Self-assessment
CGT is otherwise collected as part of the self-assessment system, and is due in one amount on 31 January following the tax year. Therefore, a CGT liability for the tax year 2020–21 will be payable on 31 January 2022.
Self-assessment payments on account are not required in respect of CGT.
A residential property gain is still included in the self-assessment computation, with the payment on account deducted from the total CGT liability.
EXAMPLE 6
For the tax year 2020–21, Adam has a salary of £44,000. During the year, he made net personal pension contributions of £4,400. On 15 June 2020, Adam sold an antique table and this resulted in a chargeable gain of £21,300.
For the tax year 2020–21, Bee has a trading profit of £60,000. On 20 August 2020, she sold an antique vase and this resulted in a chargeable gain of £20,100.
For the tax year 2020–21, Chester has a salary of £43,500. On 25 October 2020, he sold a residential property and this resulted in a chargeable gain of £47,300.
Adam
Adam’s taxable income is £31,500 (44,000 less the personal allowance of 12,500). His basic rate tax band is extended to £43,000 (37,500 + 5,500 (4,400 x 100/80)), of which £11,500 (43,000 – 31,500) is unused.
Adam’s taxable gain of £9,000 (21,300 less the annual exempt amount of 12,300) is fully within the unused basic rate tax band, so his CGT liability for 2020–21 is therefore £900 (9,000 at 10%). This will be due on 31 January 2022.
Bee
Bee’s taxable income is £47,500 (60,000 – 12,500), so all of her basic rate tax band has been used. The CGT liability for 2020–21 on her taxable gain of £7,800 (20,100 – 12,300) is therefore £1,560 (7,800 at 20%). This will be due on 31 January 2022.
Chester
Chester’s taxable income is £31,000 (43,500 – 12,500), so £6,500 (37,500 – 31,000) of his basic rate tax band is unused. The CGT liability on Chester’s taxable gain of £35,000 (47,300 – 12,300) is therefore: