The 2021 Family Law Index is out now Find out more


Frank Hirth


Tax & Trust Accountants

Tax & Trust Advisers


London, United Kingdom

Advice type

Cross-border tax

Tax planning

US-UK tax

Client types

Financial professionals


Geographical focus

Saudi Arabia

United Arab Emirates

Sector focus


Business and Consumer Services


Michael Lewis


Michael Lewis, the personable director at Frank Hirth, tells Spear’s that the firm is ‘always looking to be more than just pure tax advisers – we want to be their trusted adviser.’

The business model is a win-win situation, as both Lewis and his HNW clients emerge satisfied from a conscientious, long-lasting relationship. ‘We have complementary annual meetings with clients, which actually lead to more work,’ he explains. ‘At times, it leads to us introducing them to a trusted global network of advisers, too.’

Specialised in advising clients within the ‘private markets area’, which includes businesses with a high degree of private ownership – including private equity executives, owner managers, entrepreneurs – Lewis also has numerous clients from the world of investment banking.

A UK-chartered tax adviser who is licensed to practise before the Internal Revenue Service in the US as an enrolled agent, many of those who approach Lewis have a US-nexus. His other specialisms include US-UK interaction on personal income and capital taxes, US social security taxes, as well as advice on US estate tax and UK inheritance taxation. He has a keen interest in the UK carried interest rules and in UK/US dual qualified charitable planning.

Lewis has recently seen a significant increase in tax uncertainty, which also means that business has been good. ‘There is so much work out there for us to advise upon and add value to,’ he says of the growing field of US-UK tax. ‘Our only limitations are time and staff.’

In recent years, Brexit has created some concerns over the attractiveness of the UK to global HNWs, and Lewis reveals that many clients did confide in him regarding their fears as to the nation’s stability as a jurisdiction. ‘It’s one of the few things that the UK has sold itself on,’ he says, ‘Fortunately, Brexit did not lead to a mass exodus – with clients willing to wait and see what the future holds. For our business it is likely that Brexit will create new opportunities, especially if a free trade agreement can be reached with the US.’

Lewis is rated by peers as a safe pair of hands, and has the charm and knowledge to allay UHNW fears during times of turbulence. He has over 23 years of experience in this field, and has spent time working with a Big Four firm. He’s learnt an invaluable lesson since pursuing a career in the private client landscape. ‘Service is about actually understanding what motivates a client and what they truly want to achieve,’ he says.

Rank: Recommended

Recommended 2020, Tax & Trust Accountants


1st Floor, 236 Gray's Inn Road, London, WC1X 8HB, United Kingdom




Share on