Tax Investigations HM Revenue & Customs regularly carry out investigations. We are here to help should you face an enquiry. We have paired with Croner Taxwise to offer a fees protection service which will cover fees incurred should you have an investigation. Included as part of this service you will have access to expert advice on employment law, health and safety, HR, legal advice, tax and VAT. Contact us if you need further information about the scheme and the annual cost.