More nannies are being urged by private accountants to join a scheme designed to make them more affordable to parents. Nannies are the only form of unregistered childcare in Britain and parents employing them are ineligible for childcare tax credits unless a nanny is already a registered childminder. Two companies offering an alternative to the pay-as-you- earn (PAYE) arrangement are chartered accountants Nyman Lynden and the Inkberry Company, a recruitment agency. Both involve nannies setting themselves up as limited companies,...