Roulette, blackjack and table games
What happens if I get blackjack and the dealer also gets blackjack?
Direct answer
Under standard rules it is a push and the original stake is returned, subject to special variant rules.
How to use this answer
This answer is based on the mathematical principle or published rule identified in the source below. If the question involves a live betting market, confirm its settlement definition before applying it to a specific bet.
Separate the game’s mathematical probabilities from the casino’s house procedure. The odds may be calculable even where split, surrender, side-bet or payout policies differ between tables.