RhinoFish - 4:45 pm on May 8, 2013 (gmt 0)
Netmeg, the whole point of the Certified Service Providers and SSUTA is too (1) streamline the complexities out, and (2) make sure the merchant does NOT have to calculate or get into dispute about the details, it's offloaded to the CSPs.
Imo, the royal PITA is the growing numbers of states, completely apart from the MFA, that are passing laws based on weak nexus arguments... meaning, if your client wants to avoid the PITA, there are two choices:
+state by state growing fiasco.
+MFA simplified for merchants, cuz the CSPs do the figuring, and disputes are between the SSUTA and the states (merchants stay out of it).