Thanks for getting in touch. We have recently made a change to our platform's tax settings that allows you to include or exclude taxes based on your customer's location, meaning customers who are not due to pay VAT will see the VAT-exclusive prices at checkout. I would recommend checking out our documentation on this feature to learn how it works and how to enable it, which you can find here.
The end result here is that UK-based customers would see and pay the VAT-inclusive prices at checkout, whereas customers in countries where you do not charge VAT, such as Germany, pay the tax-exclusive price at checkout. I hope this explains things but please let me know if you have more questions.
Victor | Shopify Social Care