RESOURCE CENTRE Resources This section is a comprehensive resource for our clients, containing tax calculators, tax rates and deadlines, essential business factsheets, the latest news and more. Online calculatorsIncludes calculators for mortgages, loans, APR, payslips, VAT, stamp duty, company car and fuel benefits.Tax calendarThe online tax calendar shows the key tax deadlines.Tax rates & allowancesThe latest tax rates and allowances.Downloadable formsSome useful forms from HMRC and Companies House.