Moved from Connecticut to Alaska Mid-Year: Which State Tax Returns Do You File?
Answer
Alaska asks for nothing. Your last state return is the Connecticut part-year return covering the months before you moved; after that date Connecticut has no claim on income from outside the state, and Alaska has no personal income tax to impose.
Last verified
Moving to a state with no income tax ends your state filing obligation on the day your residency changes — but not a day earlier. Connecticut taxes everything you received while you still lived there.
What you file
- 1Part-year return · ConnecticutForm CT-1040NR/PY
File a Connecticut part-year return covering the months you lived in Connecticut. Alaska has no wage income tax, so the move ends your state filing obligation.
The two states, side by side
| Connecticut | Alaska | |
|---|---|---|
| Taxes wages | Yes — graduated | No |
| Reciprocity partners | None | None |
| Convenience rule | Only against convenience-rule states | No |
| Nonresident return | Form CT-1040NR/PY | Not applicable |
| Part-year return | Form CT-1040NR/PY | Not applicable |
| Credit for other-state tax | Schedule 2 (Form CT-1040) | No income tax |
| Nonresident safe harbour | None published | Not applicable |
| Local income tax | No | No |
| Revenue department | Connecticut Department of Revenue Services | Alaska Department of Revenue — Tax Division |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Alaska and working in Connecticut gives:One part-year return — the state you moved to.
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.
- W-2 commuter: Connecticut → AlaskaHome state only
- Remote worker: Connecticut → AlaskaHome state only
- 1099 contractor: Connecticut → AlaskaHome state only — estimated payments
Other Connecticut pairs
Questions people actually ask
I moved from Connecticut to Alaska mid-year. Do I have to file in both states?
Alaska asks for nothing. Your last state return is the Connecticut part-year return covering the months before you moved; after that date Connecticut has no claim on income from outside the state, and Alaska has no personal income tax to impose.
How do I split my income between Connecticut and Alaska?
By when you received it, measured against the date your domicile actually changed. Income received while you were a Connecticut resident belongs on the Connecticut return and income received afterwards on the Alaska return. Keep evidence of the move date — a lease, a closing statement, a licence issue date.
How current is this?
The Connecticut and Alaska rules on this page were last checked against Connecticut Department of Revenue Services and Alaska Department of Revenue — Tax Division 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.
- Connecticut Department of Revenue Services — individual income taxaccessed 2026-08-07
- Alaska Department of Revenue — Tax Division — individual income taxaccessed 2026-08-07