Like William, Kate identifies her job as a "Princess of the United Kingdom," despite not going by "princess" as her title. Also like William, most of her time is spent attending to royal duties, like going on official tours and representing the queen at various events. She is also the patron of several charities, including East Anglia's Children's Hospices and the National Portrait Gallery, among others. While Kate's official expenses are taken care of by the British government, some of her personal expenses are also covered by Prince Charles and the income he receives from the Duchy of Cornwall.
Of course, Kate wasn't born a royal, so that means that she's had to hold down "regular people" jobs in the past. After graduating with a degree in art history from the University of St. Andrews, the duchess famously struggled to find a day job that would allow her the freedom to see the always-on-the-move William and also help her support herself without her parents' help. Like her sister, Pippa, Kate worked part-time for her parents' online company, Party Pieces. In 2006, she took on a job as an accessories buyer for Jigsaw but left the job in 2007. Before she met William, Kate worked as a deckhand for a few months during her gap year.