2025 Filing Deadline 2025 Extension. 18 april 2025 (for online submissions) if you operate as a sole proprietor, your business earnings will be reported as part of your individual income tax. Deadline to make ira and hsa contributions for 2024.

The article provides a 2025 tax deadline calendar, highlighting key dates for different forms, estimated tax payments, and filing requirements. For most filers, tax returns are due april 15, 2025.