Here are a few links that may be useful:
Companies House Copies of company or LLP accounts can be downloaded from Companies House for 1 each
HM Revenue & Customs This is the home page of HM Revenue & Customs
VAT This gives access to all of the VAT notices issued by HM Revenue & Customs
Charity commission Copies of accounts, or financial information for smaller charities, can be downloaded for free
Accounting software The Sage Instant Account range starts from around 115 and is sufficient for most small businesses.

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