| 1 | Tax year basis – apportioning profits to calculate taxable profits arising in tax year. See BIM81201. |
| 2 | Tax year basis – apportioning profits and losses to calculate taxable profit/loss arising in tax year. See BIM81201. |
| 3 | Late accounting date rules – calculating profits where accounting date falls between 31 March and 4 April. See BIM81210. |
| 4 | Late accounting date rules – calculating profits of trade commencing between 1 and 5 April. See BIM81210. |
| 5 | Transitional rules – trade commencing in transition year (2023-24) with late accounting date. See BIM81240. |
| 6 | Transitional rules – trade commencing in transition year (2023-24) with late accounting date. See BIM81240. |
| 7 | Transitional rules – continuing trade, basis period for trade with 31 December accounting date. See BIM81260. |
| 8 | Transitional rules – continuing trade, basis period for trade with late accounting date. See BIM81260. |
| 9 | Transitional rules – continuing trade, basis period for trade with late accounting date (and change of accounting date in earlier year). See BIM81260. |
| 10 | Transitional rules – calculating profits, no transition part of basis period. See BIM81280. |
| 11 | Transitional rules – calculating profits, no transition part of basis period and late accounting date. See BIM81280. |
| 12 | Transitional rules – calculating profits with transition part, profit-making trade, no overlap profits. See BIM81290. |
| 13 | Transitional rules – calculating profits with transition part, profit-making trade with overlap profits. See BIM81290. |
| 14 | Transitional rules – calculating profits with loss in transition part and overlap profits. See BIM81290. |
| 15 | Transitional rules – calculating profits with transition part, loss in standard part and overlap profits. See BIM81290. |
| 16 | Transitional rules – calculating profits with loss in transition part, loss in standard part and overlap profits. See BIM81290. |
| 17 | Transitional rules – calculating loss – loss increased by overlap relief. See BIM81300. |
| 18 | Transitional rules – calculating loss – profit turned into loss by overlap relief. See BIM81300. |
| 19 | Spreading transition profits – equal amount of profit taxed in each of the five tax years for continuing trades. See BIM81310. |
| 20 | Spreading transition profits – amount of profit taxed affected by trade ceasing. See BIM81310. |
| 21 | Spreading transition profits – election made to accelerate amount of profits taxed in one out of the five tax years. See BIM81310. |
| 22 | Spreading transition profits – election made to accelerate amount of profits taxed in two of the five tax years. See BIM81310. |
| 23 | Calculating tax liability of transition profits. See BIM81320. |
| 24 | Calculating tax liability of transition profits where notional net income is above £100,000. See BIM81320. |
| 25 | Calculating taxable profits of partner’s continuing notional business for 2023-24. See BIM81340. |