The FSA says Wilson, who was appointed as a director in April 2002, has resigned for personal reasons. As well as her TCF remit, Wilson is also a sector leader across the FSA for insurance. She was previously director of the retail firms division and director responsible for the introduction of conduct of business regulation in the mortgage and general insurance sectors.
The FSA says it is looking for candidates to take over the role.
A spokeswoman could not confirm if the regulator is advertising the position externally or if it is seeking to fill the position internally. She says: “Sarah has given us a lot of notice so we have time to find a replacement. She has made a personal decision to leave the FSA. She is not leaving to move on to anything specific initially because it is unclear how long it will take to find a replacement.”