Prerequisites
Make sure you have the "Admin" role permissions.
Step-by-Step Instructions:
Step 1: Access Company Settings
Go to General Settings.
Navigate to Configuration.
Go to Company Settings.
Step 2: Navigate to Purchase Order Settings
Click on Purchase Order.
Step 3: Enable User-Selected Tax
Enable "User selected Tax".
Step 4: Save Settings
Once enabled, save the changes.
Step 5: Access User Tax Settings
Go back to Configurations.
Click on User Tax (under Master Data).
Step 6: Add User Tax Details
Add the details along with the tax rate.
Click on "Create User Tax" to save.