Sick pay and income protection

Critical illness cover or income protection: a lump sum or an income

Both policies pay when you are alive but your finances are hit. Enter a lump sum, your outgoings and a monthly benefit to compare them in months.

Independent site, not an insurer, broker or government service: benefit claims are made only on GOV.UK.

A lump sum or a monthly income

Example, not your result yet· change a figure to see yours

The lump sum pays outgoings for

28.6 months

Income protection over the absence£36,000
Share of outgoings it covers71%
Lump sum minus income paid£24,000

Income protection pays after the deferred period and only while you cannot work; a lump sum pays once if the policy definition is met.

Income protection timeline

Critical illness cover pays a single tax-free lump sum if the insured person meets one of the definitions listed in the policy, whether or not they can still work. Income protection pays a monthly benefit only while they cannot work, after a deferred period, until they recover or the claim period ends. They answer different questions. A lump sum of £60,000 pays £2,100 of monthly outgoings for 28.6 months, or clears part of a mortgage at once. An income protection benefit of £1,500 a month over a two-year absence pays £36,000, and keeps paying for as long as the claim lasts within the policy term. The lump sum is paid once, so it suits a debt or a one-off cost; the income suits a long absence. This site describes the contracts and the money, not the conditions a policy lists: those are in each insurer’s policy wording.

Rates read and sums checked by Radif Partners · Editorial policy · How the figures are worked out

How long a lump sum lasts

The simplest way to size a lump sum is in months of outgoings. The table divides each sum by £2,100 a month, with no interest and no other income. A household that keeps working after a claim would make it last longer; one that also loses an income would spend it faster.

Outgoings of £2,100 a month. Your own figure goes in the calculator.
Lump sumMonths of outgoingsYears
£25,00011.9 months1.0 years
£50,00023.8 months2.0 years
£75,00035.7 months3.0 years
£100,00047.6 months4.0 years
£150,00071.4 months6.0 years

What a monthly benefit adds up to

An income benefit of £1,500 a month pays in proportion to the length of the absence. The last column is what remains short each month against the same outgoings, before state support.

Benefit £1,500 a month. State support comes on top, see below.
Absence after the deferred periodIncome protection paidStill short
6 months£9,000£3,600
12 months£18,000£7,200
24 months£36,000£14,400
60 months£90,000£36,000

The state support alongside either policy

An employee who cannot work gets Statutory Sick Pay of £123.25 a week at most, for up to 28 weeks, then possibly New Style ESA from £95.55 a week. These are paid on the inability to work, not on a policy definition, so they run alongside income protection and alongside any lump sum. The income protection timeline shows the state support week by week.

Reading the contracts

A critical illness policy pays when the insured person meets a definition in the policy, and some definitions require a level of severity. Policies differ in how many definitions they list, whether they pay a partial amount for less severe claims, and whether children are covered. An income protection policy pays when the insured person cannot do their job, or any job, depending on its definition of incapacity, after the deferred period. The key features document of each policy lists all of this without asking for your details.

Income protection benefits from a policy you pay for yourself are free of income tax under section 735 of ITTOIA 2005. A combined policy that adds critical illness to life cover pays once; the life and critical illness page shows what that means for the family.

Choosing a sum

A simple way to set a critical illness sum is to decide what it must do. Clearing a mortgage needs the balance; paying the bills for a period needs that many months of outgoings, as in the first table; adapting a home or paying for a partner to stop work needs a separate estimate. Many people pick one of these rather than all of them, because the premium rises with the sum. Where income protection is already in place, the lump sum can be smaller, since it no longer has to replace pay over a long absence.

Questions people ask before they buy cover

Tap a question to see the answer.

Is critical illness cover worth it if I already have income protection?

It depends on what the money would be for. Income protection replaces part of your pay while you cannot work; it pays nothing if you go back to work, even part-time in some policies. A critical illness lump sum is paid on a valid claim even if you keep working, so some people use it to clear debts or adapt a home. The two can work together.

Do I pay tax on a critical illness payout?

A lump sum from a critical illness policy you pay for yourself is normally free of income tax and capital gains tax. If it is not used and stays in your estate, it can count for inheritance tax when you die, like any other savings. A policy held in trust, or one owned by a business, follows other rules, set out in the policy documents.

Why are some critical illness claims declined?

A claim is paid only when it meets the policy definition, which can include a severity level, and when the answers given at the start were complete and accurate. Most declined claims turn on one of those two points. Reading the definitions in the key features document before buying, and answering the application questions fully, are the two things a buyer controls.

Work out next

GOV.UK, legislation and ONS pages behind this page

Rates, rules and life-table figures on this page were checked against these pages on 7 November 2026.

Worked out by

Independent publisher of UK protection calculators built on state benefit rates and ONS life tables

Rates checked on · Editorial policy · Contact

State rates for the tax year 2026, last read on . Estimates only, from GOV.UK rates for 2026/27 and ONS life tables: general information, not financial advice or a personal recommendation.