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How to Establish Residency in a New State

Residency isn't one form. States look at many signs of where you really live. If you're leaving a state with income tax for one without, keeping those signs clear can be especially important.

  • What to change, in order
  • Records to keep
  • When to ask a tax professional

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Your route

Moves that cross a state line only. No obligation.

The usual steps

  1. Get a lease or buy a home. Keep your signed lease or closing papers.
  2. Get a driver's license or state ID. Deadlines differ. Colorado says 30 days, and Washington law also says 30 days.
  3. Register and insure your vehicle. Colorado gives 90 days for title and registration.
  4. Register to vote. Cancel your old registration, if your new state doesn't handle it.
  5. Update your address with your bank, employer, doctors, insurers, the IRS and Social Security.
  6. Move your financial and personal ties, such as doctors and memberships.
  7. File your homestead exemption, if you own your home and your state offers one.

Why domicile matters for taxes

Domicile is your true, permanent home. You can own property in two states, but you generally have only one domicile. If you leave a high-tax state, it may question whether you really left, especially if you keep a home there.

For Illinois, part-year rules generally apply in the year you leave. Tax rules vary by state and situation, so a tax professional is the right person to ask. This page isn't legal or tax advice.

Records worth keeping

  • Lease, closing documents and utility bills.
  • Your bill of lading and moving receipts.
  • License, registration and voter records.
  • A calendar showing where you spent your time, especially if you split your year.

Snowbirds and split-year households

If you spend part of the year in Chicago and part of it elsewhere, such as Florida or Arizona, day counts and your ties to each place can matter. Keep a calendar and speak with a tax professional before filing.

Where to find state rules

See the destination guides for details, including Florida and Texas.

Questions

How long does it take to become a resident of another state?

There's no single answer. It depends on the purpose, such as tax, tuition or voting. Each has its own rules.

Can I be a resident of two states?

You can have homes in two states, but generally only one domicile. Tax treatment can be complicated, so ask a professional.

What's the fastest proof of residency?

A lease or deed, a utility bill and a new driver's license are the usual starting points.

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