John Cassidy
Partner, Head of Tax Disputes and Investigations
London
I am Head of the Tax Disputes and Investigations team at Crowe UK with over 35 years' experience in tax.
I regularly write and lecture on tax topics. I have written chapters on tax investigations in technical books as well as numerous articles for the professional, national and local press. I also lecture at tax conferences in the UK and overseas on investigations, disclosures, HMRC's powers and taxpayer rights.
What I Do
- HMRC tax investigations, statutory enquiries, technical dispute resolution and other HMRC challenges under Self-Assessment
- COP9 fraud investigations under the Contractual Disclosure Facility
- COP8 investigations involving complex matters or large amounts of tax
- Voluntary disclosures, including Worldwide Disclosure Facility disclosures, nudge letters and the Let Property Campaign
- Discovery assessments, penalties and appeals against HMRC decisions
- Representations to HMRC and the tax tribunal, including settlement negotiation and penalty mitigation
- Tax avoidance, residence and domicile disputes
My Clients
- High net worth individuals
- Directors and shareholders
- Companies, LLPs and partnerships
- Trustees of UK and offshore trusts
- Taxpayers with overseas assets or structures
- Professional advisers
