Tax Filing Reminders – June 2021

For OK, LA, & TX residents and entities, June 15 is the due date for

  • 2020 individual income tax returns and payments
  • 2020 gift tax return
  • 2020 calendar-year C corporation income tax returns and payments
  • 2020 calendar-year fiduciary income tax returns and payments
  • 2020 Forms 990-T and payments for retirement plans and IRAs
  • 2020 calendar-year S corporation income tax returns
  • 2020 calendar-year partnership returns
  • First installment of 2021 estimated tax
  • Making 2020 IRA contributions and Oklahoma 529 plan contributions
  • Calendar-year corporations to elect S corporation status for 2021
  • Forms 990 and 990-T for 2020 calendar-year exempt organizations

June 15 is also the due date for

  • Texas Franchise Tax Returns for all filers
  • Second installment of 2021 estimated tax

September 15 is the due date for

  • 2021 calendar-year corporations third installment of estimated income tax
  • 2021 individual and trust third installment of estimated income tax
  • 2020 calendar-year S corporation income tax return (Form 1120S) on extension
  • 2020 calendar-year partnership income tax return (Form 1065) on extension

September 30 is the due date for

  • 2020 estate and trust income tax return (Form 1041) on extension

October 15 is the due date for

  • 2020 calendar-year C corporation income tax return (Form 1120) on extension
  • 2020 individual income tax return (Form 1040) on extension
  • 2020 gift tax return (Form 709) on extension
  • 2020 report of Foreign Bank & Financial Accounts (FBAR, Form 114)