ECommerce websites are designed to accept money.  You may be accepting money for services or for online purchases. There are always fees associated with accepting credit cards but the higher your monthly sells volume the lower the per transaction fees. While your monthly credit card volume is low your best bet is to use a comprehensive service such as Paypal which works on a per transaction fee schedule. As your monthly volume increases to $3000 or more you should explore other options that involve a monthly subscription fee but have lower per transaction fees.