Question: how much tax do you pay on vegas winnings?
Answer: The withholding tax is 30% if a foreign gambler. The tax rate is 25 percent if the amount is over $5,000 (except for non-resident aliens.) When your winnings exceed a specified threshold and/or tax is withheld, the casino will give you an IRS Form W-2G showing the amount you won and the amount of tax withheld.