Table of Contents
Valor Tax Relief Team
Professional Tax Resolution Specialists
Published: September 3, 2026
Last Updated: September 3, 2026
Key takeaways
- Two returns possible. A permanent mid-year move often requires part-year resident returns in both your former and new states.
- Residency rules vary. Your move date and each state's residency tests determine which income a state can tax—not a simple month count.
- Allocate correctly. Income must be divided using each state's sourcing rules; do not automatically split annual income by months lived in each state.
- Remote work adds complexity. Living in one state while working in another—or remotely for an out-of-state employer—can create additional filing obligations.
- Credits may help. Filing two state returns does not necessarily mean paying tax twice; credits for taxes paid to another state may apply.
- Document everything. Keep W-2s, 1099s, pay stubs, withholding records, lease or closing documents, and move-date evidence.
Why a mid-year move complicates state taxes
Moving to another state during the year can make tax filing more complicated because you may have obligations in both your former state and your new state. Taxpayers who change states mid-year often file a part-year resident return for each state, reporting income according to each state's residency and income-sourcing rules.
The exact requirements depend on the states involved, when you moved, where you earned income, and whether you maintained connections to your former state—such as a rental property, business activity, or part-time residence.
Understanding residency, income allocation, and credits for taxes paid to another state helps you avoid common filing mistakes. This guide explains what to know when filing in two states after moving—including residency determination, income division, remote work, and preventing double taxation on the same income.
Do you have to file taxes in two states if you moved?
If you moved from one state to another during the tax year, you may need to file returns in both states. The most common situation is a part-year resident return in the state you left and another in the state where you established your new home.
When you usually need two state returns
Example: Olivia lived and worked in Illinois from January through June and permanently moved to Colorado in July. If both states impose individual income taxes and she established Colorado residency after leaving Illinois, she generally needs to determine filing requirements in both states. Illinois may tax income attributable to the period when she was a resident; Colorado may tax income after she became a resident.
States do not all calculate part-year resident tax the same way. Some require part-year residents to report total income first and apply an allocation or proration percentage. Others have taxpayers separately identify income attributable to the state.
Do not assume that dividing annual income by the number of months lived in each state always produces the correct result.
When you may only need one state return
Moving does not automatically mean two income tax returns. If you move from a state with an income tax to one without—such as from California to Texas—you may still file with your former state, but your new state may have no individual income tax return to file. See our guide on hidden tax costs in no-income-tax states.
You could also have a filing obligation in only one state if the other state's income threshold, residency rules, or specific circumstances do not require a return. State reciprocity agreements may also allow certain cross-border workers to avoid filing in the state where they work—eligibility varies, so check the specific agreement between the states involved.
What if you moved but kept the same job?
Keeping the same employer after moving can make state tax allocation more complicated. Your W-2 may contain wages and withholding for both states—or it may not, requiring payroll records and pay stubs to determine how much income belongs to each state.
The state where you physically performed work can matter, but sourcing rules differ. Remote employees should pay particular attention rather than assuming the employer's headquarters determines where wages are taxable.
How does moving to another state affect your taxes?
Moving affects state taxes primarily because residency status and income sources can change during the year. A mid-year move can turn a single-state filing into a multi-state filing, while specific consequences depend on the states involved.
Your move date matters
Your move date is important documentation for part-year resident returns. If you lived in your old state from January 1 through June 30 and established residency in your new state on July 1, that date helps determine which income belongs to each residency period.
However, your physical move date is not the only factor. States may look at domicile, intent, and other connections. Keep documentation such as a lease, home purchase records, utility bills, employment records, or other evidence of when you established your new home.
Different tax rules in each state
State tax laws differ substantially—tax rates, filing thresholds, standard deductions, credit structures, and residency definitions all vary. Even part-year resident calculations differ: some states start with full-year income and apply a percentage; others use different allocation methods.
Do not assume the return for your old state works the same way as the return for your new state.
Moving to a no-income-tax state
Moving to a state with no individual income tax changes future obligations but does not erase tax owed before moving. If you lived in California from January through August and moved permanently to Texas in September, Texas has no individual income tax—but you may still have a California filing obligation for the period you were a California resident and for any California-source income taxable after the move.
California part-year residents generally pay tax on worldwide income while California residents and nonresidents pay tax on California-source income. A move to a no-income-tax state does not automatically eliminate tax owed to the state you left.
