- Employers. File Form 941 for 2nd quarter 2016. File Form 5500 or 5500- EZ for calendar- year 2015 due if you maintain an employee benefit plan, or file Form 5558 to request an extension.
- Individuals. 3rd installment of 2016 estimated tax due.
- Calendar-year C Corporations. 3rd installment of 2016 estimated tax due.
- Corporations. 2015 returns due for Calendar-year C & S Corporations (Form 1120 & 1120S) if on extension.
- Partnerships. Calendar-year 2015 return due (Form 1065) if on extension.