Ian Beaumont, the lead partner at BDO in Leeds since 2006, is leaving to join Big Four firm in a move described as a real "coup" by KPMG.
Beaumont will move early next year following the completion of his commitments with BDO.
Chris Hearld, KPMG's office senior partner, said, "To attract a heavyweight business advisor of Ian's calibre is a genuine coup.
"His appointment demonstrates our commitment to this exciting part of the Yorkshire market and our determination to attract the best talent for the benefit of our clients."
Terry Jones, a senior tax partner who has been at BDO for 10 years, will take over from Beaumont as lead partner to BDO's 200-strong team with immediate effect. He was one of the founding member of the firm’s Leeds office.
Jones said, "Ian has helped BDO become a real force in the market and we wish him the very best of luck in the next step of his career. It's an exciting time for the firm and I'm very much looking forward to leading the team through our next phase of growth."
BDO completed its merger with rival PKF in the spring, as part of a wave of consolidation taking place in the mid-tier sector. The firm now has 20 partners at its Leeds and Sheffield offices.