MCB Tax CPAs have compiled a list of 2026 tax filing deadlines and extensions for the 2025 tax year. Contact an MCB Tax Advisor today at 703-218-3600 to discuss your tax filing needs.
| 2026 Tax Filing Deadline | IRS Tax Form | |||
|---|---|---|---|---|
| January 15, 2026 | Q4 2025 Individual Estimated Tax Payments | |||
| February 2, 2026 | Form W-2 (to employees) | |||
| February 2, 2026 | Form W-3 (to IRS) | |||
| February 2, 2026 | Form 1099-NEC or 1099-MISC (to recipients) | |||
| March 16, 2026 | Form 1065 (Partnerships) and Form 1120-S (S Corporations) | |||
| April 15, 2026 | Form 1040 (Individuals), Form 1041 (Trusts) and Form 1120 (C Corporations) | |||
| April 15, 2026 | Q1 2026 Individual and C Corporation Estimated Tax Payments | |||
| May 15, 2026 | Form 990 (Tax Exempt Organizations) | |||
| June 15, 2026 | Q2 2026 Individual and C Corporation Estimated Tax Payments | |||
| July 31, 2026 | Form 5500 (Employee Benefit Plans) | |||
| September 15, 2026 | Q3 2026 Individual and C Corporation Estimated Tax Payments | |||
| September 15, 2026 | Extended Form 1065 and Form 1120-S Returns Due | |||
| September 30, 2026 | Extended Form 1041 Returns Due | |||
| October 15, 2026 | Extended Form 1040 and Form 1120 Returns Due | |||
| November 16, 2026 | Extended Form 990 Returns Due | |||
| January 15, 2027 | Q4 2026 C Corporation Estimated Tax Payments | |||
Learn more about our tax practice, our audit services, our business advisory service or our strategic, smart and wonderfully human team of experts here.
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