It used to be that casinos would make players wait between 3-5 days for withdrawals to be processed, but the process at fast-withdrawals casinos is much faster, with many withdrawals taking place in less than 24 hours and in some cases, near-instantly. This means the winnings can be back in your bank account quicker than ever. A fast withdrawal casino or a fast withdrawal betting site is a website that pays players out instantly once their payment request has been verified.