Important Dates

Tax Calendar of Events

January 15, 2026

Fourth Quarter 2025 Estimated Tax Payment Due.

February 15, 2026

Date for complete information to be received by client to file Partnership and S-Corporation Tax Returns by March 15, 2026.

March 15, 2026

Date for complete information to be received by client to file Individual (Form 1040) Income Tax Returns by April 15, 2026.

March 16, 2026

Partnership and S-Corporation Tax Returns Due.

April 15, 2026

Individual (Form 1040) Tax Returns Due.

First Quarter 2026 Estimated Tax Payments Due.

Individual (Form 1040) Extended Tax Return Payment Due.

June 16, 2026

Second Quarter 2026 Estimated Tax Payment Due.

September 15, 2026

Extended Partnership and S-Corporation Tax Returns Due.

Third Quarter 2026 Estimated Tax Payments Due.

October 15, 2026

Extended Individual (Form 1040) Tax Returns Due.

January 15, 2027

Fourth Quarter 2026 Estimated Tax Payments Due.