Splitit transactions work on a pre-authorization (aka “pre-auth”) system. Splitit maintains a hold on a consumer’s credit card for the entire amount but charges only the current installment. It temporarily decreases their available credit limit by blocking the total amount of the purchase, until the transaction is complete. As the consumer pays each installment, the amount blocked (or held) on their credit card decreases, until the purchase is completely paid off. This way, Splitit ensures the shopper is capable of paying the total price. A shopper is only approved to use Splitit’s installment-payment option if they have enough credit available to cover the full purchase price.