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How do I resolve 'Tax could not be calculated: Object Reference not set to instance of an object' in QuickBooks Desktop?

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Overview

You are trying to post an invoice in QuickBooks but receive error 'Tax could not be calculated: Object Reference not set to instance of an object'.

Environment

QuickBooks Desktop

Resolution

  • Close QuickBooks
  • Pull up the Task Manager and end any processes starting with "QB", "Intuit", "AV", "AvaTax", and "Avalara"
  • Open QuickBooks
  • Click File > AvaTax > Utilities, click Synchronize & View Unresolved Sales Tax Errors
    • Select the invoice(s) receiving the error
    • Click "Recalculate" or "Calculate All"
    • Invoice will display line Total sales tax calculated by AvaTax