Events - 15 Oct 24

Calendar-year bankruptcy estates: File a 2023 income tax return (Form 1041) if an automatic six-month extension was filed. Pay any tax, interest and penalties due.

Calendar-year C corporations: File a 2023 income tax return (Form 1120) if an automatic six-month extension was filed. Pay any tax, interest and penalties due.

Calendar-year C corporations: Make contributions for 2023 to certain employer-sponsored retirement plans if an automatic six-month extension was filed.

Employers: Deposit nonpayroll withheld income tax for September if the monthly deposit rule applies.

Employers: Deposit Social Security, Medicare and withheld income taxes for September if the monthly deposit rule applies.

Individuals: File a 2023 gift tax return (Form 709) if an automatic six-month extension was filed. Pay any tax, interest and penalties due.

Individuals: File a 2023 income tax return (Form 1040 or Form 1040-SR) if an automatic six-month extension was filed (or if an automatic four-month extension was [...]

Individuals: Make contributions for 2023 to certain existing retirement plans or establish and contribute to a SEP for 2023 if an automatic six-month extension was filed.