No evidence of tax paid for previous years

Pipsway

Unfortunately my partner did not submit his self assessemnts for a number of years and has recently completed them for previous years (2006 to 2011), however it has come to light that there are earlier years when he did not submit his self assessment form. Although he was self employed tax was deducted from all his previous earnings (prior to and since the period HMRC are saying he has paid no tax) through the construction industry scheme. Unforutnately this was a number of years ago and my partner does not have his SC60s or any other evidence of his earning and tax deductions for this period. HMRC have made a calculation that he did not pay any tax for the period although they should have received quarterly returns from the main contractor which I assume would show the deductions made against his UTR. Can we request this information directly from the tax office?