Understanding Key Tax Dates: An Essential Guide
Updated: 1 day ago
Knowing the key tax dates each year is important for individuals and businesses to ensure a smoother tax filing experience. These significant dates in the tax calendar help taxpayers stay organized and compliant with tax regulations, and can help them effectively manage their financial responsibilities. Remember, missing a deadline can result in penalties, interest charges, or even missed opportunities for deductions and credits.
2026 Key Tax Dates
January 15: 4th Quarter 2025 Estimated Payment Due
January 31: W-2 & 1099-NEC Filing Deadline
March 16: S-Corp & Partnership Returns Due (Forms 1120-S & 1065)
April 15: Individual Income Tax (1040) & C-Corp Returns Due
April 15: FBAR (FinCEN 114) & 1st Quarter Estimated Payment Due
June 15: Deadline for U.S. Citizens Living Abroad (Expats)
September 15: 3rd Quarter Estimated Payment Due
October 15: Extended Individual Return Deadline
October 15: Corporations: File calendar year Form 1120 if you timely requested a 6-month extension.
