Riches, previously technical director at the Chartered Institute of Taxation (CIOT), replaces Richard Mannion who retired after a career in taxation spanning 48 years.
Riches will be responsible for disseminating tax information across the firm and assisting partners to deliver advice and service to clients. She is based at the firm’s Moorgate office in London and will be the primary commentator on tax matters for the firm.
She led the CIOT technical team having joined in 2006.
“HMRC’s newly focused taxation strategy makes this a particularly significant time of change for the profession, and an exciting time for me to be joining Smith & Williamson, which I have long held in high professional regard for both the quality of its technical advice and its excellent client service,” she said.
Kevin Stopps, managing partner of tax and business services Smith & Williamson, said, “Tina brings extensive knowledge and experience at the cutting edge of the industry, including HMRC’s new technology and major IT developments, and we look forward to working with her to prepare for the changes ahead.”
In September, Smith & Williamson introduced new management structure with the appointment of a new leadership team. David Cobb and Kevin Stopps will took up the newly-created roles of co-chief executives and Andrew Sykes as chairman of the board.
The firm is the eighth largest accountancy group in the UK, employing 1,500 people across 12 offices, including 283 partners and directors.