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sourceDocument: Australia Finance and Supply Chain
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/pt-BR/source-to-pay-operations

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ft:locale :

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ft:publication_title :

    - Australia Finance and Supply Chain

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# Tax calculations

# Tax calculations {#ariaid-title1}

* Versão de lançamento: Australia
* 
* Atualizado 12 de mar. de 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 min. de leitura

Calculate the final tax for an invoice based on the tax type and the tax tolerance variance.

The Accounts Payable Operations application enables the validation of
supplier-provided taxes
for enhanced tax compliance and improved
operational effectiveness.

Tax specialists create tax types of either indirect tax or withholding tax. One
or more tax lines are added to invoice lines.
Based on the tax type, the supplier tax is calculated against the invoice line amount.
If the supplier tax amount is greater
than the system tax amount, an overtax amount variance is
calculated. If the supplier tax is less than the system tax
amount, an
undertax variance is calculated.
You can choose to accept the system tax
or the supplier
tax,which will determine the final tax
that is calculated and displayed on the invoice tax line and invoice header.

For example, for an invoice line
amount of $1000, add a tax line of the indirect tax
type with a supplier tax
of $100. The final tax amount
would be calculated as the sum of $1000 and $100,
for a total of $1100. If you select
the withholding tax type,
the final tax amount is calculated as the difference
between the invoice line amount
of $1000 and the supplier tax
of $100,
for a total of $900.
* **[Create tax codes to be added in an invoice](https://servicenow-prod.fluidtopics.net/7sE_flDLILPhwKNNwbpXiQ)**   
  Create tax codes to be added in an invoice.
* **[Create tax types to be used in an invoice](https://servicenow-prod.fluidtopics.net/OWuGRZ_03~KACYlKHWFnhg)**   
  Create tax types to be added in the invoice.