Higginson was previously chief operating officer at broker network Sesame Bankhall Group before quitting in January 2014.
Before that he was chief operating officer of the Intrinsic and Openwork networks.
Lloyd Cochrane, RBS director of mortgages and protection commented: “We are delighted to have George joining the team.
“His wealth of knowledge of the broker market in particular, will be invaluable in helping us achieve our ambitious plans to make home buying and ownership one of the signature experiences that RBS/NatWest is recognised for as being the market leader.”
He has yet to be given an official job title at RBS/NatWest.
Ian McLaughlin, managing director of specialist banking at RBS, said: “We are really pleased to have been able to bring George's expertise to RBS/NatWest.
“He’ll play a key part in us achieving our ambitions to be the number one choice for brokers and customers in the key need areas of buying a home and financial advice.”