Auto-highlights the current month
January 2025
Jan 15: Q4 2024 Estimated Tax Payment (Individuals)
— Form 1040-ES
February 2025
March 2025
Mar 17: 2024 Partnership & S Corp Returns Due (or extend to Sept 15)
— Form 1065,
Form 1120-S,
Form 7004 (extension)
Mar 31: REIT Quarterly Asset Testing
Mar 31: Income Tax Provisions
April 2025
Apr 15: 2024 Individual Returns Due (or extend to Oct 15)
— Form 1040 (PDF),
Form 4868 (extension)
Apr 15: Q1 2025 Estimated Tax Payment (Individuals)
— Form 1040-ES
Apr 15: Q1 2025 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Apr 15: 2024 C Corporation Returns Due (or extend to Oct 15)
— Form 1120,
Form 7004 (extension)
Apr 30: Q1 2025 Form 941 Due
— Form 941
May 2025
May 15: 2024 Nonprofit Returns Due (or extend to Nov 15)
— Form 990,
Form 8868 (PDF)
June 2025
Jun 15: Q2 2025 Estimated Tax Payment (Individuals)
— Form 1040-ES
Jun 15: Q2 2025 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Jun 16: U.S. Tax Returns for Taxpayers Working & Living Abroad
— Form 4868,
Form 1040 (PDF)
Jun 30: REIT Quarterly Asset Testing
Jun 30: Income Tax Provisions
July 2025
Jul 31: Q2 2025 Form 941 Due
— Form 941
August 2025
September 2025
Sep 15: Extended Partnership & S Corp Returns Due
— Form 1065,
Form 1120-S
Sep 15: Q3 2025 Estimated Tax Payment (Individuals)
— Form 1040-ES
Sep 15: Q3 2025 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Sep 30: REIT Quarterly Asset Testing
Sep 30: Income Tax Provisions
October 2025
Oct 15: Extended Individual & C Corp Returns Due
— Form 1040 (PDF),
Form 1120
Oct 31: Q3 2025 Form 941 Due
— Form 941
November 2025
Nov 15: Extended 2024 Nonprofit Returns Due
— Form 990
December 2025
Dec 15: Q4 2025 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Dec 31: REIT Quarterly Asset Testing
Dec 31: Income Tax Provisions
January 2026
Jan 15: Q4 2025 Estimated Tax Payment (Individuals)
— Form 1040-ES
Feb 2: Q4 2025 Form 941 Due (Jan 31 falls on a weekend)
— Form 941
Feb 2: Furnish Forms 1099 to Recipients (most types, incl. 1099-NEC/1099-MISC) (Jan 31 falls on a weekend)
— General Instructions for Certain Information Returns
February 2026
March 2026
Mar 16: 2025 Partnership & S Corp Returns Due (or extend to Sept 15)
— Form 1065,
Form 1120-S,
Form 7004 (extension)
Mar 31: REIT Quarterly Asset Testing
Mar 31: Income Tax Provisions
April 2026
Apr 15: 2025 Individual Returns Due (or extend to Oct 15)
— Form 1040 (PDF),
Form 4868 (extension)
Apr 15: Q1 2026 Estimated Tax Payment (Individuals)
— Form 1040-ES
Apr 15: Q1 2026 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Apr 15: 2025 C Corporation Returns Due (or extend to Oct 15)
— Form 1120,
Form 7004 (extension)
Apr 30: Q1 2026 Form 941 Due
— Form 941
May 2026
May 15: 2025 Nonprofit Returns Due (or extend to Nov 16)
— Form 990,
Form 8868 (PDF)
June 2026
Jun 15: Q2 2026 Estimated Tax Payment (Individuals)
— Form 1040-ES
Jun 15: Q2 2026 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Jun 15: U.S. Tax Returns for Taxpayers Working & Living Abroad
— Form 4868,
Form 1040 (PDF)
Jun 30: REIT Quarterly Asset Testing
Jun 30: Income Tax Provisions
July 2026
Jul 31: Q2 2026 Form 941 Due
— Form 941
August 2026
September 2026
Sep 15: Extended Partnership & S Corp Returns Due
— Form 1065,
Form 1120-S
Sep 15: Q3 2026 Estimated Tax Payment (Individuals)
— Form 1040-ES
Sep 15: Q3 2026 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Sep 30: REIT Quarterly Asset Testing
Sep 30: Income Tax Provisions
October 2026
Oct 15: Extended Individual & C Corp Returns Due
— Form 1040 (PDF),
Form 1120
Nov 2: Q3 2026 Form 941 Due (Oct 31 falls on a weekend)
— Form 941
November 2026
Nov 16: Extended 2025 Nonprofit Returns Due (Nov 15 falls on a weekend)
— Form 990
December 2026
Dec 15: Q4 2026 Estimated Tax Payment (Corporations)
— Form 1120-W (instructions)
Dec 31: REIT Quarterly Asset Testing
Dec 31: Income Tax Provisions
January 2027
Jan 15: Q4 2026 Estimated Tax Payment (Individuals)
— Form 1040-ES
Feb 1: Q4 2026 Form 941 Due (Jan 31 falls on a weekend)
— Form 941
Feb 1: Furnish Forms 1099 to Recipients (most types, incl. 1099-NEC/1099-MISC) (Jan 31 falls on a weekend)
— General Instructions for Certain Information Returns
