August 1 — Certain small employers
Deposit any undeposited tax if your tax liability is $2,500 or more for 2017 but less than $2,500 for the second quarter.
August 1 — Federal unemployment tax
Deposit the tax owed through 06-if more than $500.
August 1 — All employers
If you maintain an employee benefit plan, such as a pension, profitsharing, or stock bonus plan, file Form 5500 or 5500EZ for calendar year 2017. If you use a fiscal year as your plan year, file the form by the last day of the seventh month after the plan year ends.
August 10 — Employees who work for tips
If you received $20 or more in tips during July, report them to your employer Details
August 10 — Social security, Medicare, and withheld income tax
File Form 941 for the second quarter of 2018. This due date applies only if you deposited the tax for the quarter timely, properly, and in full.
August 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in July.