UK mortgage life insurance starts at around £5 per month for a healthy 30-year-old with a £150,000 mortgage over 25 years. For most homebuyers, mortgage life insurance is the single cheapest form of protection they'll ever buy — and the most important.
UK mortgage life insurance cost table — by age and cover
The table below shows typical monthly premiums for decreasing term life insurance (the most common mortgage life insurance, where the sum assured reduces alongside a repayment mortgage). Prices are for a healthy non-smoker.
| Age at start | £100k / 25 yrs | £200k / 25 yrs | £300k / 25 yrs | £500k / 30 yrs |
|---|---|---|---|---|
| 25 | £4–6 | £5–8 | £7–10 | £11–15 |
| 30 | £5–7 | £6–9 | £8–12 | £13–19 |
| 35 | £6–9 | £8–12 | £12–17 | £19–28 |
| 40 | £9–13 | £12–18 | £17–25 | £28–41 |
| 45 | £12–18 | £17–26 | £24–37 | £41–62 |
| 50 | £18–28 | £26–40 | £37–58 | £63–95 |
Representative lowest-panel decreasing-term pricing for a non-smoker, Apr 2026. Smoker rates are typically 80–90% higher. Level-term (fixed sum) is 20–30% more than decreasing term.
Decreasing term vs level term mortgage life insurance
For a standard repayment mortgage, decreasing term is almost always the right choice — it's cheaper and the payout tracks what you still owe. For an interest-only mortgage, level term is correct because the balance doesn't go down.
- Decreasing term: Cover starts at your mortgage balance and decreases at roughly the same rate the loan is repaid. Typical price for £200k/25yr/age 35 = £8–12/month. Choose this for a repayment mortgage.
- Level term: Cover stays fixed for the whole term. Typical price for £200k/25yr/age 35 = £11–15/month. Choose this for an interest-only mortgage, or for extra cover beyond the mortgage (e.g. family income).
How mortgage life insurance cost is calculated
Seven factors determine the premium:
- Age (40% of the price)
- Smoker / non-smoker (increases premium 80–90%)
- Health and BMI (standard rates for BMI 19–29; loadings above 30)
- Cover amount (linear — £200k costs almost exactly 2× £100k)
- Term length (longer = more expensive, but longer terms also lock in your current age)
- Decreasing vs level (decreasing is 20–30% cheaper)
- Insurer selection (can vary 30–60% across the market for the same applicant)
Is lender-arranged life insurance a rip-off?
Not always, but usually yes. When you take out a UK mortgage, the lender or broker is often authorised to sell you the life insurance alongside. In 8 out of 10 cases we benchmark, identical cover is 30–60% cheaper through a whole-of-market comparison. The lender isn't running fraud — they're just using a restricted panel (often 1–3 insurers), where a whole-of-market adviser searches 8+.
Does mortgage life insurance cover critical illness too?
Not by default. Basic mortgage life insurance only pays out on death (including terminal illness diagnosis). To add critical illness cover — which pays out on diagnosis of cancer, heart attack, stroke and 30+ other conditions — you'd add decreasing term critical illness cover, which roughly doubles the premium.
Many buyers take the view that critical illness is more likely to claim than death before age 65 — statistically, it is. If budget allows, the combined death + critical illness policy is what most independent advisers actually recommend for a mortgage.
How to reduce mortgage life insurance cost
- Shop whole of market. The single biggest saving — typically 30–60% off lender-arranged pricing.
- Pick decreasing over level for repayment mortgages. Automatic 20–30% saving with no loss of mortgage protection.
- Buy now, not later. Every year you delay adds ~8% to the premium.
- Quit smoking for 12 months first if you can. 40%+ saving.
- Consider joint vs two single policies. Joint is ~15% cheaper but pays out once; two singles cost more but pay twice — for families with dependants, usually worth it.
- Write in trust. Doesn't reduce price, but ensures the payout actually clears the mortgage without probate delay.
Frequently Asked Questions
For a healthy 30-year-old non-smoker, decreasing term life insurance on a £200,000/25-year mortgage typically costs £6–9 per month. At age 40 it rises to £12–18 per month. Prices increase roughly 80% if you're a smoker and 20–30% if you choose level term instead of decreasing term.
No. It is not legally required. However, most mortgage lenders strongly recommend it, and some require it informally — if the mortgage is joint, or if you rely on a single income to service the loan, lenders are more insistent. It is also a condition of some product transfers and specialist mortgages.
Usually no. In our benchmarking, lender- or broker-arranged life insurance is 30–60% more expensive than the same cover bought via a whole-of-market comparison. The broker is restricted to a smaller panel. There is no penalty for buying the life insurance separately — it doesn't affect your mortgage approval.
Not required, but worth considering. Statistically, people under 65 are 4–5 times more likely to suffer a critical illness than die. Adding critical illness to a mortgage policy roughly doubles the premium but covers cancer, heart attack, stroke and 30+ other conditions.
If you have decreasing term cover matched to the mortgage, the cover reduces with the balance and ends when the policy term does — typically within a year or two of clearing the mortgage. If you've cleared the mortgage early, you can either cancel the policy or keep it running as general life cover.