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Avalara Help Center

Why is QuickBooks not calculating tax after installing Avatax?


I just installed Avatax for QuickBooks and it isn't calculating tax.




This will happen if the last step of installing Avatax for QuickBooks is skipped:


  • Log out of QuickBooks
  • Right click QuickBooks and Run as Administrator
  • Log into QuickBooks in single user mode
  • Click File>Avalara>Configuration>Connections>Test Connection
  • Once you see a success close that window
  • You should now be calculating tax without issue after saving an invoice, there will be an Avatax window that pops up showing the calculation and call out to Avatax.