June 15, 2018 @ 12:00 am - June 16, 2018 @ 12:00 am Deposit payroll tax for May if the monthly deposit rule applies.
June 15, 2018 @ 12:00 am - June 16, 2018 @ 12:00 am Corporations: Deposit the second installment of your 2018 estimated tax.
June 15, 2018 @ 12:00 am - June 16, 2018 @ 12:00 am Individuals living outside the U.S.: File Form 1040. For automatic 4 month extension file Form 4868 and deposit estimated tax.