For those people looking to start playing casino games online, the choice of which of the many available online casinos offers the best range of casino games may appear to be the most important decision they have to make. Certainly it is important that the chosen online casino offers an interesting range, and that the site is operated in a professional manner with appropriate security and fairness, but there is another choice which is just as important for new casino games players, and that is how they propose to fund their online casino account. In order to play casino games online, we need to deposit money into an account, and hopefully also be able to withdraw any winnings if we choose. All the major online casino operators offer a choice of deposit options which usually include credit cards, debit cards, e-wallets and sometimes even cash if you are playing with Paddy Power or Ladbrokes in Ireland. Regular readers of this site will be aware that we are not great fans of using credit cards to fund any gambling, but if a credit card is your preferred option be aware that the best known card operated by Visa does have downsides. Visa credit cards are almost universally accepted as a deposit option, and most Visa casinos will not charge you to use a Visa card, but Visa themselves almost certainly will charge you if you use their card to fund any form of gambling. For reasons best known to themselves, Visa will charge 2% on any transactions involved with gambling, even if you are playing casino games for very small stakes. Using a Visa card will therefore put you down 2% before you have even placed a bet. It is also important to understand that depositing money into an online casino account is considered to be a cash transaction, and all the credit card operators, including Visa will therefore start to charge interest on that money from day one. By all means use a Visa credit card if you must, but be aware of the potential costs.