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Thanks for your question
HMRC can provide information from the last 4 years but this only takes you back to 2012/2013 - and you require back to 2006 - so the only other possibility is from whomever employed you for those years, although I should advsie that employers are only obliged to retain this information for 4 years also, but this would be the quicker route as HMRC take up to eight weeks to respond to requests for Pay information and you advsie you only have a limited time.
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