Missouri is a State that we remit Use Tax and city or county taxes as applicable.
Avalara Tax Calculator shows Tax at 7.6%
Tax shown on our Invoice is 6.35%
The Avalara Tax Report also shows 6.35%
Greene County Tax missing of 1.25% is missing.
The county rate for most states on an Seller's use tax transaction is 0 percent.
This means that if you have line level addresses turning your transaction into an inter-state transaction you will calculate the use tax rate, and the 0 rate for the county in most circumstances.