How to determine your state tax residency after moving
Before preparing state returns, determine your residency status in each state. This is one of the most important steps because residency determines which income a state can tax. See our multi-state residency guide for broader context.
Resident vs. nonresident vs. part-year resident
Full-year resident
Lives in a state for the entire tax year or meets that state's residency requirements.
Part-year resident
Establishes or abandons residency during the tax year—common when moving permanently mid-year.
Nonresident
Does not live in a state but may owe tax because of income sourced there.
Factors that can establish residency
- Primary home location
- Where you spend your time
- Spouse or dependents' location
- Driver's license and voter registration
- Vehicle registration
- Employment location
- Where personal belongings are kept
- Financial and personal connections
- Intent to establish a permanent home
No universal rule says spending a particular number of days automatically determines residency for every state. Some states use day-count thresholds as part of residency tests, but complete rules vary.
Can you be considered a resident of two states?
Residency questions can become complicated when you maintain homes or significant connections in two states. Someone might purchase a home in a new state while retaining a residence in the former state and continuing to spend substantial time there—in such circumstances, both states' rules need consideration.
Getting a new driver's license or moving belongings does not automatically resolve every residency question. When facts are complicated, review both states' rules and consider professional tax advice.
How to file taxes in two states after moving
The process generally involves determining residency, gathering documentation, allocating income, preparing appropriate state returns, and checking whether you qualify for credits for taxes paid to another state.
Determine residency status in each state
Start by determining when residency in the old state ended and when it began in the new state. Review both states' residency rules rather than relying solely on the date you crossed the state line. If you permanently moved during the year, you will often be a part-year resident of both states—but that is not universal.
Gather income and move-related records
Collect documents establishing income and residency periods:
- W-2 and 1099 forms
- Pay stubs and withholding records
- Previous tax returns
- Lease or closing documents
- Utility and employment records
- Business records and move-date proof
Allocate income between the two states
Determine how much income belongs to each state. For wages, allocation may be straightforward if you changed employers when you moved. Same-employer situations may require calculating amounts earned during each residency period using pay stubs or payroll records.
Interest, dividends, capital gains, retirement income, rental income, and business income can have different sourcing rules—and the same principle of month-count division does not necessarily apply to every type of income.
File the appropriate state returns
Once residency and income are determined, file the appropriate return for each state. Many taxpayers complete two part-year resident returns; in other circumstances, one part-year resident return and one nonresident return may apply. Follow each state's instructions—forms and calculations differ.
Check for credits for taxes paid to another state
Determine whether either state offers a credit for income taxes paid to another state. These credits help prevent taxing the same income twice, although rules and limitations vary by state.
Minnesota, for example, allows residents who pay tax to another state on income also taxed by Minnesota to qualify for a credit—though neighboring-state credits and reciprocity agreements may work differently. Wisconsin credits may use a separate form; Michigan or North Dakota withholding may involve filing directly with that state for a refund when reciprocity applies.
How is income divided when you move to another state?
Income allocation is one of the most important parts of a multi-state return because annual income may need to be divided according to residency and sourcing rules.
Wages and salary
Consider a taxpayer who earned $90,000 from the same employer during the year and moved halfway through. If the employer did not provide a state-by-state breakdown, pay stubs, payroll records, and time records can help determine how much was earned before and after the move.
If $45,000 was earned before the move and $45,000 afterward, allocation may be straightforward—but bonuses, commissions, overtime, or other variable compensation can make a simple 50/50 split inaccurate.
Self-employment and freelance income
Self-employed taxpayers face more complicated allocation. A freelancer who earned $100,000 performing services in State A for six months and State B for six months may need to determine which income is attributable to each state under specific sourcing rules.
Do not automatically divide annual business income by months lived in each state. State rules may depend on where services were performed, where the business operates, where customers receive the benefit of services, and other factors. California, for example, has specific sourcing rules for independent contractors noting that where the customer receives the benefit of a service can matter.
Investment, retirement, and other income
Not all income is tied directly to where you work. Interest, dividends, capital gains, pensions, IRA distributions, and other forms of income can have different state tax treatment.
If you received dividend payments while living in your old state and additional payments after establishing residency in your new state, allocation may depend on each state's rules and when income was received. If you sell an investment shortly after moving, do not automatically assume the gain belongs entirely to the new state—review sourcing and residency rules for that income type.
