Important Dates
Deadlines for the 2026 tax year (filed in 2027).
These deadlines update automatically each year. When a due date falls on a weekend or federal holiday, it moves to the next business day.
| Date | What's due |
|---|---|
| January 15, 2027 | Fourth quarter 2026 estimated tax payment due |
| January 26, 2026 | IRS begins accepting e-filed returns |
| February 1, 2027 | Employers must issue W-2s and most 1099s |
| March 15, 2027 | Partnership and S corporation returns due |
| April 15, 2027 | Individual returns and extension requests due |
| April 15, 2027 | First quarter 2027 estimated tax payment due |
| June 15, 2027 | Second quarter 2027 estimated tax payment due |
| September 15, 2027 | Third quarter 2027 estimated tax payment due |
| October 15, 2027 | Extended individual returns due |
Missed a deadline?
File anyway. Penalties grow the longer a return goes unfiled, and if you're owed a refund there may be no penalty at all. We handle prior year returns regularly.
An extension is not a payment plan
An extension gives you more time to file, not more time to pay. If you expect to owe, pay what you can by the April deadline to limit interest and penalties.