No. Despite heavy commuter traffic between Fairfield County (CT) and Westchester County (NY), Connecticut and New York have never signed a reciprocity agreement. Both states collect substantial revenue from cross-border commuters, and neither has been willing to forgo that income. This means NY residents working in CT must file in both states every year.
The CT-NY situation mirrors the NY-NJ crossing in structure, but the roles reverse: here, NY is the home state granting the credit, and CT is the work state collecting nonresident tax.
Which returns do I file as a NY resident working in CT?
| Filing obligation | State | Form |
|---|---|---|
| Nonresident income tax return | Connecticut | CT-1040NR/PY |
| Resident income tax return | New York | IT-201 |
| Credit for CT taxes paid | Claimed on IT-201 | IT-112-R |
File the Connecticut nonresident return first. You need the final CT tax figure to calculate the credit on your New York return.
How does the NY resident credit prevent double taxation?
New York taxes residents on all income. Connecticut taxes nonresidents on CT-source income. The NY resident credit works like this:
- Calculate your Connecticut nonresident tax on CT-source wages.
- File IT-201 in New York, reporting all income.
- Claim a credit on IT-112-R for tax paid to CT on income also taxed by NY.
- The credit equals the lesser of CT tax paid or NY tax on that same income.
(Simplified illustration. Verify at CT DRS and NY DTF.)
How should my employer handle withholding?
Your CT employer withholds Connecticut income tax. Whether they also withhold for New York depends on the employer — many do not. You may need to make NY estimated tax payments or file IT-2104 to request additional withholding from another NY income source.
Does Connecticut have a convenience-of-the-employer rule?
No. Connecticut generally taxes nonresidents only on days physically worked in CT. If you telecommute from New York some days, those are NY-source days, not CT-source. This is the opposite of New York's convenience rule, which can tax remote days as if worked in NY. For NY residents working in CT with a hybrid schedule, tracking workdays by location can reduce your CT liability.
What if I moved between CT and NY mid-year?
File as a part-year resident in each state. CT-1040NR/PY handles both nonresident and part-year scenarios. NY Form IT-203 covers part-year/nonresident filing. Each state taxes based on residency period and source. The credit mechanism still applies to prevent double taxation.
For remote work across state lines, see our remote work two-state tax guide.
What if my CT employer withheld only Connecticut tax?
If your employer withholds only Connecticut income tax and not New York, you may owe a balance to New York at filing time. The NY resident credit offsets some of your NY liability, but if NY's tax on your income exceeds the CT tax you paid, you owe the difference to NY. To avoid a large year-end bill:
- Request additional NY withholding through your employer using Form IT-2104, if your employer can accommodate it.
- Make quarterly estimated payments to New York if your employer cannot split withholding.
- File the CT return (CT-1040NR/PY) first at year-end to determine your CT tax, then compute your NY credit on IT-112-R.
What if I work remotely from New York for a CT employer?
Connecticut generally does not apply a convenience-of-the-employer rule. Days you work from your New York home are typically not CT-source income. Only days you physically work in Connecticut generate CT-source wages. This means hybrid workers who split time between CT and NY can reduce their CT nonresident tax liability by tracking workdays — the fewer CT days, the less CT tax you owe.
However, be careful with New York's rules: NY taxes its residents on all income regardless. So your NY tax stays the same whether you work in CT or NY. The CT portion simply determines how much credit you can claim. More remote days from NY = less CT tax = less credit = same total (approximately), but the filing complexity is reduced.
What if I moved between Connecticut and New York mid-year?
File as a part-year resident in each state. CT-1040NR/PY handles both nonresident and part-year scenarios. Use NY Form IT-203 for the part-year/nonresident calculation. Each state taxes income based on your residency period plus source rules. Keep your exact move date documented — both states will ask for it.
For general multi-state situations, see our remote work two-state tax guide. Compare take-home pay using the CT salary calculator and the NY salary calculator.
Do I need to worry about local taxes in the CT-NY corridor?
Connecticut does not have a local or municipal income tax — your CT obligation is solely the state's graduated rate. New York State also does not levy a separate local income tax outside of New York City and Yonkers. If you live in NYC, the NYC resident income tax applies to all your income as a city resident, in addition to the NY state tax. If you live in Yonkers, a Yonkers resident surcharge applies. For suburban commuters living in Westchester, Rockland or other NY counties outside NYC, there is no local income tax layer.
This makes the CT-NY crossing cleaner than many other border pairings — the only taxes are CT state (nonresident), NY state (resident) and potentially NYC or Yonkers local (if applicable to your home address).
Questions
Frequently asked questions
Do Connecticut and New York have a tax reciprocity agreement?
No. Despite heavy commuter traffic between Fairfield County (CT) and Westchester County (NY), Connecticut and New York have never signed a reciprocity agreement. Both states collect substantial revenue from cross-border commuters, and neither has been willing to forgo that income. This means NY residents working in CT must file in both states every year.
Which returns do I file as a NY resident working in CT?
File the Connecticut nonresident return first. You need the final CT tax figure to calculate the credit on your New York return.
How does the NY resident credit prevent double taxation?
New York taxes residents on all income. Connecticut taxes nonresidents on CT-source income. The NY resident credit works like this:
How should my employer handle withholding?
Your CT employer withholds Connecticut income tax. Whether they also withhold for New York depends on the employer — many do not. You may need to make NY estimated tax payments or file IT-2104 to request additional withholding from another NY income source.
Does Connecticut have a convenience-of-the-employer rule?
No. Connecticut generally taxes nonresidents only on days physically worked in CT. If you telecommute from New York some days, those are NY-source days, not CT-source. This is the opposite of New York's convenience rule, which can tax remote days as if worked in NY. For NY residents working in CT with a hybrid schedule, tracking workdays by location can reduce your CT liability.
- 🔄 Last updated July 31, 2026 · Tax year 2026
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