2025 Tax Deadlines
JANUARY 2025
January 15, 2025 (Wednesday)
2024 4th Quarter Estimated Tax Payment (Federal)
2024 December Payroll Tax Deposit (Federal)
January 20, 2025 (Monday)
2024 Annual Form ST-1 (Illinois Sales Tax Return)
January 31, 2025 (Friday)
2024 Form 1099-NEC
2024 Form W-2
2024 Forms 941/940
2024 Form 1099-K
2024 Form 1099-MISC
2024 Form 1099-INT
2024 Annual Form 940 (Federal)
FEBRUARY 2025
February 17, 2025 (Monday)
2025 January Payroll Tax Deposit (Federal)
MARCH 2025
March 17, 2024 (Monday)
2024 Form 1120-S (S-Corporation Tax Return)
2024 Form 1065 (Partnership Tax Return)
2025 February Payroll Tax Deposit (Federal)
APRIL 2025
April 15, 2025 (Tuesday)
2025 1st Quarter Estimated Tax Payment (Federal)
2024 Form 1040 (Individual Tax Return)
2024 Form 1041 (Fiduciary Tax Return)
2024 Form 1120 (C-Corporation Tax Return)
2025 March Payroll Tax Deposit (Federal)
April 21, 2025 (Monday)
2025 1st Quarter Form ST-1 (Illinois Sales Tax Return)
April 30, 2025 (Wednesday)
2025 1st Quarter Form 941 (Federal)
MAY 2025
May 15, 2025 (Thursday)
2025 April Payroll Tax Deposit (Federal)
JUNE 2025
June 16, 2025 (Monday)
2025 2nd Quarter Estimated Tax Payment (Federal)
2025 May Payroll Tax Deposit (Federal)
JULY 2025
July 15, 2025 (Tuesday)
2025 June Payroll Tax Deposit (Federal)
July 21, 2025 (Monday)
2025 2nd Quarter Form ST-1 (Illinois Sales Tax Return)
July 31, 2025 (Thursday)
2025 2nd Quarter Form 941 (Federal)
AUGUST 2025
August 15, 2025 (Friday)
2025 July Payroll Tax Deposit (Federal)
SEPTEMBER 2025
September 15, 2025 (Monday)
2025 3rd Quarter Estimated Tax Payment (Federal)
2024 Extended Form 1120-S (S-Corporation Tax Return)
2024 Extended Form 1065 (Partnership Tax Return)
2025 August Payroll Tax Deposit (Federal)
September 30, 2025 (Tuesday)
2024 Extended Form 1041 (Fiduciary Tax Return)
OCTOBER 2025
October 15, 2025 (Wednesday)
2024 Extended Form 1040 (Individual Tax Return)
2024 Extended Form 1120 (C-Corporation Tax Return)
2025 September Payroll Tax Deposit (Federal)
October 20, 2025 (Monday)
2025 3rd Quarter Form ST-1 (Illinois Sales Tax Return)
October 31, 2025 (Friday)
2025 3rd Quarter Form 940 (Federal)
2025 3rd Quarter Form 941 (Federal)
NOVEMBER 2025
November 17, 2025 (Monday)
2025 October Payroll Tax Deposit (Federal)
DECEMBER 2025
December 15, 2025 (Monday)
2025 November Payroll Tax Deposit (Federal)
JANUARY 2026
January 15, 2026 (Thursday)
2025 4th Quarter Estimated Tax Payment (Federal)
2025 December Payroll Tax Deposit (Federal)
FEBRUARY 2026
February 1, 2026
2025 Annual Form 940 (Federal)
February 15, 2026 (Monday)
2026 January Payroll Tax Deposit (Federal)