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The Biggest Unclaimed Lottery Prizes in UK History
The biggest unclaimed lottery prize in UK history is also the biggest in the world: a £63.8 million EuroMillions jackpot, won by a ticket bought in the Stevenage and Hitchin area of Hertfordshire on 8 June 2012 — and never, ever claimed.
The £63.8 million that vanished
The draw that night was a £127 million two-ticket jackpot: a Belgian player promptly claimed their half, while the British half sat waiting. The National Lottery named the purchase area, ran a national publicity campaign and even put up billboards urging the winner to come forward. Nobody did. On 5 December 2012, the 180-day window closed, and £63.8 million — plus its accrued interest — passed to Good Causes. Someone in Hertfordshire almost certainly still doesn’t know.
The near-misses that ended happily
Not every mystery ends in loss. A £40.9 million EuroMillions prize from December 2019 went unclaimed long enough to make national news before its winners finally surfaced in March 2020, keeping their anonymity and their fortune. In January 2021, a £20 million special draw winner took almost three weeks to check their online account while the country was urged to log in. The pattern repeats every year at smaller scales — which is exactly why the appeals machine exists.
The world’s other lost fortunes
Abroad, a $77 million Powerball ticket bought at a Georgia truck stop expired in 2011, and a $68 million Mega Millions prize from a Christmas Eve 2002 draw in New York was never validly claimed — though a man later sued for it with a story that investigators found didn’t match the records. The UK’s £63.8 million still towers over them all.
What these stories teach
Every lost jackpot began as an ordinary ticket someone forgot. Check every line against the right draw date, glance at raffle codes as well as numbers, and remember the 180-day clock — a six-month-old ticket in a drawer can still be worth millions.
Frequently asked questions
What is the biggest unclaimed lottery prize ever?
The UK’s £63.8 million EuroMillions jackpot from 8 June 2012, bought in the Stevenage and Hitchin area — it expired unclaimed that December.
Where did the £63.8 million go?
To the National Lottery’s Good Causes fund, along with the interest it had earned during the 180-day window.
Has a big unclaimed prize ever been rescued?
Yes — a £40.9 million EuroMillions win from December 2019 was claimed in March 2020 after months of searching.
Could an unclaimed jackpot happen again?
Yes — prizes go unclaimed every year, which is why the operator publishes purchase locations and runs public appeals.
Related guides: how the 180-day rule works, unclaimed Millionaire Maker millions and the Lotto prize breakdown.