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Taxation: Self-assessment

HM Treasury written question – answered on 23rd November 2016.

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Photo of Stephen Timms Stephen Timms Labour, East Ham

To ask Mr Chancellor of the Exchequer, how many P800 adjustments were issued to individual taxpayers to correct for an over or under payment of income tax in (a) 2013-14, (b) 2014-15 and (c) 2015-16.

Photo of Jane Ellison Jane Ellison The Financial Secretary to the Treasury

At the end of every tax year HM Revenue and Customs (HMRC) electronically reviews all individual PAYE records to see whether or not the correct amount of tax and National Insurance Contributions for the year has been paid. Where there is an under or overpayment, HMRC notifies the individual through issuing form P800. The table below shows the number of accounts reviewed and the number of P800 forms issued for 2013-14 and 2014-15. Final figures for 2015-16 are not yet available.

Accounts reviewed

P800 forms issued


45.86 million

5.43 million


45.81 million

5.04 million

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