To calculate your New York taxable income on Line 37 of Form IT-201, start with your federal adjusted gross income on Line 19, apply New York’s required additions and allowable subtractions to reach New York adjusted gross income on Line 33, subtract your standard or itemized deduction on Line 34, and then subtract $1,000 for each dependent on Line 36. What remains is the figure that goes on Line 37 and drives your state tax bill.1Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return Each step feeds the next, so an error anywhere along the way carries all the way through.
Step 1: Copy Federal AGI to Line 19
Your federal adjusted gross income sits on Line 11 of Form 1040. That number reflects your total income after federal above-the-line deductions like retirement contributions, student loan interest, and the deductible half of self-employment tax.2Internal Revenue Service. Form 1040 You copy it, unchanged, onto Line 19 of Form IT-201. Everything else on the state return works off that figure.3Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return
Step 2: Add Back What New York Taxes But the IRS Doesn’t
New York requires several add-backs on Lines 20 through 23, with detail carried on Form IT-201-ATT, Schedule A.3Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return These are amounts you deducted or excluded federally that New York still considers taxable.
State and Local Income Taxes You Deducted Federally
If you itemized on your federal return and deducted state and local income taxes, that amount must come back into your New York income. Tax Law Section 612(b)(3) reaches income taxes imposed by any taxing jurisdiction that were deducted in computing federal AGI or federal itemized deductions.4New York State Senate. New York Tax Law 612 – New York Adjusted Gross Income of a Resident Individual The add-back covers the income-tax slice of your SALT deduction only. Property taxes stay with your New York itemized deductions.
Interest on Out-of-State Municipal Bonds
Interest from bonds issued by other states or their local governments is exempt federally but fully taxable in New York. The full amount goes back in.3Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return New York State and New York local bond interest stays exempt at both levels.
Federal Bonus Depreciation
If you took bonus depreciation under IRC Section 168(k) on qualifying property placed in service on or after June 1, 2003, you add back the entire federal depreciation deduction on the state return.4New York State Senate. New York Tax Law 612 – New York Adjusted Gross Income of a Resident Individual A separate New York depreciation subtraction, described below, takes its place.
Non-Qualified 529 Withdrawals
If you previously deducted contributions to a New York 529 plan and later pull money out for something other than qualified education expenses, New York recaptures the earlier benefit. Non-qualified withdrawals apply first against amounts that were never deducted, so the add-back only reaches dollars that actually got a state tax break.
Step 3: Subtract What New York Doesn’t Tax
Subtractions run on Lines 25 through 32, with detail on Form IT-201-ATT, Schedule B.3Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return
U.S. Government Bond Interest
Interest on U.S. Treasury bonds, bills, and notes is taxable federally but exempt from state and local tax under federal law. Subtract the full amount. The same treatment applies to savings bonds and certain agency securities.
Government Pensions vs. Private Retirement Income
New York offers two separate pension subtractions, and mixing them up is one of the most common filing errors.
Pensions from New York State government, New York local governments, and the federal government (including military retirement) come out in full, regardless of your age and with no dollar cap.5Department of Taxation and Finance. Information for Retired Persons
Private employer pensions, 401(k) distributions, IRA withdrawals, and similar qualified retirement income qualify for a separate exclusion of up to $20,000 per person if you were 59½ or older for the entire year. Turn 59½ during the year and the exclusion covers only what you received on or after that birthday, still capped at $20,000. Each spouse qualifies independently, so a married couple can exclude up to $40,000.5Department of Taxation and Finance. Information for Retired Persons
Social Security Benefits
Any Social Security benefits that ended up in your federal AGI come back out on the New York return. The state does not tax Social Security.5Department of Taxation and Finance. Information for Retired Persons
New York 529 Contributions
Contributions to New York’s official 529 plan are deductible up to $5,000 for single filers and $10,000 for married couples filing jointly.6NY Saves. Why Choose NY 529 The deduction applies only to the New York plan administered by the state comptroller’s office, not to 529 plans sponsored by other states.7Office of the New York State Comptroller. Savings Programs – NY 529 and NY ABLE
New York Depreciation Subtraction
Where you added back federal bonus depreciation, you claim a replacement deduction calculated as if the property had been acquired on September 10, 2001, under the rules in effect then.4New York State Senate. New York Tax Law 612 – New York Adjusted Gross Income of a Resident Individual Over the asset’s life the two adjustments roughly offset; the practical impact is timing.
