Prince William will owe the taxpayer £400,000 if he quits early as a helicopter pilot to take up Royal duties, the Sunday People has revealed .
But RAF chiefs have decided to write off the bill in the interests of the nation.
Search-and-rescue pilots like William have to agree to stay in service for six years if they are accepted for the £800,000 training course.
But the 30-year-old prince is set to leave when his current tour of duty at RAF Valley in Anglesey , North Wales, ends in September.
While sources have confirmed that a request for the outstanding £400,000 would be met, the RAF has decided not to make it.
A senior RAF source said: “The RAF view is that the education of the future King in military matters is hugely important to the nation.
“Prince William’s training has been money well-spent whatever the length of service.”
William, who is to become a dad when wife Kate, 30, gives birth in July, is believed to have decided after much personal anguish to move to full-time royal duties – although he may stay in RAF uniform for three years.
A Ministry of Defence source admitted it was rare for a pilot to leave early but demands for a payback depended on circumstances.
He said: “If it is somebody using the RAF training to go into a commercial flying career that is very different to somebody transferring to other public duties.”