How JMTI collects, uses and protects personal information, and the rights you have over it.
Last updated: September 2026
JMTI Tax Limited, trading as JMTI, is a specialist tax investigations and disputes practice. We are the controller of the personal information described here, which means we are responsible for it under UK data protection law.
We are registered with the Information Commissioner’s Office (ICO) under registration number ZC255750. Our director, John Moxon, is responsible for data protection matters.
JMTI Tax Limited
Company number 17332894, registered in England and Wales
Please contact us using the form on our website.
Depending on your matter, we may hold your contact and identity details, identification documents (which we must obtain under anti-money laundering law), financial and tax information, and the papers relating to your enquiry, dispute or appeal, along with our correspondence and notes.
Most of this comes directly from you. We may also receive information from HMRC, your other advisers, people connected with your matter, public sources such as Companies House, and the identity-verification providers we use to meet our legal obligations.
We use this information to advise and represent you, to meet our legal and regulatory obligations (including anti-money laundering checks and any reports the law requires us to make), to run and bill for our practice, and to deal with any complaint or claim. Our lawful bases are performance of our contract with you, compliance with our legal obligations, and our legitimate interests in acting for clients and running the firm. We do not sell your information or use it for marketing without your consent.
Our work sometimes involves information the law treats as particularly sensitive. For example, details of a person’s health where relevant to a “reasonable excuse” argument, or information about alleged dishonesty in an investigation, which counts as criminal offence data. We use such information only where it is necessary for your matter and our legal obligations, relying principally on the condition relating to legal claims under the UK GDPR and the Data Protection Act 2018.
We keep information only as long as we need it. Client files are generally kept for at least six years after a matter ends; anti-money laundering records for five years; and enquiries that do not lead to us acting for you for up to 12 months. When information is no longer needed, we delete or destroy it securely.
You have the right to ask for a copy of the information we hold about you, to have it corrected or deleted, to restrict or object to how we use it, and to withdraw consent where we rely on it. Some of these rights are limited by law. For example, we cannot delete records we are legally required to keep, and exemptions apply to privileged information and to tax matters.
To exercise any right, please get in touch using the form on our website. There is normally no charge and we will respond within one month, though we may need to confirm your identity first.
If you have any concerns about how we handle your information, please contact us first and we will do our best to put things right. You can also complain to the Information Commissioner’s Office at ico.org.uk/make-a-complaint or on 0303 123 1113.
We may update this notice from time to time; the date at the top shows when it was last changed.
← Return to the JMTI home page