960 Date for payment of income tax other than under self assessment

(1) From 1 January 2011 and subsequent years, income tax contained in an assessment for any year of assessment, other than an assessment under Self Assessment (see Part 41A), is payable on or before 30 September in that year. However, where such an assessment is made after 30 September in that year, the tax is due and payable not later than one month from the date on which the assessment is made.

For all years up to and including the year ended 31 December 2010 the due date for payment of income tax contained in an assessment, other than an assessment under Self Assessment (see Part 41A) is 31 October, for any year of assessment where the assessment is made prior to 31 October in that year. However, where such an assessment is made after 31 October in that year, the tax is due and payable not later than one month from the date on which the assessment is made.

(2)(a), (b) & (c) Where, for a year of assessment, any claim for exemption or for any allowance, credit, deduction, relief or repayment was granted on the basis of an incorrect account, declaration, information, particulars, return or statement or any other form of claim, and such incorrect account gives rise to a repayment of tax then interest applies from the date the repayment was made to the date on which it is recouped.

Income tax contained in an assessment or PAYE Balancing Statement (other than an assessment made under Part 41A) shall be due and payable as follows:

Where the benefit of a relief, credit, etc. is granted in ‘real time’, for example, in an individual’s PAYE certificate of tax credits, interest will apply-

• from 1 July in the year in which the certificate of tax credits issued if the certificate issued prior to that date, and
• from the subsequent 1 January where the certificate of tax credits issued after 1 July,

until the proceeds of the incorrect account are fully recouped.

Where the benefit of a relief, credit, etc. is granted after the end of the year of assessment, for example by way of a repayment through a PAYE Balancing Statement, interest will apply from the date the repayment was received by the individual until the proceeds of the incorrect account are fully recouped.

The rate of interest to be applied is the rate set out in section 1080(2)(c).

Relevant Date: Finance Act 2021