The Krack vulnerability is potentially affecting every Wi-Fi device. Learn more about it and use this protection guide to secure your data. The Krack vulnerability is potentially affecting every Wi-Fi device.
In addition to the per transaction fee charged to you by the credit card processing company, you may also be assessed a minimum monthly fee. If you do not do a certain level of credit card business per month, the company will charge a minimum fee, usually around $25-$50 per month.
Among the 2,202 credit cards NerdWallet examined in its 2015 industry study, the average annual fee was $58. So if you earned 3 percent cash back on all purchases, which is a high rewards rate, youâd have to spend almost $2,000 a year with your card just to break even.