Moved to NY Mid-Year? Your 2026 Part-Year Tax Filing Guide (IT-203)
New York doesn’t just tax your NY income — it computes tax on your total income, then multiplies by your NY income percentage. Here’s the IT-203 Line 46 math, a $120K July-move worked example, and the residency rules that decide everything.
NY State $3,020NYC $1,891
Base tax × income percentage
New York’s part-year method has three steps (Form IT-203, lines 44–46):
| Step | IT-203 line | What happens |
|---|---|---|
| 1. Base tax | Line 44 | Compute NY tax on your entire federal taxable income as if you were a full-year resident |
| 2. Income percentage | Line 45 | NY-source NYAGI ÷ total NYAGI, to 4 decimals (e.g. 0.5000) |
| 3. Allocate | Line 46 | Line 44 × line 45 = your NY State tax |
Key subtlety: the standard deduction ($8,000 single) goes in in full, not prorated — and the percentage can exceed 100% (the instructions give a 1.6667 example when NY income exceeds federal AGI).
$120K, July 1 move to NYC → $4,911
Single filer. Moved from Ohio to NYC on July 1, 2026: $60,000 earned Jan–Jun in Ohio (never worked in NY), $60,000 earned Jul–Dec at the NYC job. 2026 brackets (3.9%–10.9% after the 0.1-pt cut).
| Step | IT-203 concept | Amount |
|---|---|---|
| Federal AGI (line 31) | Total wages | $120,000 |
| NY amount (line 31) | Resident-period income counts in full | $60,000 |
| Line 45 — income % | 60,000 ÷ 120,000 | 0.5000 |
| Line 37 — NY taxable | $120,000 − $8,000 SD | $112,000 |
| Line 38 — base tax | Rate schedule on $112,000 | $6,040 |
| Line 46 — allocated state tax | $6,040 × 0.5000 | $3,020 |
| Line 51 — part-year NYC tax | Via IT-360.1 on city-period income | ~$1,891 |
| Total NY state + city | $4,911 |
A full-year NYC resident on the same $120,000 would owe about $10,256 ($6,040 state + ~$4,216 city). The July move cuts the combined bill roughly in half — entirely through the income-percentage mechanism. Fine print: at $120K of NYAGI you’re above the $107,650 benefit-recapture trigger, so the official line-44 base tax runs through the recapture worksheet (~$6,181, not the $6,040 schedule figure) — the line-46 percentage math is identical, and the all-in total lands within ~$70 of the $4,911 shown.
IT-201 vs IT-203
| Situation | Form | Notes |
|---|---|---|
| Full-year NY resident | IT-201 | Worldwide income; city tax on the same return |
| Moved into NY mid-year | IT-203 | Item G = move-in date (mmddyyyy) |
| Moved out of NY mid-year | IT-203 | Watch special accruals (IT-260) on bonuses & installments |
| Never lived in NY, NY-source income only | IT-203 | Nonresident allocation instead of part-year worksheet |
| NYC part-year (either direction) | IT-203 + IT-360.1 | City tax on city-resident-period income |
Married trap: if one spouse is a full-year resident and the other isn’t, you generally must file separate NY returns (IT-201 + IT-203) — electing joint IT-201 taxes both spouses as full-year residents.
IT-360.1 — not “IT-360”
The city tax for a part-year NYC resident is computed on Form IT-360.1 (Change of City Resident Status) and flows to IT-203 line 51. A competitor page calls it “IT-360” — that form doesn’t exist for this purpose; the instructions name IT-360.1 explicitly (line 51).
City tax is figured on income attributable to your city resident period, not via the state income percentage. Yonkers part-year filers use IT-360.1 Part 5 — the Yonkers surcharge is 16.75% of the attributable net state tax. And remember: NYC tax applies to city residents only — commuters from NJ/CT owe $0 city tax (commuter tax repealed 1999).
183 days, domicile, and the “teddy bear test”
Two independent paths make you a NY resident:
- Domicile — your permanent home. NY auditors apply the “teddy bear test”: where do you keep the things nearest your heart? Doctors, vets, clubs, family photos, and where you return after trips matter more than what you claim.
- Statutory residency — a permanent place of abode in NY plus 184+ days in the state. Day-count diaries win or lose these audits.
The Appellate Division upheld the convenience-of-the-employer rule again — even a government-mandated office closure doesn’t make remote work an “employer necessity.” If your NY employer lets you work from Florida by choice, NY still taxes those wages. Remote worker guide →
What’s new for part-year filers
- Bracket cut: the five lowest NY brackets fell 0.1 point for 2026 (3.9%/4.4%/5.15%/5.4%/5.9% single) — another 0.1-pt cut lands in 2027.
