New York Cost Segregation: State Depreciation and City Tax Review
By AE Tax Advisors · Published 2026-08-11 · Updated November 8, 2026.
A federal cost segregation projection is not a complete New York tax projection. Review the owner's return type, the asset-level state modifications and any separate New York City obligations.
Maintain a New York depreciation schedule
New York generally requires adjustments for federal Section 168(k) bonus depreciation, subject to applicable exceptions and instructions. Use Form IT-398 where applicable and the relevant business-return instructions. Reconcile original cost, service date, federal depreciation, New York depreciation and cumulative differences.
Shorter-life classifications may still affect New York deductions even when federal bonus is adjusted. Apply the actual depreciation method and convention rather than dividing every component cost evenly by its recovery period.
Track basis through the disposition
Timing differences change as assets depreciate or are sold. Keep both schedules through replacements, partial dispositions and final sale. Do not assume that a first-year difference stays constant or that every state adjustment reverses over the same period.
Review owner-level limitations
Federal activity and loss limitations affect the starting information, while state modifications can produce a different deduction. Real estate professional status alone does not make every rental loss usable. Review participation, basis, at-risk amounts, carryforwards and the New York computation together.
Distinguish New York City taxes
City resident income tax, unincorporated business tax and corporate taxes are different obligations. Holding or leasing real property for one's own account can qualify for an unincorporated-business exception, but other services or dealer activities require separate review. A city property address alone does not settle the owner's tax classification.
Include transaction costs and current-year changes
Property transfers and controlling-interest transfers may raise separate transfer-tax questions. Recent New York changes also affect other federal research and depreciation provisions; do not extend one conformity conclusion to every deduction.
Book a Cost Seg Discovery Call with federal and state schedules, ownership records and the anticipated sale timeline.
Frequently Asked Questions
Does a federal bonus deduction establish the New York deduction?
No. Apply the relevant New York adjustments and return instructions.
Does owning a city rental automatically create unincorporated business tax?
No. Review the own-account real-property rules and actual activities.
Sources and review notes
Reviewed November 8, 2026 by AE Tax Advisors. Examples are illustrative; apply the rules to the relevant tax year and records. See our editorial policy.