What does section 465A of ITTOIA 2005 do?

Section 465A requires that chargeable event gains from life insurance contracts, on which an individual is liable to tax and treated as having paid basic rate tax under section 530, are positioned as the highest part (top slice) of their total income. This means the gain sits above all other income when determining which tax bands apply.

How does top-slicing affect the tax rate applied to life insurance gains?

By placing the life insurance gain at the top of total income, it is more likely to fall within the higher rate or additional rate tax bands. Since basic rate tax is already treated as paid, additional tax liability only arises if the gain pushes the individual's income beyond the higher rate threshold, with credit given for basic rate tax already covered.

Does section 465A apply when calculating top slicing relief?

No. Section 465A expressly does not apply for the purposes of calculating top slicing relief under sections 535 to 537 of ITTOIA 2005. Top slicing relief uses its own separate methodology to determine the applicable rate of tax on gains that have accumulated over multiple years and are taxed in a single year.

What happens when multiple types of income must be treated as the highest part of total income?

Where more than one rule requires different types of income to be treated as the highest part of total income, section 1012 of ITA 2007 provides the ordering rules. This section resolves any conflict by setting out which type of income takes priority and determines the sequence in which competing top-slice incomes are stacked.

Income Tax (Trading and Other Income) Act 2005 section 465A

Amounts for which individuals liable to be treated as highest part of total income

Section 465A ensures that gains from life insurance contracts and similar policies on which an individual is liable to tax are treated as the top slice of their total income for tax purposes.

Where an individual is liable to tax on a life insurance gain and is treated as having already paid basic rate tax on it, the gain is placed at the top of their total income
This top-slicing position means the gain is more likely to fall into higher or additional rate tax bands, with credit given for the basic rate tax already treated as paid
The rule does not apply when calculating top slicing relief under sections 535 to 537, which have their own method for working out the tax due on such gains
Where more than one type of income is required to be treated as the highest part of total income, section 1012 of ITA 2007 sets out how these competing rules interact with each other

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