Most cards with a >$10k limit let you spend 2x your credit limit as long as you pay it off in 1 month. So if your limit is $20k (typical), you can spend up to $

Most cards with a >$10k limit let you spend 2x your credit limit as long as you pay it off in 1 month. So if your limit is $20k (typical), you can spend up to $40k. Also see "NPSL cards"