Chief executive of poverty charity founded in Bradford bids farewell after 25 years
The Archbishop of Canterbury, the charity's patron, described CAP founder John Kirkby as having a "passion for financial justice".
The organisation works with a network of churches.
It has a commitment to its services being available to all, regardless of religion or belief.
Over the past decade or so, the charity has helped more than 20,000 people clear their debts. As well as the UK, the organisation is also established in Australia, the United States and Canada.
Mr Kirkby had worked in the finance industry before founding CAP and was able to use his expertise to help people trapped in debt, negotiating with creditors and setting up budgeting systems.
The charity now offers debt counselling, money management, job clubs, life skills groups and support for people breaking habits which are controlling their lives.
Mr Kirkby will officially leave his role at the end of June.
It is expected both he and his wife Lizzie will take a sabbatical over the summer, as they consider possible future plans.
The Most Rev Justin Welby said: "John's religious conviction and passion for financial justice has been the driving force for an organisation which has grown exponentially since its inception and helped thousands of people free themselves from the prison of debt."
He added: "I would like to offer my prayers and warmest wishes to John as he steps down from his duties with Christians Against Poverty, which he founded 25 years ago this year. I hold both John and Lizzie in my prayers as they embark on their next calling and I remain honoured to be part of the organisation."
Mr Kirkby said: "I'm delighted to look at the organisation CAP is now and wholeheartedly know that I have played the part I was called here to do.