Nys-dtf-ct (2K)

The most "interesting" aspect for filers currently is the . Primary Corporation Tax Forms

: Most corporation tax extensions and estimated tax payments must be filed electronically . Paper versions of these extensions (except Form CT-5.1) are generally no longer accepted for processing. nys-dtf-ct

: Previously used for certain tax payments, these are no longer supported for paper processing as of recent tax years. The most "interesting" aspect for filers currently is the

: Provides specific procedures for e-filers and software developers participating in the NYSDTF program. Important Filing Note nys-dtf-ct

: Used by corporations to report changes to unrelated business income or claim overpayments. Key Publications and Guidelines

If you are looking for a deep dive (a "paper") on how these taxes work, these official handbooks are the best resources: