This article reflects federal rules and state rules as of June 2026 and covers tax year 2025 (returns filed in the 2026 season). Tax law changes — confirm current figures with the IRS and your state tax agency before you file.
Quick Answer
You file one federal return plus a part-year resident return in each income-tax state you lived in during 2025. Split your income by the dates you lived in each state, claim a credit for taxes paid to another state if needed, and you avoid being taxed twice on the same dollars.
If you moved across state lines in 2025, your federal tax life barely changes — you still file a single Form 1040 — but your state tax life can split in two. The immediate snag is that two states may both want to tax money you earned, and if you file them in the wrong order or skip an allocation step, you can hand over hundreds or even thousands of extra dollars you never owed.
This matters because Americans move constantly: the U.S. Census Bureau reports that about 28.2 million people changed residence in a recent year, and a large share crossed state lines. Get the order and the math right and you keep your money; get it wrong and you either overpay or trigger a notice from a state tax department months later.
- 📋 How to decide whether you file a part-year, nonresident, or resident return in each state.
- 🧮 A step-by-step worked example that splits real wages between two states so you can copy the math.
- 🔁 How the credit for taxes paid to another state stops the same income from being taxed twice.
- 🏝️ What changes when you move to or from one of the nine no-income-tax states.
- ⚠️ The seven costliest filing mistakes movers make — and exactly how to avoid each one.
What “Filing Taxes After Moving” Actually Means
Moving to another state creates a residency question, and residency is the hinge that every state tax return turns on. A resident is taxed on all income, no matter where it was earned. A nonresident is taxed only on income sourced to that state. A part-year resident is a hybrid: a resident for the months you lived there, and treated like a nonresident for the rest of the year.
When you move mid-year, you usually become a part-year resident of two states. Each state taxes the income you earned while you were its resident, plus any income sourced from inside its borders even after you left. The federal government does not care which state you live in for income-splitting purposes — the IRS collects on your worldwide income through one Form 1040 regardless of how many times you moved.
The key entities in this process are your two state departments of revenue (sometimes called the Franchise Tax Board, Department of Taxation, or Comptroller, depending on the state), your W-2 with its state boxes 15–17, and the credit for taxes paid to another state, which is the safety valve that prevents double taxation. Understanding how these pieces connect is the difference between a clean filing and a costly one.
The consequence of misreading your residency status is direct: if you file as a full-year resident of your new state but earned wages in your old state, you may overpay the new state and forget to reclaim withholding from the old one. The fix is to map your move to a calendar and assign every dollar to the period and place it was earned.
Which Situation Applies to You?
The right return depends on your specific move. Find your situation below, then read the matching section.
- You moved between two income-tax states and changed jobs. You file a part-year return in each state and split income by residency dates. Read The Standard Part-Year Move.
- You moved but kept your old job (remote or commuting). You may owe the old state as a nonresident and the new state as a resident, then claim a credit. Read When You Keep Income From Your Old State.
- You moved to a no-income-tax state (Texas, Florida, Nevada, etc.). You file a part-year return only in the state that taxes income. Read Moving To or From a No-Income-Tax State.
- You are active-duty military. Special residency rules and the moving-expense deduction may still apply. Read Federal Rules, Moving Costs, and the Military Exception.
- You have pension, Social Security, or investment income. Allocation rules differ from wages. Read How Different Income Types Get Split.
The Standard Part-Year Move: Two Income-Tax States
The most common move is from one income-tax state to another, with a job change along the way. In this case you file a part-year resident return in each state, and each state taxes only the income you earned while you lived there. You report your total federal income first, then allocate a slice to each state based on your residency dates and where the income was earned.
Most states start their return with your federal adjusted gross income (AGI) and then ask you to subtract the part that belongs to the other state. Some states use a ratio method: they calculate tax as if you were a full-year resident, then multiply by the percentage of income that belongs to that state. Both methods reach a fair split, but you must follow the exact one your state uses, because mixing methods produces the wrong tax. The TurboTax guidance on part-year returns confirms you generally file in both states when each collects income tax and you earned money in each.
The deadline is the same as your federal return: April 15, 2026 for the 2025 tax year, for both states in most cases. Miss it and each state can charge its own late-filing penalty plus interest, stacked on top of any federal penalty. If you need more time, you file a state extension separately — a federal extension does not automatically extend every state.
Worked Example: Splitting Wages Between Two States
Meet Maria, who lived in Georgia from January 1 through June 30, 2025, then moved to South Carolina and started a new job there for the rest of the year. Her total 2025 wages were $80,000 — $40,000 earned in Georgia and $40,000 earned in South Carolina.
