How to Check if a Company is VAT Registered

Checking whether a company is VAT registered takes minutes through HMRC's free online checker. It's a small habit worth building, since it protects you from fraud, keeps your own VAT records accurate, and avoids reclaiming VAT you're not actually entitled to.

Key Takeaways

• The VAT registration threshold is currently £90,000, and being registered signals a degree of scale and legitimacy to customers and partners.
• HMRC's VAT number checker confirms whether a UK VAT number is valid, quickly and for free.
• For EU or Northern Ireland businesses, the VIES tool checks VAT numbers across borders.
• If you can't find a VAT number online, ask the company directly or check their invoices and website.
• VAT numbers can stop being valid if a business deregisters, so it's worth checking again for any long-standing partnerships, not just new ones.

Why Does Verifying a Company's VAT Number Actually Matter?

Staying compliant. If HMRC ever reviews your VAT handling, being able to show you checked your suppliers' or partners' VAT numbers helps avoid liability for their incorrect filings.

Avoiding fraud. Fake VAT numbers are a genuine tactic used to pose as a legitimate business. A quick check protects you from falling for one.

Getting your VAT reclaims right. Verifying a number before reclaiming VAT on an expense keeps your own tax records accurate and reduces the risk of a dispute with HMRC later.

How Do I Check a UK Company's VAT Number?

Use HMRC's VAT number checker, a free, official tool.

1. Go to the checker
2. Enter the VAT number you want to verify
3. Review the result to confirm whether it's valid and currently registered

It's regularly updated and the most reliable way to confirm a UK VAT number.

How Do I Check an EU or Northern Ireland Company's VAT Number?

Use the VIES (VAT Information Exchange System) tool, which checks VAT numbers across EU member states and Northern Ireland.

1. Go to the VIES website
2. Enter the VAT number you want to verify
3. Check the result to confirm validity

This is worth using for any cross-border trade, since it confirms a number is genuinely registered for that kind of transaction, not just active.

What if I Don't Have the Company's VAT Number to Hand?

Ask the company directly, since any genuinely VAT-registered business should be able to share it quickly, it's required on their VAT invoices. Failing that, check their invoices, receipts, or their website, which often lists it in the footer or a dedicated FAQ page.

What Should I Watch Out For?

Small errors in the number. A single mistyped digit can return a false result, so double-check what you've entered before assuming a number's invalid.

Unofficial checker tools. Stick to HMRC and VIES rather than third-party websites, which aren't guaranteed to be accurate or current.

Numbers that were once valid but no longer are. A business can deregister, making a previously valid VAT number invalid. It's worth re-checking numbers for long-standing partnerships occasionally, not just once at the start.

FAQs

How can I check if a UK company is VAT registered?

Use HMRC's VAT number checker. Enter the VAT number, and it confirms whether it's valid and currently in use.

What if I don't have the company's VAT number?

Ask them directly, or check their invoices, receipts, or website. A genuinely VAT-registered business should be able to provide it quickly.

Can I check EU or Northern Ireland VAT numbers the same way?

No, use the VIES tool instead, which is built specifically for cross-border VAT number verification.

What does it mean if the checker says a VAT number is invalid?

Double-check you've entered it correctly first. If it's still showing invalid, the business may have deregistered, so it's worth confirming directly with them.

Where do I usually find a company's VAT number?

On VAT invoices, receipts, order confirmations, or the business's own website, often in the footer.

Can a company legally trade without being VAT registered?

Yes, if their taxable turnover is below the £90,000 threshold. They shouldn't charge VAT on sales until they've completed registration, though.

This article is for general information only and does not constitute tax advice. VAT thresholds and verification tools can change, so it's worth checking current guidance on GOV.UK.