Mills & Reeve logo in purple text with a purple tagline: Achieve more. Together.

Existing clients

Log in to your client extranet for free matter information, know-how and documents.

Client extranet portal

Staff

Mills & Reeve system for employees.

Staff Login

Jonathan Colclough

Partner

Jonathan Colclough in a dark suit and blue tie, in front of a pale background

What can I do for you

Jonathan is a private client/tax lawyer who advises UK and international clients on UK tax and estate planning to include investing in or coming to (or leaving) the UK and how to set up or refine structures and deal effectively with any cross-border issues. His clients include individuals, families, trusts, family offices, business owners, fiduciaries and financial institutions.

Supporting your ambitions

I can support you on:

  • Tax planning for individuals coming to or leaving the UK
  • Tax advice relating to non-UK trusts or other structures where the assets and/or beneficiaries are in the UK
  • Estate and succession planning for individuals and inter-generational families in the UK and cross-border
  • Advising on and setting up structures such as trusts, family investment companies and OEICs
  • Wills

What do others say

"Jonathan is extremely easy to work with - clear and responsive" (Chambers HNW, 2025)

"Jonathan Colclough is very experienced in cross-border tax and legal issues where there is a UK connection" (Chambers HNW, 2024)

What else should you know

Jonathan is a frequent speaker at STEP events outside the UK and is a member of the Capital Taxes Committee of the Law Society that consults with HMRC and others on developments in tax policy / legislation. Jonathan is ranked in Chambers High Net Worth guide for London and as a foreign expert in South Africa.

What our clients say about us

  • I think Mills & Reeve are a wonderful firm. The support they have provided to us in a really difficult area has been brilliant, collaborative and commercially minded. The team were absolutely wonderful and a joy to work with. Amazing advice and support and a real collaborative effort with us. I can't thank them enough for getting us through some really tough times and doing so with an amazing can-do attitude.
  • They are friendly, fast, always available and always on top of the game. I tend to judge my legal team against the other side's legal team and never doubt Mills & Reeve is the better of the two.
  • All interactions have been very clear. Responses to questions have always been very swift and unambiguous. Our company, and my family, have used various services in Mills & Reeve with the same level of satisfaction.
  • I value the fact that Mills & Reeve are recognised as a good place to work in the UK Best Companies survey. This aligns with the values of our business and means that Mills & Reeve can share what is required to achieve this status with our business.

As many clients will testify, too many lawyers deliver the required legal expertise but fail to deliver an outstanding client experience. Which is why we always listen to our clients and constantly ask ourselves what we can do to deliver the results you expect.

You expect a close and attentive working relationship, with a lawyer that is responsive and available when you need them. You also want clear, pragmatic and commercial advice tailored to your needs, and transparency and certainty on costs. We completely agree. That’s why every day, through our culture and approach we are committed to delivering the exceptional results and service our clients expect of us.

Related sectors and services

  • Family and children law
  • International law
  • Real estate
  • Commercial
  • Corporate law
  • Charities and social enterprise
  • Employment

Contact Jonathan