Page 49 - 2021 IRS Tax Calendar - Handbook

September 09/15/21

Schedule Schedule

 Partnerships: File Form 8813  S Corp: File calendar year Form
quarterly payment voucher and 1120S if you timely requested a 6-
pay any tax due. month extension.
 Withholding Agent: File calendar  Individuals: Pay the third
year Form 1042 if you timely installment of your 2021 estimated
requested a 6-month extension. Sample tax - Use Form 1040-ES.
 Foreign Trusts with a U.S. Owner:  Partnerships: File calendar year

File calendar year Form 3520-A if Heading Form 8804 and Forms 8805 if you
you timely requested a 6-month timely requested a 6-month
extension. extension.
 Tax Exempt Orgs: Deposit  Deposit payroll tax for payments
Estimated Tax for 3rd quarter due on Sep 8-10 if the semiweekly
on Unrelated Business Taxable deposit rule applies.
Income for Tax-Exempt  Partnerships: File calendar year
Organizations. Use Form 990-W to Form 1065 if you timely requested

determine the amount of a 6-month extension.
estimated tax payments required.  Corporations: Deposit the third
 Deposit payroll tax for Aug if the installment of your 2021 estimated
monthly deposit rule applies. tax.
 Partnerships: File Form 1065 if you
timely requested a 6-month
extension.