What about a unified interface which takes into account each sub-jurisdiction's arcane rules and gives you advice how to handle things?
Of course you would be paying to keep the product up to date with local laws.
Of course you would be paying to keep the product up to date with local laws.
I once met an SAP-contractor who was paid 5 digit amounts for implementing 1000 loc modules that was required because a tiny paragraph of some pension-law in a single country was updated.