August 2
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates July 26-28.

August 4
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates July 29- Aug. 1.

August 9
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates Aug. 2-4.

August 10
Employees who work for tips. Employees who received $20 or more in tips during July must report them to their employer using Form 4070.

Social security, Medicare, and withheld income tax. File Form 941 for the second quarter of 2017. This due date applies only if you deposited the tax for the quarter timely, properly, and in full.

August 11
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 5-8.

August 15
Social security, Medicare, and withheld income tax. If the monthly deposit rule applies, deposit the tax for payments in July. Nonpayroll withholding: If the monthly deposit rule applies, deposit the tax for payments in July.

August 16
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 9–11.

August 18
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 12–15.

August 23
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 16–18.

August 25
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 19–22.

August 30
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 23-25.

September 1
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 26-29.