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false invoice UK US noun [C]
► an invoice that does not relate to a real sale or payment and is used to get money dishonestly: »
They submitted false invoices for work that was never carried out.
false invoicing noun [U]
► the practice of producing false invoices in order to get money dishonestly: »
Police were called to the company's offices to look into allegations of false invoicing.
Financial and business terms. 2012.