The case was brought by an Yvonne Hobbs against 'The Rt Hon Boris Johnson' and she gave her reason for the debt as: 'Committed repeated defamation.'
She used the Online Civil Money Claims service to state that the Prime Minister owed her £535.
Miss Hobbs, 59, of Leicestershire, is a Covid conspiracy theorist who has launched multiple claims against Mr Johnson and public institutions. She often sends copies of her complaints to the Queen, the BBC, the House of Commons and House of Lords. She has launched legal actions against Marks and Spencer, Royal Mail, Chancellor Rishi Sunak and numerous public companies.
Because letters about the alleged debt were apparently sent to 10 Downing Street but went unanswered, a default County Court Judgment was issued on October 26 last year without any defence being offered. Online records show the debt is still 'unsatisfied', meaning it has not yet been paid.
Under what used to be known as the small claims court procedure, anyone can make an official demand for another person or a business to pay them money owed. It costs as little as £25 to make an online court claim. Details of the amount owed will then be sent by post to the debtor. But if they do not respond to requests to pay up, the county court can issue a judgment ordering them to do so.
A government website explains: 'If you get a judgment, this means that the court has formally decided that you owe the money.'
A judgment also gives details of who to pay and how, and a deadline. If the judgment is also ignored, the claimant can try to force the debtor to attend court and provide evidence of their income.