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Avalara Help Center

Why does the Zip code change with General Delivery?


We are running transactions with General Delivery on line address  it's changing the zip-code and returning a incorrect tax rate.


Avalara Avatax


  • When General Delivery is used it generalizes the address it can change the base zip code as well as add the zip-code extension '9999' for this reason General Delivery is a last resort to pass address validations with new addresses that are not in the system yet 

This is not a replacement for a street address.