How to file taxes if you lived in two states this year

Why Filing Taxes Across Two States Can Be Tricky

Living in two states during the same tax year is common for many Americans, whether due to a job change, relocation for school, military service, or remote work. This situation often makes you a part-year resident of one or both states, meaning you may need to file tax returns in multiple states while also handling your federal return. Each state has its own rules for residency, income sourcing, and filing requirements, so your tax obligations depend on factors like where you lived, worked, and earned income.

This guide walks you through the practical steps to handle your taxes correctly. Start by gathering your documents and understanding your residency status. Always verify details on IRS.gov for federal rules and your state tax agency websites for state-specific guidance. This is general information, not personalized tax advice, and rules can change, so eligibility depends on your situation.

Step 1: Gather Essential Documents First

Before diving into forms or software, collect all relevant records. Missing documents can delay filing or trigger notices from the IRS or state agencies.

Key items include:

• W-2 forms from all employers, showing wages, withholding for federal and state taxes, and any local taxes.
• 1099 forms (like 1099-NEC for freelance work or 1099-INT for interest) that indicate income sourced to specific states.
• Prior-year tax returns for both states to check carryovers or prior residency.
• Records of your move date, such as lease agreements, utility bills, or driver's license changes, to prove residency periods.
• Bank statements, mortgage interest (Form 1098), property tax bills, and charitable receipts for deductions that might split between states.
• Pay stubs or employer letters confirming work locations, especially for remote workers.

Keep digital and paper copies in a secure folder. Scan them safely and avoid sharing sensitive info like Social Security numbers via email. If you use tax software, upload these directly through secure portals.

Document Checklist for Multi-State Filers

Use this table to track what you have. If a form is missing, contact the issuer promptly, as replacements can take time.

Step 2: File Your Federal Return Before States

Federal taxes come first because state returns often pull data from your Form 1040. Multi-state living does not change your federal filing status or most deductions, but it affects how states tax your income.

• Download Form 1040 and instructions from IRS.gov/forms-instructions.
• Report all income nationwide, regardless of state.
• Use reputable tax software like TurboTax or H&R Block, which handles multi-state scenarios, or free options like IRS Free File if your income qualifies.
• E-file for faster processing and refunds; paper filing takes longer.

After federal acceptance (check via IRS "Where's My Refund?" tool), move to states. Save your federal PDF and e-file confirmation.

Step 3: Determine Your Residency Status in Each State

States classify you based on domicile (your permanent home intent) or statutory residency (days spent there). You might be:

• Full-year resident: Lived there all year, taxed on all income.
• Part-year resident: Lived there part of the year, taxed on income earned while resident plus sourced income.
• Nonresident: Lived elsewhere but earned state-sourced income (e.g., rental property), taxed only on that.

Check each state's tax agency site for definitions. For example:

• Many states use a 183-day rule for residency.
• Remote workers might owe taxes where their employer is located or where they physically worked.

Track days in each state with a calendar or app. Examples:

• Moved from California to Texas on July 1? You're a part-year resident of both.
• Lived in New York but worked remotely for a Florida company? Check NY sourcing rules.

Do not assume reciprocity agreements (like between neighboring states) eliminate double filing; they often only credit taxes paid.

Step 4: Identify Which State Returns You Need to File

You may file in zero, one, both, or rarely more states. Factors:

• Income above the filing threshold (varies by state, e.g., $4,000-$13,000 for singles).
• State-sourced income like wages, rentals, or sales.
• Withholding already taken (file to claim refunds).

Visit each state tax website (search "[state] department of revenue") for thresholds and forms. Common scenarios:

• Both states: Part-year in each with income in both.
• Resident state + source state: Full-year in one, but income from the other.

Prepare separate returns for each state, even if using software that generates them together.

State Filing Types Explained

Part-Year Resident Returns

File if you moved mid-year. Report: - Income during residency period as a resident (all sources). - Income after move as nonresident (only state-sourced).

States provide part-year forms or checkboxes on resident forms (e.g., California's Form 540 with Schedule CA).

Nonresident Returns

File if no residency but state-sourced income exceeds thresholds. Taxed only on: - Wages for work performed in the state. - Business income apportioned there. - Rentals, pensions, or investments tied to the state.

Forms like nonresident versions (e.g., Virginia Form 763).

Step 5: Allocate Income, Deductions, and Credits Correctly

States do not tax the same way as the federal government, so prorate everything.

Income Allocation

• Wages: Split by work days in each state (e.g., 120/365 days in State A).
• Self-employment/gig income: Based on where services performed or business located.
• Investments/capital gains: Often sourced to resident state.
• Retirement/pensions: May follow residency at receipt.

Use work logs, timesheets, or software calculators. Example: Earned $100,000 total; worked 200 days in State A, 165 in State B. State A portion: ($100,000 x 200/365).

