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Live in Connecticut, Work in Washington: Which State Taxes Your Paycheck?

Home state onlyConnecticut withholds

Answer

Connecticut taxes the income and Washington cannot. Residency, not the location of the job, drives this answer: Connecticut reaches all of a resident's income, and Washington has no personal income tax to apply to the part earned inside its borders.

Last verified

Crossing into a state with no income tax does not lower your tax bill, because your home state is not taxing you on where you work — it is taxing you on where you live. Connecticut reaches all of a resident's income, and Washington adds nothing on top.

What you file

  1. 1Resident return · Connecticut

    File a Connecticut resident return reporting all of your income.

The two states, side by side

 ConnecticutWashington
Taxes wagesYes — graduatedNo
Reciprocity partnersNoneNone
Convenience ruleOnly against convenience-rule statesNo
Nonresident returnForm CT-1040NR/PYNot applicable
Credit for other-state taxSchedule 2 (Form CT-1040)No income tax
Nonresident safe harbourNone publishedNot applicable
Local income taxNoNo
Revenue departmentConnecticut Department of Revenue ServicesWashington State Department of Revenue
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The other direction

Reversing the commute does not always reverse the answer. Living in Washington and working in Connecticut gives:Work state only.

Washington to Connecticut →

Same two states, different situation

The withholding answer turns on how you are paid and where the work happens, not only on which two states are involved.

Other Connecticut pairs

Questions people actually ask

I live in Connecticut and work in Washington. Which state takes the tax out of my paycheck?

Connecticut taxes the income and Washington cannot. Residency, not the location of the job, drives this answer: Connecticut reaches all of a resident's income, and Washington has no personal income tax to apply to the part earned inside its borders.

Which state should my employer be withholding for?

Connecticut. Your employer should withhold Connecticut tax rather than Washington tax on these wages. If a Washington line is showing on your pay stub, raise it with payroll now rather than at filing time.

How current is this?

The Connecticut and Washington rules on this page were last checked against Connecticut Department of Revenue Services and Washington State Department of Revenue on 2026-08-07. We re-check the full grid every December after state legislative sessions close, and re-check the convenience-of-the-employer states quarterly because that is where the rules move fastest.

Sources

Every fact above comes from the revenue department that publishes the rule. We do not cite secondary summaries, and we do not restate a figure we could not find at source.