Get approved for casino credit: In most cases, Las Vegas casinos need to see that you are creditworthy and intend to spend a significant amount of money in their establishment before extending a line of credit. Further, you must have the amount you're requesting for the marker in a cash account.

In order to get a casino marker, you will need to fill out a credit application to provide your name, Social Security number, and bank account information. You may request a certain amount, although you should know that the casino does not typically verify that you have that money in your bank account.