A source told the newspaper: “They are choosing to spend time together as a family before the children go back to school.”
The prince, a future head of the Church of England, told his father the King of his plans for the remainder of the Easter holidays with Prince George, Princess Charlotte and Prince Louis, the Mirror said.
The Waleses missed the annual service last year after Kate, who is now in remission, was diagnosed with cancer.
Charles and Camilla will attend the traditional Easter Mattins service in the 15th century chapel in Berkshire.
William and Kate have a country home, Anmer Hall, on the Sandringham estate.
In a video last year revealing the princess had completed her chemotherapy, the Wales family were shown enjoying the Norfolk countryside, walking through woods and playing on the beach.
Kate has told how she has a “spiritual” connection with nature which gives her peace in a busy world, and how the natural world was her family’s “sanctuary” over the past year.
Charles’s Easter Sunday appearance last year was his first major public one following his own cancer diagnosis.
He was applauded by the crowds as he greeted well-wishers who urged him to “keep going strong”.