Maria files a Georgia part-year return reporting the $40,000 she earned while a Georgia resident. She files a South Carolina part-year return reporting the $40,000 she earned after moving. Because the income was earned in two different periods with no overlap, no dollar is taxed twice, and she does not need the credit for taxes paid to another state. Each state taxes its own $40,000 slice, and her combined state tax is roughly what one state would have charged on the whole amount, split in two.
The lesson: when your income cleanly separates by date and location, a straight part-year split is all you need. The credit only enters the picture when the same income is claimed by two states at once, which is the next scenario.
When You Keep Income From Your Old State
This is where movers lose money. If you move to a new state but keep earning income sourced to your old state — a remote job still tied to the old employer, rental property left behind, or a business operating there — the same income can be claimed by both states. Your new resident state taxes all your income, and your old state taxes the part sourced from within its borders.
The solution is the credit for taxes paid to another state, claimed on your resident state return. As the TaxAct explanation notes, your resident state usually gives you a credit for tax you paid to the nonresident state on income both states taxed, so you are not billed twice. The credit is generally limited to the lesser of what the other state charged or what your home state would have charged on that same income.
Order matters here. You must complete the nonresident state return first, because you need the tax figure from it to calculate the credit on your resident return. The FreeTaxUSA walkthrough lists exactly what to carry over: the income taxed by both states, the tax due to the nonresident state, and the tax withheld. Reverse the order and your software fills the credit with an estimate that is almost always wrong.
Worked Example: The Credit for Taxes Paid to Another State
Meet James, who moved from New York to Florida on July 1, 2025, but kept working remotely for his New York employer all year, earning $120,000. Florida has no income tax, so this is simple — but swap Florida for New Jersey to see the credit in action.
Suppose James moved from New York to New Jersey on July 1 and kept his New York job. For the second half of the year he is a New Jersey resident (taxed on the $60,000 earned then) but the income is still New York-sourced, so New York taxes it too. Say New York charges $3,600 on that $60,000 and New Jersey would charge $3,300 on the same slice. New Jersey gives James a credit for the lesser amount, $3,300, wiping out his New Jersey tax on that income — he still owes the $300 difference to New York, but he is not taxed twice on the full $3,300.
Moving To or From a No-Income-Tax State
Nine states levy no broad personal income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming, per AARP’s 2026 overview. If your move involves one of these, your filing job gets simpler, because you only file a state income-tax return for the state that has one.
If you move to a no-income-tax state mid-year, you file a part-year return only in your old (taxing) state for the income you earned while living there. You owe nothing to your new state and file no state income-tax return there — though Washington taxes certain long-term capital gains above a threshold, so that one is not fully tax-free for investors. The answer “this state does not tax wage income” is complete, not a gap.
If you move from a no-income-tax state to a taxing one, you file a part-year return only in your new state for income earned after the move. Be careful about domicile: a state like Texas or Florida may not tax you, but your new state can scrutinize when your residency truly began, and a sloppy move date can shift more income into the taxing state than necessary. Keep proof of your move date — a lease, a closing statement, a driver’s license change — to defend the split.
| No-Income-Tax Move | What You File |
|---|---|
| Move to Texas/Florida from a taxing state | Part-year return in old state only, for pre-move income |
| Move from Nevada to a taxing state | Part-year return in new state only, for post-move income |
| Move to Washington with large stock-sale gains | No wage return, but possible state capital-gains tax |
Federal Rules, Moving Costs, and the Military Exception
Your federal return is unaffected by a state move in terms of how income is split — you file one Form 1040 reporting all 2025 income. There is no federal “part-year” concept for a domestic move, and you do not divide your federal tax between states.
The moving expense deduction is suspended for almost everyone for tax year 2025. The IRS confirms that for tax years beginning after 2017, you cannot deduct moving expenses unless you are an active-duty member of the Armed Forces moving due to a military order. This suspension came from the Tax Cuts and Jobs Act and runs through the 2025 tax year, as reported in 2026 coverage.
The one exception is active-duty military with a permanent change of station, who can still deduct unreimbursed moving costs using Form 3903 as an adjustment on Schedule 1. Service members also get favorable residency rules under the Servicemembers Civil Relief Act, which can let them keep their home-state domicile despite orders to move. If you are not military, expect no federal break for your move costs — budget for them out of pocket.
How Different Income Types Get Split
Wages are the easy case, but other income follows its own sourcing rules, and getting these wrong is a common error. Each type attaches to a period (when you were a resident) or a place (where the income was generated), and the two states divide it accordingly.
