RE: Off Topic. Weekend6 Mar 2021 11:39
You do have a CG tax free allowance £12,300 for 2020/21.
Within 30 days, they are matched and do not form part of your S104 holding.
Any gain / loss on the buyback will be insignificant unless there is a spike.
Example
Mr Schneider owned 10,000 shares in Mesopotamia plc.
500 were purchased on 11 September 2019. The remaining 9,500 are held in the Section 104 holding. Mr Schneider sells 4,000 shares on 30 August 2019. The disposals are identified as:
500 against the shares purchased on 11 September 2019 under the ‘bed and breakfasting’ rule
3,500 against the shares in the Section 104 holding
Suppose Mr Schneider received £6,000 for the 4,000 shares he sold and paid £850 for the 500 he had bought a few days later. Because he bought additional shares within 30 days of making the disposal, 500 of the shares sold are not matched with shares in the holding. They are identified with the 500 shares bought on 11 September 2019.
The gain or loss on those shares is calculated as follows:
Amount
Disposal proceeds (apportioned 500 ÷ 4,000 × £6,000) £750
Allowable cost £850
Loss £100