Sales tax you pay when you buy something is part of the cost, just post the total amount

US sales tax set up does not do input tax like countries with VAT

If you are buying inventory items, then download a resellers permit from your state sales tax dept, fill it out […]

Resolution for 'add Purchases issue: 'how to add Purchases Tax on the Tax Settings if it only shows Sales Tax?' available: Yes.

The add Purchases 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 Purchases issue yourself by looking for a resolution described in the article. If it is a complex add Purchases issue or you are unable to solve the issue, you may contact us by clicking here or by using other add Purchases support options.

For more information about resolving issues related to add Purchases in Quickbooks/QBO or to get support for the issue 'how to add Purchases Tax on the Tax Settings if it only shows Sales Tax?', click the link below: