdrawal or conversion around a relocation has reason to work out, in advance, which state will treat the payment as taxable based on residency status at the time of receipt. Waiting until a return is due to sort out which state’s rules applied when the money moved leaves little room to adjust, since the timing of the withdrawal itself, not the timing of the paperwork, is what state tax authorities look at first.
A tax preparer familiar with both the old and new state’s residency rules can typically map out whether a pending distribution should happen before or after a move takes effect, and whether documentation such as a lease termination date or a final utility bill in the old state will matter if either state later asks for proof of when residency changed. Retirement account custodians generally do not make that determination on their own; a 1099-R reporting a distribution reflects the address on file at the time of the payment, not a legal conclusion about which state has taxing authority over it, so the responsibility for sorting out the overlap falls on the retiree and their tax preparer rather than the financial institution issuing the funds.
This article was produced with AI assistance and reviewed by The Financial Wire editorial team.
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David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
