John-Paul (JP) Marks started as First Permanent Secretary and Chief Executive of HM Revenue and Customs on 6 April 2025. 

Since January 2022, he had been Permanent Secretary to the Scottish Government, where he was responsible for the development, implementation and communication of government policies and Principal Accountable Officer, leading the Civil Service in the Scottish Government.

He was appointed Director General, Work and Health Services at the Department for Work and Pensions (DWP) in April 2019. Before this, he was a Director General for Operations on temporary promotion from March 2018.

His roles outside the Civil Service include Chair of the Civil Service Lifeboat Fund.

Tom joined HMRC in November ‘21 as Chief Technology Officer. With a varied experience between public and private sector Tom has moved within various parts of IT to be as well-rounded as possible.  A software developer by heart with a big focus on business value it was a natural move into architecture (both Solutions and Enterprise).

Chief Technology and Design Office (CT&DO) was formed in CDIO to provide strategic technology leadership for HMRC both in terms of what shape the technology takes and how HMRC go about delivering it. CT&DO has responsibility for high level technology design (Architecture and Service Design) and detailed Architectural Solution Design for all enterprise wide programmes and projects and policy impacting work.

Chris’ team are responsible for agreeing HMRC’s overall approach to intermediaries in the tax system, including our specific approach to those intermediaries that exploit their position to cause harm. He also leads our work to implement the intermediaries strategy in the tax software and umbrella company markets.

Chris previously led the programme implementing the Off-Payroll Working reforms that took effect in 2021. Prior to that he has led large operational compliance teams and been the Permanent Secretary’s Principal Private Secretary.

Kevin has served on the General Council for 15 years as Chairperson for the past 12 years and was appointed CEO over 2 years ago.

Kevin has worked in a number of senior capacities for several blue-chip companies across several sectors and is currently Business Development & Strategic Account Manager at Nest. With a passionate belief that BASDA has a crucial role to play in the business software industry, punching well above its weight, Kevin is committed to delivering incremental value to members including a more diverse and representative General Council.