The Mail on Sunday reports that the royal couple have hired a 22-year-old nanny, who is "believed to be European". As the paper points out, the Royal Family usually prefer matronly British nannies.
The new nanny will be based at Kate and William's apartment in Kensington Palace, which was extensively renovated in 2013.
Prince William's former nanny, Jessie Webb, had been helping raise seven-month-old Prince George on a part-time basis. But at 71, she was thought be reluctant to travel for a month on their tour.
Although Mrs Webb came to the end of her contract with the couple at Christmas she has continued helping out while they have searched for a new nanny. Kate's mother, Carole Middleton, has also been a very hands-on grandmother, helping look after Prince George.
A Kensington Palace spokesperson said: "We will be confirming these details in due course."
Although Kate and Wills were determined to be 'hands-on' parents, they are both due to increase their royal duties this year starting with their hectic schedule in New Zealand and Australia. In the first weeks of Prince George's life, Prince William talked of changing nappies and his son's powerful lungs.
Prince William is currently studying agricultural management at Cambridge University, after his decision to leave the RAF, while the Duchess has been on maternity leave with Prince George, bar a handful of royal engagements.