Price is one of the most important things to consider when choosing a merchant service provider. However, it can be challenging to comprehend the actual payment processing cost due to the many variables involved, including interchange rates, assessment fees, markup, and tiers. Since not all MSPs set their prices the same way, merchant account fees are even more challenging. Unfortunately, the methods used by payment processors to determine transaction costs are not always transparent. However, the more familiar you are with typical pricing models, the more prepared you'll be to select a merchant services provider for your company.