Return Due Date
2016 Annual Income Tax Return with Extension Mon, Oct 16, 2017
4th Quarter, 2017 Estimate Tue, Jan 16, 2018
2017 Annual Income Tax Return Mon, Apr 16, 2018

The due date(s) shown above apply to your Federal tax filings. Most states follow the federal due dates, however, you should check with your state's tax department to be sure. Due dates for Local tax estimates / returns may differ — you should check with your local tax authority.