> ## Knowledge Base Index
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> Use this file to discover available pages before exploring further.
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# Where can I provide the IOSS/EORI/VAT/tax ID number?

If you would like to include your IOSS, EORI, VAT or Tax ID number for your shipment, you can easily do so by following these steps: 

### Include IOSS

1. Log in to your JustShip account.

2. Go to Profile (under Preferences).

3. Enter your number in the IOSS Number (Optional) field.

![](https://storage.crisp.chat/users/helpdesk/website/-/a/2/7/e/a27e534d02000800/screenshot-2026-05-22-at-12162_3bxaq0.png)

4. Click Save Changes.

|| 💡 Approval takes \~3 working days.
Once approved, your IOSS number will be applied automatically to eligible EU shipments — no need to re-enter it each time.
Please note that IOSS is currently only available for Express shipments..

### Include Tax ID / EORI / VAT

1. Fill out your [online shipment form](https://www.justship.sg/create-shipment) as usual. 

2. Before making payment for your order, find the Comments box provided in the form. 

![](https://storage.crisp.chat/users/helpdesk/website/-/a/2/7/e/a27e534d02000800/image_ajvqbr.png)

3. Leave your EORI, VAT or Tax ID number in the comment box. 

If you have already filled up your form, you can send the details over to us on [WhatsApp](https://wa.me/6591187971) with your shipment ID, and we will include it on your behalf during the processing of your shipment. 