September

    • Monday, September 17 Corporations: File calendar year Form 1120S if you timely requested a 6-month extension.
    • Monday, September 17 Partnerships: File calendar year Form 1065 if you timely requested a 6-month extension.
    • Monday, September 17 Individuals: Pay the third installment of your 2018 estimated tax – Use Form 1040-ES.
  • Monday, September 17 Corporations: Deposit the third installment of your 2018 estimated tax.
  • Monday, September 17 Electing Large Partnerships: File Form 1065-B if you timely requested a 6-month extension.

October

  • Monday, October 15 Individuals: File Form 1040, 1040A, or 1040EZ if you timely requested a 6-month extension.
  • Monday, October 15 Corporations: File calendar year Form 1120 if you timely requested a 6-month extension.
  • Wednesday, October 31 File Form 941 for the third quarter.
  • Wednesday, October 31 Deposit FUTA owed through Sep if more than $500.

November

  • Tuesday, November 13 File Form 941 for the third quarter if you timely deposited all required payments.

December

  • Monday, December 17 Corporations: Deposit the fourth installment of your 2018 estimated tax.


Leave a Reply