KPMG has changed the terms of its four-day a week flexible work offer in a bid to entice more of its 11,000 staff to sign on, the Financial Times reported.

Rather than dock staff a full day’s pay, the firm said in an email to staff that four-day workers would only lose 10 per cent of their existing pay. This was on condition that 75 per cent of the firm agreed to take part.

UK staff were last month asked to volunteer to work either a four-day week or take extended unpaid leave for up to 12 weeks per year.

Just one-third of staff have so far agreed to cut their hours, but to be effective in reducing costs two-thirds would need to accept the offer.