Live in Delaware, Work in Connecticut: Which State Taxes Your Paycheck?
Answer
Expect withholding in Connecticut and a return in both. Delaware and Connecticut hold no reciprocal agreement, so the overlap is resolved after the fact: Connecticut taxes the Connecticut-source wages, and your Delaware resident return claims a credit for that tax against the Delaware liability on the same income.
Last verified
Without an agreement between Delaware and Connecticut, the overlap is handled after the fact rather than prevented. That is why the filing order matters: the Connecticut figure is an input to the Delaware return, so completing Delaware first means doing it twice.
A Delaware resident taxed by another state on the same income claims the credit for taxes paid to other states on Schedule I (Form PIT-RES). The credit is capped at the Delaware tax on that income, so it removes the double tax but never refunds the excess when the other state charges more.
What you file
- 1Nonresident return · ConnecticutForm CT-1040NR/PY
File the Connecticut nonresident return FIRST — you need the Connecticut tax figure before you can complete Delaware.
- 2Resident return · DelawareSchedule I (Form PIT-RES)
File a Delaware resident return reporting all income, then claim the credit for tax paid to Connecticut. The credit is capped at what Delaware would have charged on that same income, so if Connecticut taxes it at a higher rate the difference is not refunded.
The two states, side by side
| Delaware | Connecticut | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — graduated |
| Reciprocity partners | None | None |
| Convenience rule | Yes — general rule | Only against convenience-rule states |
| Nonresident return | Form PIT-NON | Form CT-1040NR/PY |
| Credit for other-state tax | Schedule I (Form PIT-RES) | Schedule 2 (Form CT-1040) |
| Nonresident safe harbour | None published | None published |
| Local income tax | Yes | No |
| Revenue department | Delaware Division of Revenue | Connecticut Department of Revenue Services |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Connecticut and working in Delaware gives:Both states — credit offsets the double tax.
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.
- Remote worker: Delaware → ConnecticutConvenience-of-the-employer rule — both states tax you
- 1099 contractor: Delaware → ConnecticutHome state, plus the client state if you work there
- Moved mid-year: Delaware → ConnecticutTwo part-year returns
Other Delaware pairs
Questions people actually ask
I live in Delaware and work in Connecticut. Which state takes the tax out of my paycheck?
Expect withholding in Connecticut and a return in both. Delaware and Connecticut hold no reciprocal agreement, so the overlap is resolved after the fact: Connecticut taxes the Connecticut-source wages, and your Delaware resident return claims a credit for that tax against the Delaware liability on the same income.
Which state should my employer be withholding for?
Connecticut. The wages are sourced to Connecticut, so Connecticut withholding is correct and there is no Delaware withholding to set up.
Will I end up paying tax twice on the same income?
Not twice over, but you will pay the higher of the two rates. Delaware gives residents a credit for tax paid to Connecticut on the same income, claimed on Schedule I (Form PIT-RES). The credit is capped at the Delaware tax on that income, so if Connecticut taxes it more heavily the excess is not refunded by either state.
How current is this?
The Delaware and Connecticut rules on this page were last checked against Delaware Division of Revenue and Connecticut Department of Revenue Services 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.
- Delaware Division of Revenue — individual income taxaccessed 2026-08-07
- Connecticut Department of Revenue Services — individual income taxaccessed 2026-08-07