Deadline for receiving Tax Forms, W2, 1099-MISC, 1099-NEC, 1099-B, 1099-S, etc.

"Tax Day" Last day for on-time filing of federal and state IRS income tax returns or for submitting extension requests (Form 4868).

Due date for filing approved extensions for federal, state and S-Corp/Partnership income tax returns

IRS E-file goes "live" allowing acceptance and processing of electronic tax returns for the vast majority of tax filers.

S Corporation and Partnership tax returns or extension requests due

U.S. citizens or resident aliens living abroad must file tax returns by this date (or request a four-month extension).