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Jackpot tracker

The latest and biggest reported jackpot wins at casinos and online, each with its source. The all-time record is still the $39.7 million Megabucks jackpot won at the Excalibur in Las Vegas in 2003. Updated 5 October 2026.

Recent jackpot wins

All-time biggest wins

How big jackpots happen

Most record jackpots come from progressive slots, where a small part of every bet on a network of machines or games feeds one growing prize. Read how Megabucks works and how progressive jackpots work, or see the full ranking of the biggest slot jackpots ever won.

A jackpot win is rare by design. The odds on the top prize of a wide-area progressive run into the millions to one, and the money that builds the jackpot comes from everyone else's losing bets.

Frequently asked questions

What is the biggest slot jackpot ever won?

The largest recorded slot machine jackpot is $39,713,982.25, won on a Megabucks machine at the Excalibur in Las Vegas on 21 March 2003, according to Guinness World Records. Online, the biggest payouts have come from networked progressives such as Mega Moolah and Mega Fortune.

How does this tracker work?

We log jackpot wins that are reported by casinos, operators, regulators or news media, with the amount in its original currency, the game, the venue and a link to the source. Wins appear here when we report them or when a reliable source publishes them.

Are jackpots taxed?

It depends on where the win happens. In the United States, casinos report large slot wins to the IRS and gambling winnings count as taxable income. In the UK gambling winnings are not taxed. Check the rules in your own country.