October 2024
October 10
Individuals
- Report September tip income of $20 or more to employers (Form 4070).
October 15
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 filed by a taxpayer living outside the United States and Puerto Rico). Pay any tax, interest and penalties due.
October 15
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.
October 15
Individuals
File a 2023 gift tax return (Form 709) and pay any tax, interest and penalties due if an automatic six-month extension was filed.
October 15
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.
October 15
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.
October 15
Calendar-year C corporations
- Make contributions for 2023 to certain employer-sponsored retirement plans if an automatic six-month extension was filed.
October 15
Employers
- Deposit Social Security, Medicare and withheld income taxes for September if the monthly deposit rule applies.
October 15
Employers
- Deposit nonpayroll withheld income tax for September if the monthly deposit rule applies.
October 31
Employers
- Report Social Security and Medicare taxes and income tax withholding for third quarter 2024 (Form 941) and pay any tax due if all of the associated taxes due weren’t deposited on time and in full.
November 2024
November 12
Individuals
- Report October tip income of $20 or more to employers (Form 4070).
November 12
Employers
- Report Social Security and Medicare taxes and income tax withholding for third quarter 2024 (Form 941) if all of the associated taxes due were deposited on time and in full.
November 15
Employers
- Deposit Social Security, Medicare and withheld income taxes for October if the monthly deposit rule applies.
November 15
Employers
- Deposit nonpayroll withheld income tax for October if the monthly deposit rule applies.
November 15
Calendar-year exempt organizations
- File a 2023 information return (Form 990, Form 990-EZ or Form 990-PF) if a six-month extension was filed. Pay any tax, interest and penalties due.
December 2024
December 10
Individuals
- Report November tip income of $20 or more to employers (Form 4070).
December 16
Calendar-year corporations
- Pay the fourth installment of 2024 estimated income taxes, completing Form 1120-W for the corporation’s records.
December 16
Employers
- Deposit Social Security, Medicare and withheld income taxes for November if the monthly deposit rule applies.
December 16
Employers
- Deposit nonpayroll withheld income tax for November if the monthly deposit rule applies.