For AI agents: read the machine-readable documentation index at /llms.txt or the single-file full reference at /llms-full.txt.

City Unincorporated Business Income Tax

NYC Admin. Code tit. 11, ch. 5
in effect

NYC Admin. Code § 11-501 Meaning of terms.

NYC Admin. Code § 11-502 Unincorporated business defined.

NYC Admin. Code § 11-503 Imposition of tax.

NYC Admin. Code § 11-504 Taxable years to which tax applies; tax for taxable years beginning prior to and ending after January first, nineteen hundred sixty-six.

NYC Admin. Code § 11-505 Unincorporated business taxable income.

NYC Admin. Code § 11-506 Unincorporated business gross income.

NYC Admin. Code § 11-507 Unincorporated business deductions.

NYC Admin. Code § 11-508 Allocation to the city.

NYC Admin. Code § 11-509 Deductions not subject to allocation.

NYC Admin. Code § 11-510 Unincorporated business exemptions.

NYC Admin. Code § 11-511 Declaration of estimated tax.

NYC Admin. Code § 11-512 Payments of estimated tax.

NYC Admin. Code § 11-513 Accounting periods and methods.

NYC Admin. Code § 11-514 Returns, payment of tax.

NYC Admin. Code § 11-515 Time and place for filing returns and paying tax.

NYC Admin. Code § 11-516 Signing of returns and other documents.

NYC Admin. Code § 11-517 Extensions of time.

NYC Admin. Code § 11-518 Requirements concerning returns, notices, records and statements.

NYC Admin. Code § 11-519 Report of change in federal or New York state taxable income.

NYC Admin. Code § 11-519.1 Report of change of state sales and compensating use tax liability.

NYC Admin. Code § 11-520 Change of election.

NYC Admin. Code § 11-521 Notice of deficiency.

NYC Admin. Code § 11-522 Assessment.

NYC Admin. Code § 11-523 Limitations on assessment.

NYC Admin. Code § 11-524 Interest on underpayment.

NYC Admin. Code § 11-525 Additions to tax and civil penalties.

NYC Admin. Code § 11-526 Overpayment.

NYC Admin. Code § 11-527 Limitation on credit or refund.

NYC Admin. Code § 11-528 Interest on overpayment.

NYC Admin. Code § 11-529 Petition to tax appeals tribunal.

NYC Admin. Code § 11-530 Review of tax appeals tribunal's decision.

NYC Admin. Code § 11-531 Mailing rules; holidays; miscellaneous.

NYC Admin. Code § 11-532 Collection, levy and liens.

NYC Admin. Code § 11-533 Transferees.

NYC Admin. Code § 11-534 Jeopardy assessment.

NYC Admin. Code § 11-535 Criminal penalties; cross-reference.

NYC Admin. Code § 11-536 Armed forces relief provisions.

NYC Admin. Code § 11-537 General powers of commissioner of finance.

NYC Admin. Code § 11-538 Secrecy requirement and the penalties for violation.

NYC Admin. Code § 11-539 Inconsistencies with other laws.

NYC Admin. Code § 11-540 Disposition of revenues.

Source: City of New York, Charter, Administrative Code and Rules (American Legal Publishing XML export, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/newyorkcity/latest/NYCadmin/0-0-0-9324Fetched: 10/24/2026