Principal Consultants

Cornerstone Tax 2020 Ltd is a  specialist tax boutique dedicated to providing advice to property buyers on their various tax liabilities. Over the course of the last decade and a half, we have refined our focus to concentrate almost exclusively as a firm on Stamp Duty Land Tax, one of the least understood and most complex taxes on the modern UK statue book.

In that time, we’ve seen many alterations to the Stamp Duty legislation, from the introduction of Multiple Dwellings Relief in 2011, the 3% ‘surcharge’ on second properties in 2016, the switch to a ‘slice’ system of assessment in 2017 and the recent introduction of a 2% surcharge on foreign investors buying UK property. Successive governments have sought to wield SDLT changes like this as a way of encouraging the market to behave in ways they desire, but more often than not any benefits are minimal and meanwhile another layer of complications have been added.

In 2016 when the 3% surcharge was introduced, the raft of issues which it caused and the flood of enquiries we experienced from both homebuyers and their legal and financial advisers caused us to take a deeper look at the system and realise that the issues at the heart of it were even deeper than we had previously appreciated. Since then, we have focused on helping out property lawyers and other property professionals as much as clients, seeking to educate the industry on a tax that’s badly misunderstood by many, and help ensure that clients pay the tax they owe, and not a penny more.

This complexity has led to many Overpayments of Stamp Duty and the fear of underpaying has prevented many people from looking for them, so a confusing situation made worse by a climate of fear created amongst taxpayers and professionals by HMRC “anti avoidance” rhetoric and powers. Ultimately its about getting it right – neither too high or too low – after all its your money.

We like to call it Property Tax, Properly Done. Our team of dedicated professionals includes ATT Tax Technicians, ex barristers and solicitors, and financial advice specialists. Our firm has grown from a small boutique to a comprehensive specialist tax advice company with multiple locations and a growing staff.

Stevie Gill

Tax consultant/tax services Director

Tax consultant/tax services Director

Chris Ward

Professional Connections Director

Chris has a long career in finance and tax, he started and built a Top 100 IFA business advising HNW individuals and Corporate Clients. After he sold the business, he joined Cornerstone 7 years ago to build and develop the business in London which he has successfully achieved.

James Langton

Business Development Manager

James joined Cornerstone and SDLT Refunds in 2020 as head of marketing for Cornerstone and SDLT Refunds. James has over 10 years of Digital Marketing experience, and was previously Director for No Quarter, working with cycling brands and the music industry to produce custom paintwork, cycle care products and sports merchandise. His former clients include Universal Music Group, The Rolling Stones and Guns 'n' Roses.

Sam Warren

Client Services Manager

Sam joined Cornerstone in 2016 as a tax assistant and has since progressed to Client Services Manager. Sam oversees the day-to-day running of the New Business Team and has a vast range of knowledge and experience in handling a variety of SDLT matters and clients. Sam represents Cornerstone Tax and SDLT Refunds.

Sam Child

Tax Analyst

Sam has been a Tax Analyst here at Cornerstone and SDLT Refunds since 2020.

Amy Mason

PA/HR/Health & Safety

Amy joined the team in January 2021 as HR Manager and PA to the Board. Amy obtained a CIPP (Certificate in Personnel Practice) in 2005, and handles all HR matters for Cornerstone Tax and SDLT Refunds as well as assisting the Board.

Dave Collier

Regional ambassador - North

Dave Collier is the regional ambassador in the north of England.

Huzaifah Malik

Tax Assistant

Hazaifah deals with all property tax matters here at Cornerstone



Marco joined Cornerstone since 2008 as a Chartered Accountant and has specialised in tax for 35+ years. Marco is an SDLT expert and now primarily dealing with the more complex transactions and the wider tax advice pertaining to estate planning (CGT/IHT/FIC) as well as SDLT.

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