What is top slicing relief on life insurance and investment bond gains?

Full answer

Top slicing relief stops a single large gain from being unfairly taxed when it lands in one tax year. Chargeable event gains arise mainly on the full or partial surrender, maturity or death payout of life insurance policies and investment bonds. The whole gain is added to your income in the year it arises, which can drag you from basic into higher rate, or even into the additional rate band above GBP 125,140. The relief recognises that the gain actually built up over many years. In essence the gain is divided by the number of complete years the policy ran to give an annual 'slice'. Tax is then assessed on the basis of that slice rather than the whole gain, and relief broadly equals the difference between the tax on the full gain at your marginal rates and the tax that would arise if only the sliced amount tipped you into higher bands. The result is multiplied back up across the years. Who it affects: holders of onshore and offshore investment bonds, particularly those whose normal income sits just below the GBP 50,270 higher-rate threshold and who cash in a bond. UK onshore bonds carry a 20% notional tax credit reflecting tax already paid within the fund; offshore bonds do not, so the calculation and amounts differ. Worked outline: a basic-rate taxpayer with a GBP 40,000 gain on a bond held 10 years has a GBP 4,000 slice. If the slice keeps them within the basic-rate band, relief can reduce or remove the higher-rate charge that the full GBP 40,000 would otherwise trigger. The full calculation is intricate and depends on your other income, Personal Allowance position and the bond type. Report the gain via Self Assessment, where HMRC computes the relief. Model your underlying income tax position with an income tax calculator.

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