Here are some likns you may find useful

 

  • HM Revenue & Customs http://www.hmrc.gov.uk
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  • Business Link http://www.businesslink.co.uk
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  • VAT Calculator http://www.vatcalculator.org.uk
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  • Sage http://www.vatcalculator.org.uk
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  • Direct Gov http://www.direct.gov.uk/en/index.htm