Deadline calendar
Basketball business deadlines, 2026 to 2027
Only dates confirmed on an official or primary page are listed, and each one links to that page. A date that has not been announced is left off, not guessed. Checked October 31, 2026.
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WNBA
| Date | What | Source |
|---|---|---|
| November 15, 2026 | 2027 WNBA Draft Lottery | WNBA.com |
| April 12, 2027 | 2027 WNBA Draft | WNBA.com |
FIBA
| Date | What | Source |
|---|---|---|
| November 23, 2026 to December 1, 2026 | FIBA World Cup 2027 European Qualifiers, Second Round, Window 5 | FIBA.basketball (European Qualifiers, how to qualify) |
| February 22, 2027 to March 2, 2027 | FIBA World Cup 2027 European Qualifiers, Second Round, Window 6 | FIBA.basketball (European Qualifiers, how to qualify) |
| August 27, 2027 to September 12, 2027 | FIBA Basketball World Cup 2027, Doha, Qatar | FIBA.basketball Event Guide |
NBA
| Date | What | Source |
|---|---|---|
| December 4, 2026 to December 5, 2026 | NBA Cup quarterfinals | NBA.com Key Dates / NBA Cup 101 |
| December 8, 2026 to December 9, 2026 | NBA Cup semifinals (Dec. 8 and/or 9) | NBA.com Key Dates / NBA Cup 101 |
| December 11, 2026 | NBA Cup championship, Hinkle Fieldhouse, Indianapolis | NBA.com NBA Cup 101 |
| February 11, 2027 | NBA trade deadline | NBA.com Key Dates 2026-27 |
| February 19, 2027 to February 21, 2027 | NBA All-Star weekend, Phoenix | NBA.com Key Dates 2026-27 |
| April 11, 2027 | NBA regular season ends | NBA.com Key Dates 2026-27 |
| April 13, 2027 to April 16, 2027 | NBA Play-In Tournament | NBA.com Key Dates 2026-27 |
| April 17, 2027 | NBA Playoffs begin | NBA.com Key Dates 2026-27 |
Tax
| Date | What | Source |
|---|---|---|
| January 15, 2027 | IRS Q4 2026 estimated tax payment due (waived if 2026 return filed by Feb 1, 2027) | IRS 2026 Form 1040-ES |
College
| Date | What | Source |
|---|---|---|
| March 14, 2027 | NCAA Men's Selection Sunday | NCAA.com 2027 March Madness schedule |
| March 16, 2027 to March 17, 2027 | NCAA Men's Tournament Opening Round (First Four) | NCAA.com 2027 March Madness schedule |
| March 18, 2027 to March 19, 2027 | NCAA Men's Tournament first round | NCAA.com 2027 March Madness schedule |
| April 3, 2027 | NCAA Men's Final Four, Ford Field, Detroit | NCAA.com 2027 March Madness schedule |
| April 5, 2027 | NCAA Men's national championship game, Ford Field, Detroit | NCAA.com 2027 March Madness schedule |
Dates can move. Confirm with the source before you plan around one. Not legal, tax or financial advice. See a wrong or missing date? Send a correction with the source link.