In Canada - where I am - and pretty much all of USA - we have at least 2 sales taxes - one from federal government and one local. In many US locale there are more.
The rules to charge each tax is different. For example, where I am, only 1 tax for services, but 2 taxes for products.
Atera only hold 1 sales tax which makes my life (and life of other MSP's, I imagine) very difficult.
I have to change sales tax to higher amount for any invoice I have products on. Then adjust the tax rate back, then re-run the batch for everyone else who has only service.
It'll be nice to hold 2 sales tax rate or more, and assign product/expense and contracts to them.