Tax deadlines
Every federal and Kansas date our clients plan around, for tax year 2026. Filter by who you are and add any date to your calendar.
21 deadlines
September 2026
Third-quarter estimated tax
Add to calendar: Third-quarter estimated tax, September 15, 2026
Extended partnership and S‑corporation returns
Add to calendar: Extended partnership and S‑corporation returns, September 15, 2026
October 2026
Extended individual returns
Add to calendar: Extended individual returns, October 15, 2026
Extended C-corporation returns
Add to calendar: Extended C-corporation returns, October 15, 2026
November 2026
Third-quarter payroll tax return
Add to calendar: Third-quarter payroll tax return, November 2, 2026
January 2027
Fourth-quarter estimated tax
Add to calendar: Fourth-quarter estimated tax, January 15, 2027
February 2027
W-2s and 1099-NECs to workers and the IRS
Add to calendar: W-2s and 1099-NECs to workers and the IRS, February 1, 2027
Fourth-quarter payroll and annual unemployment tax
Add to calendar: Fourth-quarter payroll and annual unemployment tax, February 1, 2027
Farm employee payroll tax return
Add to calendar: Farm employee payroll tax return, February 1, 2027
March 2027
Farmers who skipped estimates file and pay in full
Add to calendar: Farmers who skipped estimates file and pay in full, March 1, 2027
Partnership and S‑corporation returns, or extension
Add to calendar: Partnership and S‑corporation returns, or extension, March 15, 2027
April 2027
Individual returns, or extension
Add to calendar: Individual returns, or extension, April 15, 2027
First-quarter estimated tax
Add to calendar: First-quarter estimated tax, April 15, 2027
C-corporation returns, or extension
Add to calendar: C-corporation returns, or extension, April 15, 2027
First-quarter payroll tax return
Add to calendar: First-quarter payroll tax return, April 30, 2027
June 2027
Second-quarter estimated tax
Add to calendar: Second-quarter estimated tax, June 15, 2027
August 2027
Second-quarter payroll tax return
Add to calendar: Second-quarter payroll tax return, August 2, 2027
September 2027
Third-quarter estimated tax
Add to calendar: Third-quarter estimated tax, September 15, 2027
Extended partnership and S‑corporation returns
Add to calendar: Extended partnership and S‑corporation returns, September 15, 2027
October 2027
Extended individual returns
Add to calendar: Extended individual returns, October 15, 2027
November 2027
Third-quarter payroll tax return
Add to calendar: Third-quarter payroll tax return, November 1, 2027
If you miss a deadline
File as soon as you can, even if you can’t pay. The penalty for filing late is usually much larger than the penalty for paying late.
Start with a 20‑minute intro call.
Free, by phone or video. We’ll ask a few questions, tell you what we need, and quote a fixed fee before any work starts.
The office
214 Commercial Street
Alder Grove, KS 66800
[email protected]
For questions only. Never send documents by email.
| Monday to Friday | 8:00 am – 5:00 pm |
|---|---|
| Saturday | Closed |
| Sunday | Closed |
| Monday to Friday | 8:00 am – 6:00 pm |
|---|---|
| Saturday | 9:00 am – 1:00 pm |
| Sunday | Closed |
Parking behind the building off Walnut Street. Step-free entrance at the back door.