- MCTMT threshold raised to $150,000 per zone (from $50,000), effective Jan 1, 2026 — matters if you’re self-employed.
- High-income surcharge extended through 2032 (9.65%/10.3%/10.9%).
- Special accruals (IT-260): bonuses and installment income accruing before you leave NY are taxed to NY even if received after — or post collateral via IT-260.1.
Three moves that surprise people
(a) Moved to NYC in June for a job. The most common shock: your pre-move Ohio wages count — all income earned during the resident period is NY income, wherever it was earned. Planning tip: shift bonuses, option exercises, and property sales into the nonresident period where they aren’t NY-source.
(b) Left NY in September but kept the remote NY job. Under the convenience rule, those post-move remote days are still NY workdays — Column C of your worksheet will be ~100% of those wages. Clean exits only: reassignment to a non-NY office, or a bona fide employer office meeting TSB-M-06(5)I.
(c) Sold the NY home after moving. Two tax events: the gain is NY-source regardless of residency at sale (NY real property), and any income that accrued before the move (fixed bonuses, installment gains) is pulled back via Form IT-260 — or post collateral on IT-260.1 to defer.
Estimated tax, withholding resets, and double-tax relief
- IT-2105 estimated payments: NY’s trigger is just $300 owed beyond withholding (vs $1,000 federal) — due Apr 15 / Jun 15 / Sep 15 / Jan 15. Safe harbor: 100% of prior-year NY tax (110% if NYAGI > $150K).
- Reset IT-2104 on arrival — your new employer needs a fresh certificate with the NYC address, or city tax is under-withheld all year. Leaving? File IT-2104.1 (nonresidence/allocation) to stop NY withholding.
- Double-tax relief (IT-112-R): credit for taxes paid to other states, but only for the resident period and only the lesser of tax actually paid vs NY tax attributable — not dollar-for-dollar.
Part-Year Resident Tax FAQs
I moved to NYC in July. Do I pay full-year NY taxes?
No — you file Form IT-203 as a part-year resident. NY computes tax on your total income, then multiplies by your NY income percentage. On $120K with a July move, that’s about $4,911 vs $10,256 full-year.
How is the NY income percentage calculated?
NY-source NYAGI (IT-203 line 31, NY State column) divided by total NYAGI (Federal column), carried to four decimal places — e.g., 0.5000. It can exceed 1.0000.
Which form do I use for part-year NYC tax?
Form IT-360.1 (Change of City Resident Status), attached to IT-203; the result flows to IT-203 line 51. Don’t confuse it with the nonexistent “IT-360.”
Do I get the full standard deduction as a part-year filer?
Yes — the $8,000 NY standard deduction (single) goes on IT-203 line 33 in full, not prorated for your months of residency.
What is the 183-day rule?
Maintain a permanent place of abode in NY and spend 184+ days in the state, and you’re a statutory resident taxed on worldwide income — regardless of domicile.
I moved out of NY. Is my year-end bonus still taxed by NY?
Often yes — under the special accrual rules (Form IT-260), fixed/determinable income accruing before your move is taxed to NY even if paid after you leave.
My spouse stayed behind. Can we file jointly in NY?
Usually you must file separate NY returns (resident spouse on IT-201, other on IT-203). Electing joint IT-201 taxes both spouses as full-year residents — expensive if one has large out-of-state income.
Do NJ commuters owe NYC tax?
No — NYC tax is residency-based. NJ/CT commuters owe NY State tax on NY-source wages but $0 city tax.
What changed for 2026 part-year filers?
The five lowest NY brackets were cut 0.1 point, the MCTMT threshold rose to $150,000, and the high-income surcharge was extended through 2032.
Does remote work for a NY company count as NY-source income?
Generally yes under the convenience-of-the-employer rule — reaffirmed in Zelinsky II (July 2026). Only employer necessity (not your preference) sources the income elsewhere.
Does NY’s benefit recapture apply to part-year filers?
Yes — if your NYAGI tops $107,650, the line-44 base tax uses the recapture worksheet before the income percentage is applied. On the $120K example above it adds roughly $70 to the final state bill (~$140 on the base tax, halved by the 0.5000 income percentage).
Moved this year? Check your own numbers.
Run any salary through the 2026 NY engine and see full-year vs part-year-style breakdowns — to the cent.
Calculate My Pay →More Guides & Breakdowns
Transparent calculations. Official sources. 2026 brackets per IRS Rev. Proc. 2025-32, NY Chapter 59 (Laws of 2025), and NYC Admin Code §11-1701; Methodology → Reviewed October 18, 2026 by Daniel Mitchell, U.S. Tax Consultant. Estimates only, not tax advice.