If you moved to another state, you almost always have to pay state taxes to both states for the year of the move, and sometimes to your former state in later years as well. In the move year, each state treats you as a part-year resident and taxes the income you earned while living there. After the move, your old state can still reach income sourced to it, like wages for work performed there or rent from a property you kept. Credits and reciprocity agreements usually prevent you from being taxed twice on the same dollar, but only if you file both returns correctly.
One boundary before anything else: nine states have no individual income tax — Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you left one of these, there’s no final return to file with your old state. If you moved into one, you simply start paying your new state on the date you arrive. Everything that follows assumes at least one of the two states taxes income.
Filing in the Year You Move
Both states treat you as a part-year resident for the year of your move. You file two separate returns. On your former state’s return, you report income earned from January 1 through your move date. On your new state’s return, you report income from the move date through December 31. Most states publish a dedicated part-year resident form.
Complete the former state’s return first. The tax you pay there feeds the credit calculation on your new state’s return, and running them in the other order creates rework.
Both returns are generally due April 15 of the following year. An extension gives you more time to file, not more time to pay. Any balance owed is still due on the original date, and missing it triggers penalties and interest.
Fix Your Withholding and Estimated Payments
If you’re a W-2 employee, give your employer a new W-4 so your paycheck reflects your new state. If you’re self-employed or pay estimated taxes, redirect those payments to the correct state after you move. Continuing to send estimates to the state you left while nothing goes to the state you now live in can produce an underpayment penalty in the new state even though you overpaid the old one.
When Your Old State Can Still Tax You After You Leave
Moving away doesn’t automatically end your obligations to your former state. If you keep earning income connected to that state — what tax authorities call source income — you’ll file a nonresident return there each year you have it. As a nonresident, you’re taxed only on the income sourced to that state, not your total income.
Common source income includes:
- Rental income from property you still own in the state
- Wages for work physically performed there
- Business income from a company that operates there
- Gambling winnings from the state’s casinos or racetracks
Nonresident filing thresholds vary. Roughly half of states with an income tax require a return if you earn any amount there; others set a minimum dollar amount or a minimum number of workdays before the obligation kicks in.
Retirement Income Your Former State Cannot Touch
Federal law bars states from taxing the retirement income of nonresidents. Once you’ve moved out, your former state cannot tax your pension, 401(k) distributions, IRA withdrawals, 403(b) payouts, or government plan distributions.1Office of the Law Revision Counsel. 4 USC 114 – Limitation on State Income Taxation of Certain Pension Income The protection covers qualified retirement plans paid as a series of substantially equal periodic payments over your lifetime or over at least 10 years, and it covers military retired pay. This federal statute overrides any state source-income rule to the contrary, which is why retirees leaving high-tax states can draw on retirement accounts without the former state having any claim.
Remote Work and the Convenience of the Employer Rule
If you kept your job but moved out of state, where you owe tax on those wages depends on your employer’s state. Most states tax wages where the work is physically performed, so working from your new home means your new state taxes the income. Seven states apply a “convenience of the employer” test instead: Connecticut, Delaware, Nebraska, New Jersey, New York, Oregon, and Pennsylvania.2National Conference of State Legislatures. State and Local Tax Considerations of Remote Work Arrangements Under that test, if you work remotely for your own convenience rather than because the employer required it, the employer’s state can still tax your wages as if you came into the office. The main exception is necessity: if the employer mandated the remote arrangement or has no office space for you, the rule generally doesn’t apply.
The practical result is that if you move away from one of those seven states but keep working for an employer based there, both states may tax the same wages. A credit on your new state’s return usually offsets the hit, but if your new state’s rate is lower, you effectively pay the higher state’s rate with no way to recover the difference.
Even outside the convenience-rule states, physically working in a state for more than a handful of days can trigger withholding obligations for your employer. Some states set the threshold as low as 14 or 15 days of in-state presence in a calendar year.
How to Avoid Being Taxed Twice
Credit for Taxes Paid to Another State
When the same income gets taxed by two states, your state of residence generally allows a credit for taxes paid to the other state. Nearly every state with an income tax offers one. The credit is capped at the lower of two numbers: what you actually paid to the other state, or what your home state would charge on that same income.
That cap matters. If your former state charged $3,000 on rental income but your new state would only charge $2,000 on the same amount, the credit tops out at $2,000, and the extra $1,000 is gone. People moving from low-tax to high-tax states usually get a full credit; people moving the other direction often don’t. To claim it, file the nonresident return first, then attach a copy of that return and any required schedules to your resident state return.
Reciprocity if You Now Commute Across a State Line
Roughly 16 states and the District of Columbia participate in reciprocity agreements for people who live in one state and work in another. Where an agreement applies, you pay income tax only to the state where you live; the state where you work agrees not to tax those wages. You file a withholding exemption form with your employer, and your paycheck reflects only your home state’s tax.
Agreements are bilateral — they exist between specific pairs of states, not as a general network. Having moved to a state that borders your employer’s state doesn’t guarantee one exists. Check your specific home-state/work-state combination before assuming you only owe one state.
Proving You Actually Changed States
A state can tax you as a full-year resident under either of two rules, and both can trip you up in a move year.
The first is domicile: your permanent home, the place you intend to return to whenever you’re away. You can only have one domicile at a time, and it doesn’t change just because you spent months somewhere else. Domicile is about intent, but states evaluate intent by looking at what you do.
The second is statutory residency, which is purely mechanical. A majority of states treat you as a statutory resident if you maintain a home there and spend more than 183 days in the state during a tax year. You can be domiciled in your new state and still get caught here, because you kept a residence available in the old one and didn’t leave quickly enough. The result is both states claiming the right to tax your full income for the year.
Changing your domicile requires abandoning the old one and establishing the new one. Swapping a driver’s license while the rest of your life stays put is not enough. The actions that carry weight include:
- Getting a new driver’s license and vehicle registration in your new state
- Registering to vote and casting ballots there
- Buying or leasing a home in the new state while selling or renting out the old residence
- Moving valuable personal belongings — furniture, art, jewelry, family heirlooms
- Transferring professional relationships to doctors, dentists, accountants, and attorneys in the new location
- Updating your address with the IRS by filing Form 8822, and with your financial institutions3Internal Revenue Service. About Form 8822, Change of Address
- Giving up residency-based benefits in your old state, like resident hunting or fishing licenses
No single action is decisive. Tax authorities look at the full pattern. A new license and voter registration look thin if your spouse, children, and family doctor are still in the old state. The strongest evidence is behavioral: where you sleep most nights, where your family lives, which airports you fly out of, and where your most valuable possessions are kept.
Residency Audits
High-tax states actively audit people who claim to have moved to lower-tax jurisdictions. If the state concludes you never actually changed domicile, it can assess back taxes, interest, and penalties for every year it considers you a resident. Auditors verify day counts through cell phone records, credit card transactions, and toll-tag logs, and they examine where your spouse and dependents live, where children attend school, where valuables are insured, and where your professional and social ties sit.
The statute of limitations for a residency assessment is typically three to four years from your filing date, but it stays open indefinitely if you never filed. The burden of proof is on you, so keep a day-by-day log, moving receipts, utility bills, and anything else that documents the move. People who hold onto a home in the former state face the hardest scrutiny; if you keep property there, watch the 183-day threshold carefully, because tripping it while also claiming domicile elsewhere is the fastest way to lose the audit.