First of all, you should make a list of several providers that offer the features you want, then compare the variable fees that may differ depending on the company you deal with. These fees include things like set-up, cancellation, and monthly minimum, and may be negotiable based on your unique circumstances.

Once you have determined the what your business will be charged for its merchant account, its often a good idea to do a few sample calculations to work out your total credit card processing costs during a good, bad, and average month.

Finally, you should read and double-check the contract, including small print and detailed terms. Dont sign anything until you are confident that you understand all the fees, minimums, termination clauses, and other details. Its important to keep in mind that merchant account providers wont go over every single point with every single customer, and that it is ultimately your responsibility to read and understand the terms.