The charity is holding meetings this week in Liverpool and London to discuss the situation with its employees. At present, 277 of its 430-strong workforce are contributing to the pension scheme.
A CAB spokesman said that if a decision were made to abandon the final salary scheme, the charity would probably revert to a so-called money-purchase or stakeholder pension model. That would mean that instead of being guaranteed a proportion of their final salaries, which is protected from changes in the market, pension holders would invest in a fund that would be subject to fluctuation.
However, the spokesman emphasised that there had been no suggestion that the charity would reduce the amount that it is paying into the scheme.
Simon Bottery, director of communications at the CAB, said: “We remain committed to providing an effective pension scheme for staff and will be consulting with staff on the options for this.”