Without wishing to sound facetious you would report the input and output tax (VAT) on a VAT return and you would report CIS on the CIS return (Not that I have any of those). They are very different things, CIS is the tax (usually at 20%) that a contractor will deduct from a sub-contractor and is similar to PAYE, A contractor has to make a return summarising all the CIS deducted and then makes a monthly payment of the deducted tax to HMRC.
Beat me to it Rob, I was more concerned with the dangerously incorrect guessing at the UK VAT system advice post than the question one first.
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Shaun
Responses are not meant as a substitute for professional advice. Answers are intended as outline only the advice of a qualified professional with access to all relevant information should be sought before acting on any response given.
yes just noticed that one, just looked at website attached and they seem to be angling for business with accountants...very cheap but very expensive when they do everything wrong!