Moved to a New State? Avoid These Tax Mistakes

Mistake #1: Assuming You Only File in Your New State

If you moved during the tax year, you may need to file a part-year resident return in both states.

For example, if you lived in one state from January through June and moved to another state in July, your old state may tax the income you earned while living there. Your new state may tax the income you earned after becoming a resident there.

This does not always mean you will pay tax twice, but it does mean you need to report things correctly.

Mistake #2: Dividing Income by Months Without Checking the Rules

A common mistake is assuming you can simply divide your income based on how many months you lived in each state.

That may not be accurate.

States have different rules for allocating income. Wages, self-employment income, investment income, retirement income, rental income, and business income may all be treated differently.

If your income changed during the year because of bonuses, commissions, overtime, business income, or a job change, a simple month-by-month split could be wrong.

Mistake #3: Ignoring Your Move Date

Your move date matters.

It can help determine when residency ended in your old state and began in your new state. However, states may also look at more than just the day you physically moved.

They may consider things like:

• Your primary home
  
• Your driver’s license
  
• Vehicle registration
  
• Voter registration
  
• Where your family lives
  
• Where you work
  
• Where you keep personal belongings
  
• Your intent to make the new state your permanent home

Keep documents that support your move date, such as lease agreements, closing documents, utility records, employment records, and moving records.

Mistake #4: Forgetting About Remote Work

Remote work can make state taxes more complicated.

If you moved to a new state but kept the same job, your employer’s location is not the only thing that matters. Some states may tax income based on where the work was performed. Others may have different sourcing rules.

Your W-2 may show wages and withholding for more than one state. If it does not, you may need pay stubs or payroll records to figure out how much income belongs to each state.

Do not assume remote work automatically makes your taxes simple.

Mistake #5: Thinking Moving to a No-Tax State Erases Old Tax Obligations

Moving to a state with no individual income tax may help your future tax situation, but it does not erase obligations from the state you left.

For example, if you lived in a state with income tax for part of the year, that state may still require a return for the income you earned while you were a resident.

You may also owe tax on income sourced to that state after you move, such as rental income, business income, or certain other state-connected income.

Mistake #6: Missing Credits for Taxes Paid to Another State

Filing in two states does not always mean you pay tax twice on the same income.

Some states offer a credit for taxes paid to another state. This credit can help reduce double taxation when the same income is taxed by more than one state.

However, these rules vary by state. You need to follow each state’s instructions carefully to claim the credit correctly.

Mistake #7: Not Checking State Withholding

If you moved during the year, check your pay stubs and W-2 carefully.

Sometimes an employer continues withholding taxes for the old state after you moved. Other times, withholding does not switch quickly enough to the new state.

Incorrect withholding does not always determine where income is taxable. It may simply mean you get a refund from one state and owe money to another.

Mistake #8: Forgetting About Nonresident Income

Even after you move, your old state may still tax certain income connected to that state.

Examples may include:

• Rental income from property in your old state
  
• Business income sourced to your old state
  
• Income from work physically performed in that state
  
• Certain partnership or investment income
  
• State-specific income sources

If you moved away but still have financial ties to the old state, do not assume your filing obligation ended completely.

What Records Should You Keep?

Good records can make multi-state tax filing much easier.

Keep copies of:

• W-2s
  
• 1099s
  
• Pay stubs
  
• State withholding records
  
• Lease agreements
  
• Home sale or purchase documents
  
• Utility bills
  
• Employment records
  
• Business records
  
• Prior-year tax returns
  
• Records showing your move date

These records can help support your residency status, income allocation, and any credits claimed on your returns.

Final Thoughts

Moving to a new state can affect your taxes in more ways than you may realize.

You may need to file in two states, allocate income correctly, review withholding, and check whether credits apply. The biggest mistake is assuming your new address automatically controls everything.

If you moved this year, received state tax notices, owe taxes, or are unsure how to file after relocating, Arch Tax can help you understand your options and avoid costly mistakes.

Contact Arch Tax today for a free, confidential consultation.