Wages are sourced to where you physically perform the work, then split by residency dates. Self-employment income is sourced to where the work is done, so a freelancer who moves splits earnings by where they sat while working. Rental income is always sourced to the state where the property sits, even after you move away — so a landlord who leaves the property behind keeps filing a nonresident return there.
Investment income — interest, dividends, and capital gains — is generally sourced to your state of residence on the date you received it. So if you sell stock after moving, the gain usually belongs to your new state. Retirement income is protected by federal law: under the federal pension source rule, a state cannot tax the pension or 401(k) income of someone who no longer lives there, so your new resident state taxes it, not the old one.
The misconception here is that all income splits by date. It does not — rental and business income split by location, and that distinction can move thousands of dollars across a state line. When in doubt, ask whether the income is tied to a place or a time, and source it accordingly.
Step-by-Step: How to File a Two-State Return
Follow this order to keep your numbers consistent and avoid overpaying.
- Finish your federal Form 1040 first. Every state return starts from your federal AGI, so this must be locked in before you touch a state return.
- Gather your W-2s and check boxes 15–17. These show which state your employer withheld for; a wrong state code here is the most common cause of misallocated withholding.
- Pin down your exact move date with a lease, closing document, or license change, because this date draws the line between the two states’ income.
- Complete the nonresident state return next if any income is taxed by a state you no longer live in — you need its tax figure for the credit.
- Complete the resident (or second part-year) state return last, and claim the credit for taxes paid to another state where income overlapped.
- Reconcile withholding. If too much was withheld by your old state, the part-year return is how you reclaim it as a refund.
- File both states by April 15, 2026, or file separate state extensions if you need more time.
Scenario Tables: Three Common Moves
Scenario 1 — Clean job change between two taxing states
| Your Move | What Happens at Filing |
|---|---|
| Lived in Ohio Jan–May, moved to Kentucky, new job | File part-year in both; each taxes only its months; no double tax, no credit needed |
| Income splits cleanly by date | Reclaim any over-withholding from Ohio on its part-year return |
Scenario 2 — Moved but kept the old-state job
| Your Move | What Happens at Filing |
|---|---|
| Moved from Virginia to Maryland, same Virginia employer | Virginia taxes the sourced wages; Maryland taxes you as resident |
| Same income hit by both states | Claim credit for taxes paid to Virginia on the Maryland return |
Scenario 3 — Moved to a no-income-tax state
| Your Move | What Happens at Filing |
|---|---|
| Moved from California to Texas mid-year | File a California part-year return for pre-move income only |
| No Texas income-tax return exists | Keep proof of move date to defend when California residency ended |
Named Examples
Priya lived in Illinois until August 2025, then moved to Wisconsin for a new job. She files an Illinois part-year return for her January–August wages and a Wisconsin part-year return for her September–December wages. Because her income split cleanly by date and place, she owes each state only its share and needs no credit. Her one task is confirming her old employer stopped Illinois withholding after she left, so she does not over-withhold.
Daniel moved from Oregon to Arizona in March 2025 but kept consulting for Oregon clients remotely all year. Oregon taxes the income sourced to its clients; Arizona taxes him as a resident on the same income. He completes his Oregon nonresident/part-year return first, then claims the credit for taxes paid to Oregon on his Arizona return, erasing the double tax.
Lena, an active-duty Air Force officer, received a permanent-change-of-station order moving her from Colorado to Nevada in 2025. She deducts her unreimbursed moving costs on Form 3903 — a break almost no civilian can use — and, because Nevada has no income tax, files only a Colorado part-year return for her pre-move pay.
Mistakes to Avoid
- Filing only in your new state. You forget to reclaim withholding from your old state and leave a refund on the table.
- Doing the resident return before the nonresident return. Your credit for taxes paid to another state is calculated on a guess, producing the wrong tax.
- Splitting all income by date. Rental and business income source by location, so a date-only split can misassign thousands of dollars.
- Ignoring W-2 boxes 15–17. A wrong state code means withholding lands in the wrong state and your refund is delayed.
- Assuming a federal extension covers your states. Most states require their own extension; skip it and you owe a state late-filing penalty.
- Picking a vague move date. Without proof, a state can push your residency window and tax more of your income.
- Forgetting old-state-sourced income after you leave. Rental property or a remaining business still triggers a nonresident return, and missing it invites a state notice.
- Claiming the suspended moving deduction as a civilian. Only active-duty military qualify for 2025; claiming it otherwise risks an IRS adjustment.
Do’s and Don’ts
- Do finish your federal return first, because every state return builds on your federal AGI.
- Do complete the nonresident state before the resident state, so your credit uses real numbers.
- Do keep dated proof of your move, because it anchors the income split if a state asks.
