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Connecticut 183-Day Rule Checker
Connecticut runs a statutory day-count test at 183 days. Enter your days or build date ranges below for a verdict cited to Connecticut's actual rule.
Connecticut's actual test
Conn. Gen. Stat. §12-701(a)(1): a person not domiciled in Connecticut is still taxed as a resident if they maintain a permanent place of abode in Connecticut and spend more than 183 days of the taxable year in the state. Connecticut's own regulations note the abode must be genuinely permanent; someone using a Connecticut apartment only during a limited work assignment, without it being a permanent place of abode, is not a statutory resident even if physically present more than 183 days.
Any part of a day
Generally yes, presence in Connecticut for any part of a day counts toward the 183-day threshold, consistent with the neighboring statutory-residency states.
Presumptions
None published beyond the two-prong statutory test. Connecticut's regulations do carve out that a genuinely temporary, work-related apartment is not a 'permanent' place of abode even if occupied for a long stretch, which is a narrower exception than New York's.
Methodology and sources
The threshold, presumption, and rule text shown here come directly from Connecticut's researched dossier, reviewed against 18 primary sources including Connecticut Department of Revenue Services. This is general information, not tax or legal advice.
183-Day Rule Checker
Check your day count against Connecticut's actual rule.
Clear
183 days below the 183-day threshold
Days counted
0
0 days is comfortably under the 183-day statutory threshold. The day-count test alone would not make you a statutory resident here at this pace, though domicile and other facts-and-circumstances tests can still apply independently.
Connecticut's actual test
Conn. Gen. Stat. §12-701(a)(1): a person not domiciled in Connecticut is still taxed as a resident if they maintain a permanent place of abode in Connecticut and spend more than 183 days of the taxable year in the state. Connecticut's own regulations note the abode must be genuinely permanent; someone using a Connecticut apartment only during a limited work assignment, without it being a permanent place of abode, is not a statutory resident even if physically present more than 183 days.
Any part of a day
Generally yes, presence in Connecticut for any part of a day counts toward the 183-day threshold, consistent with the neighboring statutory-residency states.
Presumptions
None published beyond the two-prong statutory test. Connecticut's regulations do carve out that a genuinely temporary, work-related apartment is not a 'permanent' place of abode even if occupied for a long stretch, which is a narrower exception than New York's.
General information based on published dossier research, not tax or legal advice. Consult a qualified advisor before relying on a day count for a filing position.
Connecticut Day-Count FAQ
I split time between Connecticut, Florida, and Arizona and never fully closed any of the homes. How does Connecticut decide which one is my domicile?+
DRS regulations direct examiners to weigh your real estate, business, social, and civic connections to Connecticut against those in your other states, without a strict day-count shortcut. Daniels v. Commissioner of Revenue Services involved exactly this fact pattern, and a Superior Court initially found the Connecticut and Florida ties roughly equal, which meant the outcome turned on which side had the burden of proof and how high that bar was set, not on a single deciding factor.
Does Connecticut have a day-count safe harbor like New York's 548-day rule for people working abroad?+
No published Connecticut safe harbor of that kind exists. Connecticut's statutory residency test is the same 183-day-plus-permanent-abode formula used elsewhere, but the state has not enacted a separate carve-out for domiciliaries working outside the country the way New York has with its 548-day rule. Anyone relying on extended foreign work to avoid Connecticut residency should plan around the general domicile and 183-day tests rather than assume an equivalent safe harbor exists.
I'm a Connecticut resident working from home for a New York employer. Does New York's convenience rule really reach me?+
Yes, and Connecticut residents are the test case for this exact question. Cardozo Law School professor Edward Zelinsky, a Connecticut resident who teleworks for a New York City employer, has litigated New York's convenience of the employer rule for years; the New York Tax Appeals Tribunal upheld the rule against him again in May 2025. Unless your remote work meets New York's narrow necessity exception, New York can tax your full salary as if you worked in its office every day, even though you never leave Connecticut.
Does Connecticut have its own convenience of the employer rule for remote workers?+
Yes, since 2019. Connecticut taxes a nonresident who works remotely for a Connecticut-based employer as if they worked in Connecticut, but only if that nonresident's home state also imposes its own convenience rule on Connecticut residents, which today means New York. If you work remotely for a Connecticut employer from a state without a convenience rule, Connecticut generally does not apply this rule to you.
If I keep a small apartment in Connecticut just for occasional work trips, does that alone make me a statutory resident?+
Not by itself. Connecticut's own regulations distinguish a genuinely temporary, work-related apartment from a permanent place of abode, and an apartment used only for limited work purposes, even for a stretch exceeding 183 days of physical presence, has been treated as falling outside the statutory residency test because it isn't permanent. The distinction depends heavily on the facts, including lease length, how the space is furnished and used, and whether it functions as anything close to a real home.
Does Connecticut tax visiting athletes and performers at Mohegan Sun and Foxwoods?+
Yes. Connecticut taxes nonresident athletes and entertainers on income earned from Connecticut performances or events using duty-day style apportionment, the same general approach other states use for the jock tax. This applies to touring performers and visiting athletes at Connecticut's major casino venues, as well as to the home roster of the WNBA's Connecticut Sun, which is based at Mohegan Sun.
Read the full Connecticut residency guide
Day count is one part of the picture. The full guide covers domicile, exit audit risk, the establishment checklist, tax profile, and special situations for Connecticut.
Open the Connecticut residency guideCheck another jurisdiction
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