The 2025 tax year main deadline for filing federal income tax returns is April 15, 2026
February 2, 2026: Deadline for filing most 1099 forms. This includes the 1099-NEC (Nonemployee Compensation)
March 2, 2026: Deadline for 1099 Paper Forms
Individual Filers and Self-Employed Filers: April 15, 2026
S Corp: March 16, 2026
C Corp: April 15, 2026
Single-Member LLCs: April 15, 2026
Multi-Member LLCs: March 16, 2026
January 15, 2026 - Make last 2025 estimated tax payment
April 15, 2026 - First 2026 estimated tax payment due
June 15, 2026 - Second 2026 estimated tax payment due
September 15, 2026 - Third 2026 estimated tax payment due
February 2, 2026 - Deadline for employers to file Form W-2s with the IRS, unless filed electronically for 2025 forms
February 2, 2026 - Deadline for reporting payments to contract workers on Form 1099-MISC for 2025