What if you live in one state and work in another?
You do not necessarily have to move to trigger multi-state obligations. Living in one state while earning income in another can also create filing requirements.
State reciprocity agreements
Reciprocity arrangements between certain states can affect how wages are taxed when someone lives in one state and works in another. When applicable, an employee may pay income tax primarily to their state of residence rather than the work state—but agreements apply only to specific income types and have eligibility requirements. Verify that your states have an agreement and that your circumstances qualify.
No reciprocity agreement
Without reciprocity, you may need a resident return in your home state and a nonresident return in the state where you earned income. The resident state may provide a credit for qualifying taxes paid to the other state—generally reducing the possibility of the same income being taxed twice, subject to each state's rules.
Remote workers and state taxes
Remote work has made state tax questions more complicated. If you move but continue working remotely for the same employer, the employer's location is not necessarily the only factor determining your obligations.
California specifically addresses residents who relocate and continue working remotely for California employers. The tax result can depend on where services are performed, residency status, and the nature of the income. If you work remotely after moving, review both states' rules instead of assuming the employer's state controls the treatment.
How to avoid paying taxes twice after moving
Filing two state returns does not necessarily mean paying twice on the same income. State allocation rules and credits determine which state receives tax on particular income and can reduce double taxation when multiple states tax the same income.
Claiming a credit for taxes paid to another state
If State A taxes $30,000 of your income and State B also taxes that same $30,000, State B may allow a credit for qualifying taxes paid to State A—reducing your State B liability.
The credit is not necessarily dollar-for-dollar for every tax paid to the other state. States impose limitations and use their own calculation methods—carefully follow the instructions for the state claiming the credit.
Check your state withholding
Compare state income tax withheld from paychecks with actual state obligations—especially if you moved during the year and your employer continued withholding for your old state after the move, or if payroll changes were not made immediately. Incorrect withholding does not change where income is taxable; it may instead result in an unexpected balance due in one state and a refund in another.
Keep documentation supporting your move
Maintain copies of your lease, closing documents, utility bills, employment records, W-2s, pay stubs, and state tax returns. These documents are especially valuable if a state tax agency later questions when you became or ceased to be a resident.
Common mistakes when filing taxes in two states
Multi-state returns become difficult when taxpayers make assumptions about residency, income allocation, or credits. Understanding common mistakes helps you avoid unnecessary tax problems.
Only filing in your new state
Assuming a move eliminates all obligations to the state you left. Your former state may still require a part-year return, and you may have continuing obligations for income sourced there after moving.
Reporting all income to both states
Reporting 100% of annual income as taxable in both states without applying allocation or proration rules. Some returns begin with total federal income and calculate an allocation percentage; others require directly identifying state-attributable income.
Forgetting nonresident income
Moving away does not eliminate a state's ability to tax income sourced there—such as rental income from property in your former state or business activities creating income sourced to that state.
Missing tax credits
Overlooking available credits because each state return seems separate. If two states tax the same income, check whether your resident state allows a credit for taxes paid to another state.
There is no single nationwide state-income-tax residency test. States have different definitions, filing thresholds, allocation methods, and sourcing rules—a rule that applies in one state may not apply in another.
How Valor Tax Relief can help
Filing taxes in two states can become especially complicated when a taxpayer has unfiled returns, unpaid tax balances, penalties, interest, or state or federal tax notices.
In these situations, understanding how much is owed and determining which relief options may be available can be more important than simply completing a return—especially when a move caused missed deadlines or incorrect withholding in one or both states.
Valor helps taxpayers facing federal and state tax problems evaluate their situations and explore potential resolution options. If an interstate move contributed to unresolved tax debt or filing issues, professional guidance can help you understand obligations and determine an appropriate path forward—including back tax relief and payment arrangements.
Frequently asked questions
Tax help for people who owe
Filing taxes in two states after moving can seem complicated, but understanding your residency status, allocating income correctly, and reviewing each state's filing requirements can help make the process easier.
Start early—gather move documentation before tax season, confirm whether your employer updated state withholding after your relocation, and review whether either state offers part-year resident forms or worksheets that simplify allocation.
If you are unsure about your state tax obligations or are dealing with unpaid taxes or state tax issues after a move, consider guidance from a qualified tax professional. Visit our FAQ hub or contact Valor for a free consultation.
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