Quick answer · Updated August 2026
UK critical illness cover pays in full for all invasive cancers meeting the ABI definition — breast, lung, bowel, prostate, blood cancers and the rest. Comprehensive policies also pay partial sums (typically 25%) for early-stage and in-situ cancers such as DCIS and low-grade prostate cancer. The main exclusions: most non-melanoma skin cancers and some very early, borderline tumours.
Coverage by Cancer Type (August 2026)
| Cancer situation | Standard cover | Comprehensive cover |
|---|---|---|
| Invasive cancer (any site, ABI definition) | Full payout | Full payout |
| DCIS (early breast, with surgery) | Often excluded | Partial payout, typically 25% |
| Low-grade prostate (e.g. Gleason 6) | Often excluded | Partial payout, typically 25% |
| Melanoma | Covered by stage | Covered, wider staging |
| Non-melanoma skin cancer (basal/squamous) | Excluded | Excluded unless advanced |
| Recurrence of a pre-policy cancer | Excluded | Excluded; NEW primaries covered |
Wording varies by insurer — this is the market pattern. Cancer drives ~60% of all UK CIC claims.
Why Wording Decides Claims
Two policies can both "cover cancer" yet pay differently on the same diagnosis: the split is invasive-only versus early-stage partial payouts. Since early-stage diagnoses are among the most common claim events, comprehensive wording (Vitality's severity tiers, Guardian's Payout Markers) is usually worth its £1–3/month premium. Compare condition lists on our CIC comparison; cancer survivors seeking new cover should read our survivors guide.
Frequently Asked Questions
All invasive cancers meeting the ABI definition, yes — in full. Early-stage and in-situ cancers pay partial sums on comprehensive policies only, and most non-melanoma skin cancers are excluded across the market.
On comprehensive policies, typically yes as a partial payout (around 25% of the sum assured) following surgery. Core-only policies usually exclude it — one of the strongest arguments for comprehensive cover.
A recurrence of a cancer you had before taking the policy is excluded; a genuinely new primary cancer after the policy started is covered under the standard definitions.