Earlier Due Date for NYC-204
The due date for the 2016 Form NYC-204, Unincorporated Business Tax Return for Partnerships (Including Limited Liability Companies), is the 15th day of the third month, which is March 15, 2017 for calendar year entities. This is one month earlier than it was in prior years, and it matches the due date for federal and New York State partnership tax returns.
However, estimated tax payments for the first quarter of 2017 made using Form NYC-5UB,Partnership Declaration of Estimated Unincorporated Business Tax, are still due on April 18, 2017.