Deductions and Exemptions

• Prorate standard/itemized deductions by income percentage in the state.
• Property taxes/mortgage interest: Allocate by property location.
• State taxes paid: Deductible federally, but track for credits.

Credits for Taxes Paid to Another State

Most states offer a credit for taxes paid to another state to avoid double taxation. Claim on your resident state's return: - Calculate tax liability as if all income resident. - Subtract credit for actual tax paid to the other state on overlapping income. - Limited to the lesser of tax paid or your home state's tax on that income.

Forms vary (e.g., New York's IT-112-R). Software handles this, but review calculations.

Step 6: Choose Your Filing Method

• Tax software: Best for multi-state; imports federal data, allocates automatically. Costs $20-$100 per state return.
• Free file: IRS Free File or state programs for low-income.
• VITA/TCE: Free help at IRS.gov for qualifying taxpayers.
• Professional preparer: Enrolled agents or CPAs via IRS.gov directory, especially if complex (e.g., $200-$500+).

E-file where possible; states often require it. Mail paper returns certified if needed.

Multi-State Filing Checklist

1. Confirm residency dates and income sources.
2. File federal return first.
3. Download state forms/instructions.
4. Enter federal data, adjust for state allocation.
5. Calculate resident/nonresident portions.
6. Apply other-state tax credits.
7. Review for errors (SSN, math, addresses).
8. E-file or mail with payment/voucher.
9. Save confirmations and state transcripts later.

Step 7: Handle Deadlines and Payments

Federal deadline: April 15 (or next business day). States follow similar, but check each site.

• Extensions: File federal Form 4868 by April 15 (extends to October 15). States may auto-extend or require separate forms. Payment is due April 15 to avoid penalties.
• Estimated payments: If self-employed with multi-state income, pay quarterly via Form 1040-ES and state equivalents.
• Owe taxes? Pay via IRS Direct Pay, EFTPS, or state portals. Set up installment agreements if needed.

Interest and penalties accrue on unpaid balances (check rates on official sites). Do not ignore balance notices.

Step 8: Check Status and Refunds

After filing:

• Federal: IRS "Where's My Refund?" after 24 hours for e-file.
• State: Use each agency's online tracker (need SSN, filing status, refund amount).

Refunds take 2-6 weeks e-file, longer for paper or reviews. Multi-state filers face extra scrutiny for allocations, so delays possible. Track separately per state.

If no refund expected, monitor account transcripts via IRS.gov for adjustments.

Common Pitfalls and How to Avoid Them

• Wrong allocation: Double-check days worked vs. lived. Use spreadsheets.
• Missing credits: Forget other-state credit? File amended return (state Form X equivalents).
• Remote work confusion: States like NY tax based on work location, not home. Verify.
• Duplicate refunds: Software prevents, but review.
• Local taxes: Cities like NYC or Philly have extras.

Example: Sarah moved from Illinois to Florida mid-year. She filed part-year IL (resident Jan-June) and nonresident FL (if any sourced income). Credited IL tax on her FL return.

Protect Yourself from Tax Scams

Scammers target multi-state filers with fake "residency audit" calls or emails promising credits. Red flags:

• Unsolicited IRS/state contacts demanding immediate payment.
• Requests for gift cards or wire transfers.
• Fake sites mimicking IRS.gov.

Verify via official sites only. Forward suspect emails to phishing@irs.gov. Use two-factor authentication on tax accounts.

Recordkeeping for Peace of Mind

Keep records 3-7 years (longer for losses):

• Filed returns, worksheets, allocation calcs.
• Notices, payments, transcripts.
• Store securely (encrypted drives, not public cloud).

Request free IRS/state transcripts anytime to verify.

When to Get Qualified Tax Help

DIY works for simple moves, but consider a pro if:

• High income or complex allocations.
• Audits, notices, or disputes.
• Self-employment, rentals across states.
• You're unsure of residency.

Find help via IRS.gov (directory of preparers) or Low Income Taxpayer Clinics. Ask about multi-state experience.

Costs vary, but errors cost more. A qualified tax professional can review your situation.

Final Steps and Reminders

Review everything twice before submitting. Use state simulators if available. After filing, set calendar alerts for next year's estimates.

Rules can change yearly, so check IRS.gov/filing and state sites annually. This guide provides general steps, but a tax professional can tailor to your facts. File accurately to minimize issues and maximize legitimate refunds or credits.

About the TDL Expert Panel

TDL Expert Panel · TheDigitalLife Editorial Team

TDL Expert Panel is the editorial team behind TheDigitalLife. The team researches, reviews, and creates practical guides to help everyday readers make better decisions about home repair costs, refunds, AI tools, digital safety, productivity, and useful online resources. Each guide is written to be clear, useful, and easy to understand.

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