This thread shows you are using the US version.

The US does not use the VAT tax system, and as a result it  does not do VAT at all

Could you explain why you are wanting to track VAT in a US version?

Resolution for 'add VAT issue: 'I need to add VAT to my expenses' available: Yes.

The add VAT issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the add VAT issue yourself by looking for a resolution described in the article. If it is a complex add VAT issue or you are unable to solve the issue, you may contact us by clicking here or by using other add VAT support options.

For more information about resolving issues related to add VAT in Quickbooks/QBO or to get support for the issue 'I need to add VAT to my expenses', click the link below: