Taxes the Year You Move to a New State: Part-Year Residency Explained
In the year you move, two states can claim part of your income. Knowing how part-year residency works helps you file correctly and avoid paying tax twice on the same dollars.
One federal return, with moving-related items to check
An interstate move does not create a second federal income tax return. It can still affect items on that return: for example, a new address can change your Marketplace premium tax credit. Report the change to the marketplace and reconcile any advance credits on Form 8962.
Moving expenses are generally not deductible on federal returns. IRS Topic 455 explains the exceptions for qualifying active-duty military moves and, from 2026, certain intelligence-community moves. Some states, such as California and New York, still allow a moving-expense deduction under their own requirements.
Part-year resident returns
If both your old and new states have an income tax, you'll usually file a part-year resident return in each:
- Your old state may tax income during the resident period and income sourced there after you leave. Residence, payment timing and the source rules for each income type matter.
- Your new state generally taxes income during its resident period. It may also tax income sourced there before the move while you were a nonresident.
Some states use total income to determine a rate, then apply a state-specific allocation. Use the tax-year instructions for that state: dividing annual salary by the number of days before and after the move is not a reliable return calculation.
Moving to or from a no-income-tax state
California taxes worldwide income received while you are a resident, plus California-source income during the nonresident period. After a California-to-Texas move, California workdays or deferred compensation can still create California-source income. A Texas-to-California move can also involve California-source income before arrival. Check Form 540NR requirements rather than assuming only the months of residence matter.
When exactly did you become a resident?
States look at where you are "domiciled", meaning your permanent home, and how many days you spend there. Evidence includes:
- the date your lease started or your home purchase closed,
- your new driver license and vehicle registration dates,
- voter registration,
- where your family, doctors and bank accounts are,
- the date you sold or stopped using your old home.
Some states treat you as a full-year resident if you keep a home there and spend more than a set number of days (often 183) in the state. Cutting ties clearly matters if you're leaving a high-tax state.
Avoiding double tax
Income can be taxed by two states when, for example, you earn a bonus in the new state for work done in the old one, or you commute across a state line. Most states give residents a credit for income tax paid to another state on the same income. Some neighboring states go further with reciprocity agreements, so commuters pay only their home state. See live in one state, work in another.
Things that trip people up
- Payroll not updated: reconcile each state’s withholding with its actual liability. Old-state withholding may need a refund claim, but continued source income can still be taxable there. Withholding alone does not establish residence or final tax.
- Deferred pay: bonuses, stock vesting and severance can be sourced to the state where you earned them.
- Selling your old home: gains are usually taxed by the state where the property is.
- Remote work for an out-of-state employer: a few states tax remote employees of in-state employers under a "convenience of the employer" rule; see keeping a remote job below.
Keeping a remote job with an employer in your old state
Wages are normally taxed by the state where you do the work. New York, Pennsylvania, Delaware and Nebraska are exceptions: under a "convenience of the employer" rule, they tax a nonresident who works from home for an employer based in the state as if the work were done at the office. The rule does not apply when your employer requires you to work outside the state.
- New York: days you work from home for a New York employer count as New York workdays. The rule is still in force for 2026; New York's Tax Appeals Tribunal upheld it again in 2025.
- Pennsylvania: days you work from home for a Pennsylvania employer count as Pennsylvania workdays. Its reciprocity agreements still cover the wages of residents of Indiana, Maryland, New Jersey, Ohio, Virginia and West Virginia.
- Delaware: days you work from home for a Delaware employer count as Delaware workdays.
- Nebraska: since 2025 the rule applies only if you also work in Nebraska on more than seven days in the year (LB 1023). Employers withhold Nebraska tax only on days worked in Nebraska, so any remaining Nebraska tax is settled on your nonresident return.
Connecticut and New Jersey have a matching rule that applies only to residents of states with their own convenience rule, and Oregon's covers only nonresident managers of Oregon employers.
If one of these states taxes your remote wages, your new home state usually gives a credit for income tax paid to another state, so you pay about the higher of the two states' tax rather than both. Credit rules differ by state and may not cover every such case, so check your new state's instructions for the credit before you rely on it.
Moving-year filing checklist
For a move during tax year 2026, use 2026 forms when filing in 2027. Current general guidance may still link to 2025 forms; check the year before using a threshold or schedule.
- Record your old and new home states, intended permanent-home change, move date and days spent in each state. Keep leases, closing documents and license or registration changes.
- List each employer, office location and actual workdays by state before and after the move, including remote days and business travel.
- Reconcile W-2 state wage and withholding boxes to pay statements. Keep the dates and amounts of wages and bonuses; identify which service period deferred pay relates to.
- Flag stock compensation, severance, self-employment, rental income, property sales and spouses with different residence/work histories for separate review.
- Find the old and new states' 2026 resident, part-year and nonresident instructions. Determine sourced income, allocation, deductions and credits under each state's method.
- Separate tax liability, payroll withholding and estimated payments. Check whether a return or refund claim is needed even when reciprocity exempts covered wages.
What the relocation calculators do not calculate
RelocateMath's current salary and commuting tools model their stated full-year scenarios. They do not prepare a moving-year return. A single W-2 job and one move can still need payment dates, workday sourcing and resident-credit rules; a move date alone is insufficient. Cases with uncertain domicile, dual residence, equity/deferred pay, multiple moves, business income or different spouse histories need individual review.
For California, start with FTB's part-year and nonresident guidance, including physical workdays and deferred compensation, then the final tax-year Form 540NR instructions. For other states, use the revenue-department sources on the commuting pages. Keep personal returns and identity numbers out of correction emails.
Records to keep
Keep your moving receipts, closing or lease documents, the dates on your new license and registration, and final pay stubs from before and after the move. These records support the income allocation and residence facts used on the returns.
This guide explains general rules. Each state's part-year return has its own instructions; check your state revenue department or a tax professional.