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Form IT-203-ATT: Other Tax Credits and Taxes (2026)

Last reviewed: 2025-10-29

Use the New York Tax Form Calculator Form IT-203-ATT — Other Tax Credits and Taxes (Attachment to Form IT-203) as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 New York state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

Form IT-203-ATT is the attachment to IT-203 used by nonresidents and part-year residents to report other tax credits not entered directly on IT-203 and to report other New York State taxes. Credits listed here move to the IT-203 credit lines; other taxes flow to the “net other NYS taxes” line. You must also attach each applicable credit form that supports the amounts shown.

Complete only the parts that apply to you. Use whole dollars where the form specifies and keep carryforward schedules updated for future years.

  1. Who must file: File IT-203-ATT with IT-203 if you (a) claim New York State, New York City, Yonkers, or MCTMT-related credits not entered directly on IT-203, or (b) owe “other NYS taxes” listed for Part 2.
  2. Sections and parts: Part 1 captures other credits. Section A lists NYS nonrefundable, non-carryover credits; Section B lists NYS nonrefundable credits with carryforwards; Section C lists NYC nonrefundable credits. Part 2 reports “net other NYS taxes.”
  3. Attachments: Enter each credit with its official credit name and code, and attach the corresponding credit form. Totals from Part 1 carry to the IT-203 credit line; Part 2 totals carry to the other-taxes line.
  4. Carryforwards: For credits in Section B that permit carryover, record current-year usage and retain a separate schedule of remaining balances for future filings.
  5. City/Yonkers: NYC credits appear in Section C for full-year or part-year NYC residency as applicable; Yonkers-specific items appear on IT-203 but may require supporting attachments depending on the credit or tax.
Other Tax Credits and Taxes
Complete all parts that apply to you; see instructions (Form IT-203-I). Submit this form with your Form IT-203.
AHave you (or an entity of which you are an owner) been convicted of Bribery Involving Public Servants and Related Offenses, Corrupting the Government, or Defrauding the Government (NYS Penal Law Article 200, 496, or section 195.20)? (see instructions).
Part 1 – Other tax credits (submit all applicable forms)
Section A – New York State nonrefundable, non-carryover credits usedWhole dollars only
11
22
3Other nonrefundable, non-carryover credits
CodeAmountCodeAmount
3a3b
Total other nonrefundable, non-carryover credits (add lines 3a and 3b)3
Section B – New York State nonrefundable, carryover credits used
44
55
66
7Other nonrefundable, carryover credits
CodeAmountCodeAmount
7a7h
7b7i
7c7j
7d7k
7e7l
7f7m
7g7n
Total other nonrefundable, carryover credits (add lines 7a through 7n)7
88
Section C – New York State, New York City, Yonkers, and MCTMT refundable credits
99
9a9a
10 10
11 11
12Other NY State refundable credits
CodeAmountCodeAmount
12a12g
12b12h
12c12i
12d12j
12e12k
12f12l
Total other refundable credits (add lines 12a through 12l)12
1313
1414
1515
1616
16a16a
1717
Part 2 – Other New York State taxes (submit all applicable forms)
1818
19Other New York State taxes
CodeAmountCodeAmount
19a19g
19b19h
19c19i
19d19j
19e19k
19f19l
Total other New York State taxes (add lines 19a through 19l)19
2020
2121
2222
2323
2424
2525
2626
2727
2828
2929
3030
3131
3232
3333

How Part 1 (Other Credits) Works

Section A — Nonrefundable, non-carryover credits: List each credit and amount. These reduce NYS tax but cannot create a refund. Sum the section and carry the total to the IT-203 credit line indicated by the form. Ensure the amounts agree with the attached credit forms.

Section B — Nonrefundable credits with carryforward: Enter the portion used this year and track any remainder for the future. Keep a rolling schedule showing: credit type, original year, used-to-date, and balance. You will need this record when preparing next year’s return.

Section C — NYC nonrefundable credits: If you qualify for NYC-level credits, list them here. Confirm residency period and the credit’s NYC-specific rules before claiming. Totals flow to the IT-203 line specified by the form.

How Part 2 (Net Other NYS Taxes) Works

Use Part 2 to report additional New York State taxes that are not captured in the main computation on IT-203. Enter each applicable tax item on its line, total the section, and carry the net amount to the “net other NYS taxes” line on IT-203. These taxes increase your total NYS liability and may affect estimated tax planning for the following year.

Cross-Form Coordination

Amounts on IT-203-ATT must reconcile with IT-203 and all attached credit forms (for example, forms included in the IT-203 instructions). If your business allocation affects New York source income, check that credits with percentage-based limits are computed using your New York amounts after allocation via IT-203-A. If your credits depend on modifications, ensure IT-225 entries are finalized before you total Part 1.

Worked Example

Example: A part-year resident claims a $700 NYS nonrefundable credit (Section A) and uses $300 of a solar credit with $1,200 carryforward remaining (Section B). They also owe $150 of other NYS tax in Part 2. Part 1 totals to $1,000 and reduces the IT-203 tax; Part 2 adds $150 to net other NYS taxes. The taxpayer updates their carryforward schedule to reflect the new $900 remaining balance.

Refund interaction: If credits reduce your tax below withholdings and estimated payments, you may be due a refund. You can direct any overpayment via IT-195 to NYS 529 accounts or next year’s estimated tax; IT-203-ATT itself does not change payment or refund mechanics beyond its totals.

Last reviewed: 2025-10-29: If you believe this form requires an update, please contact us.

Planning & Audit Readiness

Label and link every credit: Maintain a worksheet listing each credit code, form, amount, and the exact IT-203-ATT line. Ensure totals equal the IT-203 credit line and that each supporting form is attached.

Carryforward hygiene: Keep a year-over-year log for Section B credits to avoid lost or expired carryovers. When residency changes or New York source income shifts, re-test any percentage-limited credits for correct New York-only amounts.

City/Yonkers coordination: Confirm residency months and sourcing so NYC credits and Yonkers items reconcile to your main return. Consistent documentation shortens processing time and reduces correspondence.

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Frequently Asked Questions

Does IT-203-ATT replace IT-112-R or IT-112-C?

No. Those forms calculate credits for taxes paid to other jurisdictions, and their totals are then entered onto IT-203-ATT where indicated.

How much income can be excluded on IT-221?

You may exclude up to $5,000 ($10,000 for joint filers) of qualifying disability income, reduced by any NY pension or annuity exclusion previously claimed.

Can part-owners of a property claim IT-119?

Yes — if the notice issued reflects the property key and entity ownership, each owner must enter their share of the underpayment on IT-119 and may attach separate forms as required.

Can I use IT-203-B to claim the NY College Tuition Deduction?

Yes. Part 2 of IT-203-B calculates the allowable college tuition itemized deduction or credit, depending on your AGI and tuition amounts paid.

Are HSA contributions deductible for New York tax?

No—unlike the federal system, New York does not allow an HSA deduction.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.