Quick answer · Updated July 2026
Family cash plans hinge on one question: are children free? At Medicash (from £7.20/month) and Westfield (£8.58, children on key benefits) they are — making a family's routine dental check-ups, kids' eye tests and the odd physio course claimable for under £10/month. Couples double the adult premium (Westfield L1: £17.16). For families, entry-tier cash plans are the rare product that reliably pays for itself (verified July 2026).
Key Facts · 2026-07-17
- Children free: Medicash covers children at no extra cost; Westfield includes children on key benefits free (own sites, July 2026).
- Westfield couple price: £17.16/month at Level 1 (2× £8.58); family benefit limits are per adult, so a couple doubles the claimable pot.
- A family's claimable year: 2 adult dental check-ups + 2 kids' eye tests + new glasses + a physio course — mostly reclaimable within Level 1–2 tiers.
- Context: a family of four's PMI averages £180.64/month (myTribe, March 2026) — a cash plan is a different, complementary product at ~5–10% of that cost.
Cash plan first, PMI maybe
For young families the spending pattern is predictable: dental check-ups, children's optical (kids' glasses need replacing annually), physio for parental backs. That's precisely a cash plan's coverage map, with no underwriting and children riding free. PMI answers a different question — catastrophic illness and queue-jumping serious diagnostics — at 10–20× the price. Many families sensibly run a £10–£18/month cash plan now and add PMI when budgets allow, using the child-deal insurers (Bupa Family+, Aviva pay-oldest-only) when they do (verified July 2026).
Claiming without friction
Modern cash plans are app-first: photograph the receipt, cashback lands in days. Two admin notes for families: benefit years and qualifying periods run per person from joining, and children's eligibility ages vary by provider — check each plan's child age limit and which benefits children actually share (Westfield's 'key benefits' wording, for instance) before counting their claims in your maths (July 2026).
Who This Isn't For
If what worries you is serious childhood illness — urgent scans, surgery, consultant access — a cash plan does nothing: it refunds check-ups, not treatment. That's PMI territory (see the family child-pricing deals) or the NHS. And single, healthy adults who skip dentists rarely claim enough to beat even £7.20/month.
Related: see our health cash plan comparison hub.
Frequently Asked Questions
Often: Medicash covers children at no extra cost and Westfield includes them on key benefits free (July 2026). Check which benefits children share and their age limits — definitions vary by provider.
Different jobs: a cash plan (£7.20–£18/month) refunds predictable dental/optical/therapy costs; PMI (£180.64/month family average, myTribe March 2026) covers serious private treatment. Families on a budget usually get more day-to-day value from the cash plan first (verified July 2026).