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Voluntary Benefits Growth Model

Only around 27% of employees are aware their EAP exists, and 45% don't fully understand their benefits package. Benefits discovered at the moment of need convert; benefits explained at enrolment are forgotten. This model shows what a discovery-led lift in voluntary participation is worth on your book.

4 inputsInstant resultsFree — no sign-up

Your book

Members eligible for voluntary or flexible benefits across your schemes.
% of eligible employees currently taking up voluntary lines.
Blended across your voluntary lines (dental, CI top-up, cash plans, etc.).
Display only — enter the premium in your currency.
+2.0 pts
Percentage-point gain in participation from surfacing relevant voluntary options inside moment-of-need interactions. Deliberately capped — the achievable uplift is empirical and should be tested per scheme, not promised in aggregate.

Executive summary

Incremental annual premium
£300k
a 25% relative increase in voluntary premium, at close to zero marginal distribution cost
Voluntary premium today
£1.2m
8,000 participating employees at 8%
With discovery-led uplift
£1.5m
10,000 participants at 10.0%

Why the uplift is plausible: 73,000 of your eligible employees — at the sector's 27% awareness benchmark — don't currently know their embedded benefits exist. A member asking about a dental problem, a stress absence or a GP appointment is, in that moment, the most qualified audience for the relevant voluntary line that will ever exist. The uplift models converting a fraction of that traffic.

Built on industry research
EAPA UKHCMLMetLife EBTSSwiss Re
Updated July 2026

Turn the utilisation gap into growth

The distance between what employers are already paying for and what their employees experience is where renewals are defended and voluntary growth compounds. Onsi helps insurers and benefit providers close it — surfacing the right benefit at the moment of need, within a governed, auditable framework that respects the regulatory perimeter.

Indicative only. The model reproduces the illustration in section 4 of the whitepaper: eligible lives × participation rate × average premium, with uplift applied as a percentage-point gain in participation. It excludes retention effects, per-member premium changes, and the renewal-defence value of utilisation data — all of which run in the provider's favour — and is not a representation about outcomes on any particular book of business. Awareness and utilisation figures are drawn from sector research cited in the whitepaper (EAPA UK, HCML, MetLife EBTS).

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