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What is IOSS and how to add it?
What is IOSS and how to add it?

Learn how to add IOSS number in Multiorders for your international shipments

Updated over a week ago


The Import One-Stop-Shop (IOSS) is the electronic portal businesses can use to facilitate VAT e-commerce transactions when shipping internationally. The IOSS VAT identification number consists of 12 alphanumeric characters.

This number only applies to multi-vendor marketplaces that collect taxes on your behalf. These include Amazon, eBay, and Etsy.

Typically If you're running your own hosted shop on Shopify, the IOSS number is not applicable to your store, but we have encountered situations where this was required, so the option is available for all stores within Multiorders.

If the IOSS code is not applicable to you, please ignore any warning that you see in the Ship Order menu.

How to add your IOSS code?

In order to add IOSS number in Multiorders on your marketplace, go to the Integrations page.

If you have already connected your marketplace, go to the Connected Integrations area and on your marketplace window click on the Edit button:

An integration window will open where you can find the IOSS number field at the bottom. Enter your IOSS number and click on Save:

If you are just about to connect your marketplace for the first time, on the Integrations page go to the Add New Integration area, click on your marketplace and you can fill in an IOSS number on the integration form together with other details.

Local Orders?

If you need an IOSS number on orders you created locally within multiorders by hand or via .csv, let our support staff know and they will be able to add it for you. Unfortunately at this moment in time it is impossible to save this info on your own.

Want to know more?

If you would like to read more about the IOSS code requirements, please visit for additional info.

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