
March Madness bracket pools are one of the most popular ways to engage with the NCAA Tournament, but their legality depends on state laws regarding gambling, social gaming, and prize pools. While casual, low-stakes office or friend-group pools often go unnoticed, some states have explicit rules on whether these contests are considered illegal gambling.
Most states evaluate bracket pools based on three key factors:
The following states have laws that could classify paid-entry bracket pools as illegal gambling:
Gambling laws could apply to bracket pools with entry fees.
Strict anti-gambling laws prohibit private pools with entry fees.
Gambling laws are broad enough to potentially cover office pools.
Online betting is legal, but private gambling—including paid-entry pools—is restricted.
No legal forms of gambling, including bracket pools with paid entries.
If you live in a state with strict gambling laws, you can still participate in free-to-play bracket contests offered by places such as:
While casual, unpaid bracket pools are widely accepted, paid-entry contests could be considered illegal gambling in some states. If you’re unsure, check your state’s gambling laws or participate in free-to-play alternatives.
For more information, check out our guide on the difference between a bracket pool and standard sports betting.


To make sure you get accurate and helpful information, this guide has been edited by Nick Slade as part of our fact-checking process.
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