Bookkeeping for a VAT refund

[essayer]

OH's business recently hit the VAT threshold and registered, and successfully claimed an amount of VAT against purchases made earlier in the FY and for earlier years

So now we have a sum of money in the account, but I'm not sure how to manage the bookkeeping for it.

Obviously we have a number of invoices/payments entered in this year before registration - which were originally entered without VAT, do I need to go back and adjust these to add in the tax?

What about the sums against prior years?

Normally I just rely on the bookkeeping package's built in VAT handling (we use Xero) so going 'off-piste' concerns me a bit

[essayer]

R1 Indy said:

I May be wrong here, but I did not think you were allowed to claim the Vat back on purchases made before becoming Vat registered??

Prior 6 months for services and 4 years for goods -
http://www.hmrc.gov.uk/vat/start/register/purchase...

[essayer]

Most of the company's sales are zero rated anyway.

[essayer]

Yes, that caused me some concern for a while, goods exported outside EU so definitely zero rated, but many rules and regs surrounding it we need to comply with (VAT notice 703 etc).