Employers. For Social Security, Medicare, withheld income tax, and nonpayroll withholding, deposit the tax for payments in June if the monthly rule applies.
Employers. For SocialSecurity, Medicare, and withheld income tax, file Form 941 for the second quarter of 2019. Deposit any undeposited tax. If your tax liability is less than $2,500, you can pay it in full with a timely filed return. If you deposited the tax for the quarter in full and on time, you have until August 12 to file the return.
For federal unemployment tax, deposit the tax owed through June if more than $500.
If you maintain an employee benefit plan with a calendar year-end, file Form 5500 or 5500-EZ for calendar-year 2018.