EU Tax Exemption App Now Works with UpCart Cart Drawer

UpCart is one of the most popular cart drawer apps for Shopify, used by thousands of stores to improve add-to-cart conversion rates and increase average order value. If you also use the EU Tax Exemption app to handle B2B VAT exemptions, there was previously a compatibility issue: the VAT exemption widget didn’t function correctly inside UpCart’s cart drawer. That’s now fixed. The Translate Product Images app’s EU tax exemption module is fully compatible with UpCart, so B2B customers can complete VAT exemption during the cart process without any friction.

TL;DR: Our EU Tax Exemption app now works seamlessly with the UpCart cart drawer app.
B2B customers can validate their VAT number directly inside the UpCart drawer without leaving the cart.

• Seamless integration: VAT widget appears automatically in your UpCart drawer.
• No setup required: Works out of the box if you have both apps installed.
• Better conversion: Customers stay in the checkout flow while validating their VAT.

If you’re selling to B2B customers in Europe and using UpCart to power your cart experience, you can now offer a smooth tax exemption flow without any extra steps.

What is UpCart?

UpCart is a popular Shopify app that replaces your theme’s default cart drawer with a more customizable, conversion-optimized sliding cart. It offers features like upsells, cross-sells, and a streamlined checkout experience.

Many Shopify merchants use UpCart to boost their average order value and create a more engaging cart experience for their customers.

The challenge for B2B merchants

European B2B buyers expect to enter their VAT number and receive tax exemption before checkout. With the EU Tax Exemption app, this typically happens in the cart – customers validate their VAT number, and the tax exemption is applied automatically.

However, UpCart uses advanced technology (Shadow DOM) to render its cart drawer, which made it incompatible with most third-party widgets. B2B customers using stores with UpCart had to navigate to the full cart page to validate their VAT number, breaking the seamless checkout flow.

How our integration works

Our latest update detects when UpCart is present on your store and automatically injects the VAT validation widget directly into the UpCart drawer. The widget appears above the checkout button, exactly where customers expect it.

Here’s what your B2B customers will experience:

1. Add products to cart: The UpCart drawer opens as usual.
2. See the VAT widget: The tax exemption form appears above the checkout button.
3. Enter VAT details: Customer fills in their email and EU VAT number.
4. Get instant validation: The VAT number is verified against the EU VIES database.
5. Proceed to checkout: Tax exemption is applied, and they can complete their purchase.

Already using both apps?

If you already have both the EU Tax Exemption app and UpCart installed, the integration works automatically. Simply make sure the app embed is enabled in your theme customizer:

1. Go to Online Store > Themes > Customize
2. Click on App embeds (left sidebar)
3. Ensure Tax Exemption Widget Cart is toggled on
4. Save your changes

The VAT widget will now appear in your UpCart drawer automatically.

Not using UpCart?

No problem! Our EU Tax Exemption app works with all standard Shopify themes and most popular cart drawer apps. UpCart support is an addition to our existing compatibility – not a replacement.

We also support:

• Standard Shopify theme cart drawers
• Kaching bundle cart drawer
• Most Dawn-based themes
• Custom cart page placement via app blocks

Why B2B checkout experience matters

A smooth B2B checkout experience can significantly impact your conversion rates. When business customers have to hunt for VAT exemption options or leave the cart flow, they’re more likely to abandon their purchase or contact support.

By integrating VAT validation directly into the cart drawer, you:

• Reduce friction: Customers don’t need to navigate away from the cart.
• Save time: Instant VAT validation means no waiting for manual review.
• Build trust: Professional B2B experience shows you understand their needs.
• Increase conversions: Fewer steps mean fewer abandoned carts.

Get started

Ready to offer your B2B customers a seamless tax exemption experience?

Install the EU Tax Exemption app on Shopify →

Have questions about setting up the app with UpCart? Contact our support team – we’re happy to help!

Frequently Asked Questions: EU Tax Exemption and UpCart Cart Drawer