Payment of tax
E1.250 Payment of tax due under self assessment—introduction
For the latest New Development, see ND.1938.
Due date for payment
Under self assessment, income tax, capital gains tax plus any Class 2 and Class 4 national insurance due in relation to the tax year is due by 31 January after the end of the tax year1. However, where the taxpayer notified their chargeability to tax by 5 October after the end of the tax year, but HMRC does not issue the notice to file the return until after 31 October, the due date is three months from the date on which the notice to file (see E1.210) is issued2.
To preserve a flow of tax to HMRC, where the income tax and any Class 4 national insurance contributions due for the tax year (ie the liability less tax deducted at source) is sufficiently large, payments on account may be payable. If payments on account are due, two equal payments are due by 31 January before the end of the tax year and by 31 July after the end of the tax year. For details, see E1.251.3
This means that some self assessment taxpayers must make two payments of income tax on 31 January:
• a balancing amount for the tax year ended on the previous 5 April, being the income tax and capital gains tax liability less tax deducted at source and any payments on account made in relation to that tax year, plus
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