Quick answer · Updated August 2026
Both pay out whenever you die — the difference is what each pound buys. Underwritten whole-of-life requires health questions but typically buys 3–5× more cover per pound and has no payout cap. Guaranteed over-50s plans skip all health questions but cap at £10,000–£20,000 with waiting periods, and long lives can pay in more than the payout. Healthy applicants should always price whole-of-life first.
Side by Side (August 2026)
| Underwritten whole-of-life | Guaranteed over-50s plan | |
|---|---|---|
| Health questions | Yes (rarely a physical exam) | None — acceptance guaranteed |
| Cover available | Uncapped — £10,000 to £1m+ | Capped £10,000–£20,000 by provider |
| Cover per pound (healthy 60yo) | ≈3–5× the guaranteed plan | Baseline |
| Waiting period | None — full cover day one | 12–24 months for natural causes |
| Pay-in-more-than-payout risk | Lower (more cover for same premium) | Real — SunLife's own documents flag it |
| Best for | Healthy applicants; inheritance/IHT planning | Health that blocks underwriting; simplicity |
Verified plan facts August 2026; see the worked break-even example in our SunLife review.
A Real Example at 60
A healthy 60-year-old non-smoker paying £30/month: a guaranteed plan locks in roughly £9,000–£10,000; underwritten whole-of-life at the same premium typically buys £25,000–£40,000 depending on insurer and health — with no waiting period. The guaranteed plan only wins when underwriting would decline or heavily load you. Price both in that order: over-50s hub → whole-of-life guide.
Frequently Asked Questions
For anyone who can pass basic health questions, almost always — typically 3–5× more cover per pound, no payout cap and no waiting period. Over-50s plans earn their place only when health blocks underwriting.
Yes — both are lifelong. The differences are cover-per-pound, caps, waiting periods and whether health questions are asked.
Yes, with serious health issues — which is precisely the situation guaranteed-acceptance plans exist for. Try underwritten first via a broker's anonymous enquiry; fall back to guaranteed only if needed.