Automatic VAT verification and multi-country tax compliance
No more manual VAT number checks and the risk of incorrect rates. The system automatically validates customer VAT numbers via API, applies the correct rates based on service type and location, and re-verifies data validity every 3 months. A multi-country rules engine eliminates the risk of penalties for tax compliance errors.

Manual VAT verification and the risk of tax compliance errors

A company operating across several European markets had to manually verify each customer's tax status for every order. Checking a VAT number required going to the VIES website, entering the data and saving the result. With 500+ customers in the database — many from different countries — employees often skipped this step or relied on outdated data. A customer's VAT number could expire or be invalidated, and the company would not know.
Selecting the correct VAT rate required taking several variables into account at the same time: service type, place of supply (country of establishment vs. customer country), customer type (company vs. private individual), the customer's VAT registration status, and any tax exemptions. With 15+ rule combinations and differences between countries, employees had to refer to lookup tables or consult an accountant. Errors occurred in 5-8% of invoices — each one required a correction, additional correspondence and exposed the company to sanctions.
Managing VAT exemption documents relied on folders on a drive containing scanned files. There was no automatic tracking of expiry dates — when an exemption expired, nobody remembered until an inspection. The lack of a central verification register meant that in the event of an audit, the company could not quickly prove that VAT numbers had been validated. Any regulatory change in one of the countries required manual table updates and team retraining.
Multi-country VAT rules engine with automatic validation and re-verification

The system automatically validates a customer's VAT number when it is added to the database — connecting to the European VIES system in real time. The verification result is saved with the date and timestamp, creating an auditable register. Every 90 days, the system automatically re-verifies VAT numbers for all active customers and generates alerts for operators in the event of status changes or failed verifications.
The tax rules engine automatically determines the correct VAT rate based on five variables: service type, country of supply, customer country, customer type and exemption status. The system blocks prohibited combinations with a clear message — for example, when a private individual from another country attempts to order a service subject to reverse charge. Rules are configurable per country and can be updated without code changes, making it easier to respond to legislative changes.
The VAT exemption documents module centralises the management of certificates and supporting documents. Each document has an expiry date — the system automatically warns 30 days before expiry and blocks the application of the exemption after the expiry date. The compliance panel shows the verification status of all customers: verified, pending, expired, requiring attention. One-click audit reports document the full VAT verification history for each customer and every transaction.
Before and after implementation
Concrete automation results
Want to achieve similar results?
Book a free consultationManually checking whether a customer has a valid VAT number and which rate applies to a given service type in a given country — it was a lottery. One mistake meant an invoice correction plus explanations to the tax office. Now the system verifies VAT automatically, blocks prohibited combinations and reminds us about re-verification. I sleep soundly now.
Service company operating in 3 EU countries, 500+ customers
Our solutions
Explore the details
Ready to speed up your business?
Schedule a free consultation with our expert and find out in less than 30 minutes:
What do customers say about us?
What I found most impressive was their unparalleled commitment to customer satisfaction.
CEO, SMartDe eG
Their discovery knowledge helped us find the best solution for our challenges.
Marketing Director, ESALIENS
We strongly recommend them for collaboration on any IT challenges.
Head of Delivery, itCraft
We're thrilled with the results of our collaboration.
Co-Founder & CEO, Swave
Their overall spirit of solving all issues is outstanding.
Founder, Floud
They not only perform required tasks but also present comprehensive knowledge about our business.
CEO, beautybox


