- Do check that your employer switched state withholding after you moved, to avoid a misrouted refund.
- Do file a separate state extension if needed, since a federal extension rarely covers states.
- Don’t assume two states taxing the same income means you pay twice — the credit usually prevents it.
- Don’t split rental or business income by date, because it sources by location instead.
- Don’t ignore a part-year return in your old state, because that is how you reclaim over-withholding.
- Don’t guess your residency start date, since a wrong date shifts your tax bill.
- Don’t skip professional help on a complex multi-state year, because the cost of an error often exceeds the fee.
Pros and Cons of Handling a Multi-State Return Yourself
- Pro: DIY tax software costs roughly $40–$60 per extra state return, far less than a preparer, so a simple two-state move is cheap to file yourself.
- Pro: Doing it yourself forces you to learn your residency dates and income sources, which protects you in future moves.
- Pro: Software auto-fills the credit for taxes paid to another state once you complete returns in the right order, reducing math errors.
- Pro: You control the timeline and can file the moment both states open, speeding any refund.
- Pro: You avoid sharing sensitive financial details with a third party.
- Con: Software estimates for the other-state credit are often wrong until you fix them, and missing that step costs real money.
- Con: Sourcing rules for rental, business, and investment income are subtle, and DIY tools assume you know them.
- Con: A mistake can trigger a state notice months later, with penalties and interest attached.
- Con: No professional is standing behind your numbers if a state audits the split.
- Con: Complex situations — three states, a business move, or large capital gains — can exceed what consumer software handles cleanly.
When to Call a Professional
This article is educational and is not a substitute for advice from a licensed tax professional who knows your specific situation. A clean two-state W-2 move is usually fine to file with quality software. But bring in a CPA or tax attorney if you moved more than twice in 2025, ran a business across state lines, sold a home or large investments around your move, or received a notice from a state department of revenue. A professional multi-state return typically runs a few hundred dollars and up — money well spent when a single sourcing error could cost more.
What to Do Next
- Confirm your exact 2025 move date and gather proof — a lease, closing statement, or license change.
- Collect all W-2s and 1099s and check the state boxes for correct withholding.
- Finish your federal Form 1040 before opening any state return.
- File the nonresident state return first, then the resident or second part-year return, claiming the credit where income overlapped.
- Submit both state returns by April 15, 2026, or file separate state extensions if you need more time.
- Save copies of both state returns together, since each references the other’s figures if a state ever asks.
FAQs
Do I have to file taxes in two states if I moved?
Yes — if both states have an income tax and you earned money in each, you file a part-year resident return in both for tax year 2025, splitting income by your residency dates.
Will I be taxed twice on the same income?
No, not in most cases. The credit for taxes paid to another state on your resident return offsets tax the other state charged on the same income, generally eliminating double taxation.
Which state return do I complete first?
The nonresident state return first. You need its final tax figure to calculate the credit for taxes paid to another state on your resident return — reversing the order produces the wrong credit.
Do I file a separate federal return for each state?
No. You file one federal Form 1040 for tax year 2025 covering all your income, regardless of how many states you lived in.
Can I deduct my moving expenses on my 2025 taxes?
No, not unless you are active-duty military with a permanent-change-of-station order. The IRS notes the deduction is suspended for everyone else through tax year 2025.
What if I moved to a state with no income tax?
You file only in the taxing state. You report income earned before the move on your old state’s part-year return and owe nothing to your new no-income-tax state for 2025 wages.
How do I split my income between the two states?
By residency dates for wages, and by location for some income. Wages split by when you lived in each state; rental and business income source to where the property or work is, not when you moved.
When are my two state returns due?
April 15, 2026, in most states for the 2025 tax year — the same as your federal return. File a separate state extension if you need more time, since a federal extension rarely covers states.
Does my old state still tax me if I keep my job there remotely?
Yes, often. Income sourced to your old state can remain taxable there even after you move, but your new resident state’s credit usually offsets that tax so you are not billed twice.
What happens if I file in only one state?
You risk a penalty or a lost refund. Skipping your old state’s part-year return can forfeit over-withheld refunds, and skipping the new state’s return can trigger a notice with penalties and interest.
How is investment income taxed after I move?
Generally by your state of residence when you receive it. A capital gain realized after your move usually belongs to your new state, not the state you left, for tax year 2025.
Do retirees pay old-state tax on pensions after moving?
No. Under federal law, a state cannot tax the pension or 401(k) income of a former resident, so only your new resident state taxes it.
This article reflects federal and state rules as of June 2026 for tax year 2025. Tax law changes — verify current figures with the IRS and your state tax agency, and consult a licensed professional for your specific situation.