Skip to main content
Avalara Help Center

Credit and rebill a customer in AvaTax

This article applies to:AvaTax

In certain cases, your business may need to credit sales tax back to a customer. When this happens, the most accurate method is a credit and rebill, which consists of adding two new transactions: a negative transaction that cancels out the original, and a new transaction with corrected details.

You might need to credit and rebill if a customer provides an exemption certificate after being charged sales tax on a transaction. With this method, AvaTax reflects that the customer was correctly refunded for the sales tax they paid. 


  1. Log in to AvaTax and go to Transactions > Transactions.
  2. Create a negative transaction:
    1. Select Add Transaction.
    2. Enter document details for the transaction. Aside from the Document Code, these should be identical to the original transaction. 
      Tip icon It can be helpful to use document codes that indicate the new transaction's purpose. For example, if the original transaction's code was INV123, the new transactions could use INV123_Rebill and INV123_Credt.
    3. When you're finished adding document details, select Save and Add Line Detail.
    4. Select Add a line item. Then add line item details that match the original transaction, but with a negative amount. Any discounts should also be negative.
    5. Select Add a line item again to add any other line items from the original transaction.
      When you're finished, this transaction and the original should sum to 0.
    6. Select Save. 
  3. Create a new transaction:
    1. Go back to the main Transactions page, and select Add Transaction again.
    2. Enter the corrected document details.
      For more information on exempting a customer from sales tax, see Options for exempting customers.
    3. Optional: If you need to override the tax date or tax amount, select Add Additional Information and Tax Overrides.
      1. Select the checkbox to the left of Override the Tax Amount or Specify a Tax Date That is Different From the Document Date.
      2. Select the Override Type:
        • Tax Amount: Select this option if you've calculated the tax outside of AvaTax. This overrides tax calculation.
        • Tax Date: Select this option if you want tax to be calculated for a date different than the Document Date.
          This is generally used for Return Invoices. Use the date of the original transaction as the Tax Date to make sure that the tax amount on the return invoice matches the tax amount that you originally collected.
      3. Enter an Override Reason to indicate why you're overriding the tax amount or tax date.
    4. When you're finished adding document details, select Save and Add Line Detail.
    5. Select Add a Line Item and enter the new Total Amount.
    6. Select Save.
  4. If you have an integration with AvaTax, reconcile the transactions you added with what's in your business application.
  • Was this article helpful?