Most life insurance does not have a theoretical upper limit, but because of the tax benefits of relevant life insurance HMRC has set upper limits on the cover.   If you are aged 16-39 the maximum cover is 30x your total remuneration. If you are aged 40-49 the maximum cover is 20x your total remuneration. If you are aged 50+ the maximum cover is 15x your total remuneration.   HMRC defines total remuneration to include:   Basic salary Bonuses Dividends Other benefits-in-kind   Additional underwriting requirements will apply as cover increases, and these could be financial as well as medical.