Why are you asking for my TIN / NIN now? You didn’t ask before.
When you first signed up, the rules didn’t require us to collect this information. However, new rules in the UK International Tax Compliance Regulations 2025 and EU Council Directive (EU) 2023/2226 now require all financial institutions to collect and verify customers’ tax residency details.
To stay compliant with the law and keep your account active, we now need to update this information.