Deposit payroll tax for payments on Aug 26-29 if the semiweekly deposit rule applies. Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: September 1, 2017 all-day 2017-09-01T00:00:00-07:00 2017-09-02T00:00:00-07:00 ← File Form 720 for the third quarter.Employers: Employees are required to report to you tips of $20 or more earned during August. →