You can usually request to cash out either all or part of the money in your account at any time. The best online casinos process your request immediately and cheerfully send the funds within a day. However, some shady sites may take weeks to pay while putting you off with a litany of excuses. As a result, I recommend only playing reputable casinos endorsed by the watchdog groups
In most cases, your money will be sent back to you via the same method you deposited. For example, if you funded your account through NETELLER, then the Internet casino uses that same vehicle to return money to you when you cash out. One exception is credit cards. For example, if your initial deposit of $200 was made with a credit card and you doubled your money, the online casino processes your $400 as such: The casino can only pay back $200 to your credit card; the casino has to pay you any winnings via another method, such as check, wire, and so on.
Transferring money to and from the casino is usually free, although some casinos back on a service charge (especially if you do multiple transactions a month). You may also have to pay bank wire and delivery fees.