What's the difference between critical illness and income protection?
Critical illness cover pays a one-off lump sum if you are diagnosed with a covered serious illness that meets the policy definition. Income protection pays a regular monthly income if any illness or injury stops you working, after a deferred period. They protect against different risks, and many people hold both.
What triggers a payment
Critical illness depends on a specific diagnosis. Income protection depends on being unable to work, whatever the cause, subject to exclusions.
How it is paid
A lump sum can pay off debts or cover large costs. A monthly income helps with ongoing bills.
Which you need
It depends on your sick pay, savings and commitments. An adviser can help.
This article is general information about UK protection insurance, not personalised financial advice. Policy terms vary between insurers and products, so always check your own policy documents.
Last updated 27 October 2026