Shiptheory offers the functionality for allocating different tax types and tax numbers automatically to different shipments using rules. This guide will explain how to implement these rules to generate different tax numbers for different conditions, whether that's the carrier, channel or recipient's country or any other criteria that can be specific via the rules.


Before reading this article, it is worth understanding the basic shipping rule functionality and how to create them. You can find more information on that here.


Creating The Rule & Setting It's Conditions


Begin by navigating to the 'ADD NEW RULE' section.

Select the carrier & service you'd like to be used when the conditions of the rule are met, and select a new condition for when the service should be used.


Once the condition that selects the rule is met. Navigate to the bottom of the page, click the 'ADVANCED SETTINGS' button

and find the update shipment details section. Here you can automate shipping amendments before the booking is made and select the data type you'd like to be amended.

Here you can select which Duty Tax Type and Tax Number to be selected when the conditions of the rule are met. Here is an example.


Click save when you are happy.


If you have any further questions or are struggling, don't hesitate to get in touch!