Step 4: New York AGI on Line 33
Add your total additions to Line 19, subtract your total subtractions, and the result is your New York adjusted gross income on Line 33.8Tax.NY.Gov. Form IT-201 Resident Income Tax Return Tax Year 2025 This is not taxable income yet. Deductions and exemptions come next.
Step 5: Deduction on Line 34
You reduce NY AGI by either the New York standard deduction or the New York itemized deduction, whichever is larger. The chosen figure goes on Line 34.1Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return
Standard Deduction Amounts
For the 2025 tax year, the standard deduction is:
- Single: $8,000 ($3,100 if someone else can claim you as a dependent)
- Married filing jointly: $16,050
- Married filing separately: $8,000
- Head of household: $11,200
- Qualifying surviving spouse: $16,050
These figures are updated annually, so verify the current year’s amounts before filing.9Department of Taxation and Finance. 2025 Standard Deductions
Itemized Deductions and Their Phase-Outs
To itemize, you use Form IT-196. You start with your federal itemized deductions, then remove state and local income taxes (or general sales taxes) that were deducted federally and any foreign income taxes claimed on federal Schedule A.10Department of Taxation and Finance. 2025 Instructions for Form IT-196 Mortgage interest, charitable contributions, and medical expenses generally carry over, subject to New York’s own limits.
Higher incomes trigger reductions. Once NY AGI exceeds $100,000, the total itemized deduction begins to phase down through a series of calculations. In the $525,000 to $1,000,000 range, the reduction is a flat 50%. Separate overall caps kick in once federal AGI passes thresholds that for 2025 include $340,700 for single filers and $408,850 for married filing jointly.10Department of Taxation and Finance. 2025 Instructions for Form IT-196
If you’re married filing separately, both spouses must use the same method. One itemizes, the other has to itemize too.1Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return
Step 6: Dependent Exemption on Line 36
After the deduction, subtract $1,000 for each dependent you claimed on your return. That total goes on Line 36.1Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return Note that this exemption is for dependents only; there is no personal exemption for you or your spouse on the New York return.
Step 7: Line 37
Line 35 is NY AGI minus your Line 34 deduction. Subtract Line 36 from Line 35 and you have your New York taxable income on Line 37. If deductions and exemptions exceed your adjusted income, leave Line 37 blank rather than entering a negative figure.1Tax.NY.Gov. Instructions for Form IT-201 Full-Year Resident Income Tax Return From there, Line 37 carries into the tax computation section and, for New York City residents, into a separate city tax calculation as well.
Mistakes That Change the Number on Line 37
Three errors show up more than the rest.
Skipping the state and local income tax add-back. If you itemized federally and deducted state income taxes, that amount must return to income on the New York side. Missing it understates NY AGI and typically triggers a notice from the Department of Taxation and Finance.
Applying the wrong pension rule. A New York State, local, or federal government pension is fully subtracted with no age requirement and no cap. The $20,000 exclusion is a separate benefit for private pensions and retirement account distributions once you reach 59½.5Department of Taxation and Finance. Information for Retired Persons Treating a government pension as if it were subject to the $20,000 cap costs you money; claiming the government-pension subtraction for private retirement income overstates it.
Assuming federal itemized deductions transfer intact. Once NY AGI passes $100,000 the phase-out starts, and in the $525,000 to $1,000,000 range half the deduction is gone.10Department of Taxation and Finance. 2025 Instructions for Form IT-196 Building an estimate off the federal number without running the New York reductions leaves Line 37 too low and the tax bill too high a surprise.