Global Tax Module in Odoo

This module assign tax to all sale order line/purchase order line/ invoice line by choosing tax from a new field put above sale order line/purchase order line/ invoice line.

Sale

Create sale order from the location Sales -> Orders -> Quotations. New field ‘Tax’ created in sale order as shown in the below screenshot.

Field will show only taxes with type ‘sale’. Select tax and click on the ‘Apply to Lines’ button. It will change the tax of every line to the selected one.

Invoice

Create customer Invoice through Invoicing -> Sales -> customer Invoice. A new field in invoice created as shown in the below screenshot in both customer invoice and vendor bills.

Field will show only taxes with type ‘sale’ for customer invoice and type ‘purchase’ for vendor bills. Select tax and click on the ‘Apply to Lines’ button. It will change the tax of every line to the selected one.

Purchase

Create purchase order from Purchases -> Purchase -> Request for Quotation. A new field as shown below has been created with domain type ‘purchase’.

Select tax and click on ‘Apply to Lines’ button to change the tax in lines to the selected one.