We are trying to put a financial plan in place and have been looking into the possibility of private schooling for secondary school. Our kids are only 4 and 2 right now but I read recently that you should expect a 7-10% increase a year. The fees are currently £21k a year for secondary which would mean £300k for both kids. However with a 7% increase per year, this would be £600k for 2 kids by the time my children go! Is there anyone with children finishing school that can confirm whether this is true or not?