449. Total income.

For the purposes of calculating total income (at step 1 of the prescribed steps)1, income from which a deduction in respect of income tax is to be made (or treated as made) at the basic rate2 in force for a tax year3 is treated as income of that tax year4.

These rules apply even if all or part of the income, or the dividend or other distribution, accrued or will accrue in a different tax year