Have you used the Vat transfer wizard to clear down the input / output tax to 2202, this will post the Offset you're looking for. I'd then use the Payment icon to post to the cash book and clear 2202.
hth
-- Edited by ADAS on Tuesday 15th of February 2011 02:23:11 PM
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Tony
Responses are intended as outline only. Formal advice should be sort from your Institutes Technical Department or a suitably qualified Accountant.