A winding up petition is a legal document that can be served by a company’s creditors when they are owed money by the company. If the debt amounts to £750 or more, then a creditor has the right to go to court and ask for a winding up petition to be issued, although courts view this remedy as something that should be reserved for when a company is genuinely believed to be insolvent, and not simply used as a means of debt collection.