South Korea

Lotto 6/45 expected value — is it ever worth playing?

Ticket price versus the sum of prize × probability, adjusted for tax and the jackpot-sharing penalty. Enter the current jackpot and see the honest number.

No current jackpot on file for this game — enter the advertised figure from the operator's site below.

Korea taxes lottery prizes at a combined 22% up to ₩300 million and 33% on the portion above (income + local tax).

Break-even jackpot: at the tax and sales figures entered, EV per ticket reaches zero at a jackpot of about ₩6,675,410,000. Two catches: sales — and therefore sharing — rise sharply with the jackpot, and a positive expected value still says nothing about variance or ruin. See why even a +EV jackpot usually isn't worth chasing.

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Last verified: 2026-08-29