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

Unincorporated Business Tax

RCNY tit. 19, ch. 28
in effect

19 RCNY § 28-01 Meaning of Terms.

19 RCNY § 28-02 Unincorporated Business Defined.

19 RCNY § 28-03 Imposition of Tax.

19 RCNY § 28-04 Unincorporated Business Taxable Income.

19 RCNY § 28-05 Unincorporated Business Gross Income.

19 RCNY § 28-06 Unincorporated Business Deductions.

19 RCNY § 28-07 Allocation to New York City.

19 RCNY § 28-08 Deductions Not Subject to Allocation.

19 RCNY § 28-09 Unincorporated Business Exemptions.

19 RCNY § 28-15 Declaration of Estimated Tax.

19 RCNY § 28-16 Payments of Estimated Tax.

19 RCNY § 28-17 Accounting Periods and Methods.

19 RCNY § 28-18 Returns and Payment of Tax.

19 RCNY § 28-19 Returns, Notices, Records and Statements.

19 RCNY § 28-20 Report of Change in Federal or New York State Taxable Income or New York State Sales and Compensating Use Tax Liability.

19 RCNY § 28-21 Interest and Penalties.

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/NYCrules/0-0-0-38974Fetched: 10/24/2026