Crisis is a national charity for people experiencing homelessness.
The lender raised the funds by donating £29.06 for every application it received in December.
Vida has pledged to raise at least £150,000 over three years for Crisis, and in October it held an alternative marathon which involved employees at all levels.
The event consisted of various activities, such as a 2.6-mile sky dive and mixed marathon relay, and a half marathon walk completed by chief executive Anth Mooney and his dog Walter.
Mooney said: “Christmas is a time for giving, and we’re thrilled to have raised over £20,000 in support of Crisis helping 650 homeless people. At Vida we believe no one should be forced into homelessness and we want to bring attention to such an important cause and make a difference.
“I know I speak for everyone at Vida when I say we are delighted to be partnered with Crisis to assist the fantastic work they do to change people’s lives for the better.”