Do You Need Critical Illness Cover for a Mortgage?
Your mortgage is almost certainly the largest financial commitment you will ever make. Critical illness cover for your mortgage is not legally required by any UK lender, but it is strongly recommended by brokers and financial advisers. Life insurance protects your family if you die, but what happens if you are diagnosed with a serious illness like cancer, a heart attack, or a stroke and cannot work? Your mortgage repayments do not stop just because you are ill.
Critical illness cover (CIC) for mortgages pays a tax-free lump sum if you are diagnosed with a qualifying condition. That lump sum can be used to pay off your remaining mortgage entirely, giving you one less thing to worry about during recovery. ABI data shows that 97.9% of critical illness claims are accepted. Without CIC, many homeowners are forced to rely on limited savings, statutory sick pay of just £118.75 per week, or eventually face the prospect of selling their home.
For a full introduction to how CIC works, see our guide on what is critical illness cover.
Decreasing vs Level Critical Illness Cover for Mortgages
When you take out CIC to protect a mortgage, one of the most important decisions is whether to choose decreasing or level cover. Both have their advantages, and the right choice depends on your circumstances.
| Feature | Decreasing CIC | Level CIC |
|---|---|---|
| Payout amount | Reduces over time, roughly mirroring your mortgage balance | Stays the same throughout the policy term |
| Best suited for | Repayment mortgages where the balance reduces each year | Interest-only mortgages, or when you want cover for more than just the mortgage |
| Monthly cost | Lower, typically 30% to 50% cheaper than level | Higher, because the insurer's potential payout stays constant |
| Flexibility | Limited, only covers the declining mortgage balance | High, spare funds can cover living costs, treatment, or adaptations |
| Common use | Often assigned directly to the mortgage lender | Usually paid to the policyholder to use as they choose |
Decreasing cover explained
Decreasing critical illness cover is designed to mirror a capital repayment mortgage. As you pay down your mortgage each month, the cover amount reduces roughly in line with your outstanding balance. If you claim in year one, you receive a large payout. If you claim in year 20 of a 25-year term, the payout is much smaller because your mortgage balance is much lower.
The main advantage is cost. Decreasing CIC is significantly cheaper than level cover because the insurer's maximum liability decreases over time. The trade-off is that the payout only covers the mortgage, there is nothing left over for other expenses.
Level cover explained
Level CIC pays the same lump sum regardless of when you claim during the policy term. If you take out £250,000 of level cover, you receive £250,000 whether you claim in year one or year 24. This means that if you claim later in the term when your mortgage balance is lower, you have surplus funds to cover living costs, private treatment, or home adaptations.
Combined CIC with Life Insurance vs Standalone CIC
Most people protect their mortgage with a combined life insurance and critical illness policy. This is the most cost-effective approach, but it comes with an important limitation: the policy pays out only once, either on diagnosis of a critical illness or on death, whichever happens first.
Combined policies
A combined policy is cheaper than buying life insurance and CIC separately. If you are diagnosed with a critical illness and the policy pays out, your life cover ends. This means your family would have no death benefit from that policy if you later died. For many people, the cost saving makes this trade-off acceptable, especially if they have other life cover in place.
Standalone CIC
A standalone CIC policy covers only critical illness, it does not include a death benefit. You would purchase this alongside a separate life insurance policy. This costs more in total but means both events are independently covered. If you claim on the CIC, your life insurance remains active.
How Much Does Mortgage CIC Cost?
The cost of critical illness cover for a mortgage depends on several factors: your age, health, smoking status, the cover amount, and the policy term. CIC premiums are higher than life insurance premiums because you are statistically more likely to be diagnosed with a critical illness during a 25-year mortgage term than to die during the same period.
As a rough guide, here are indicative monthly costs for a 25-year decreasing CIC policy of £250,000:
| Age | Non-Smoker | Smoker |
|---|---|---|
| 30 | £28 – £50/month | £45 – £85/month |
| 35 | £40 – £70/month | £65 – £115/month |
| 40 | £60 – £105/month | £100 – £170/month |
| 45 | £90 – £155/month | £155 – £260/month |
These are approximate figures for illustration only. Actual premiums vary by insurer, your medical history, and whether you choose guaranteed or reviewable premiums. For personalised figures, see our guide on how much critical illness cover you need.
Assigning Your CIC Policy to Your Lender
When you take out CIC for your mortgage, you can choose to assign the policy to your mortgage lender. This means that if you make a successful claim, the payout goes directly to the lender to pay off or reduce your mortgage balance.
Assignment is most common with decreasing term CIC, where the payout is specifically designed to clear the mortgage. With level cover, most people prefer to keep the policy unassigned so they control how the money is used.
What Happens When You Remortgage?
Your CIC policy is a separate contract from your mortgage, so switching lenders or remortgaging does not automatically cancel your cover. However, there are practical steps you need to take:
- Reassign the policy, if your CIC was assigned to your previous lender, you need to reassign it to the new lender. Your adviser or insurer can handle the paperwork.
- Review the cover amount, if your new mortgage is for a higher amount, your existing CIC may no longer be sufficient. You may need a top-up policy.
- Check the term, ensure your CIC term matches or exceeds your new mortgage term. If your new mortgage runs longer, you may have a gap in cover towards the end.
For more on protecting your mortgage when switching, see our guide on income protection for mortgages which covers the broader picture of mortgage protection.
CIC vs Income Protection for Mortgage Holders
Critical illness cover and income protection serve different purposes, and many mortgage holders benefit from having both. CIC pays a one-off lump sum for specific serious conditions, while income protection replaces a portion of your monthly income if you are unable to work for any medical reason.
- CIC, best for clearing the mortgage entirely with a single payout. Only covers conditions on the policy list.
- Income protection, best for covering monthly repayments and bills on an ongoing basis. Covers any condition that stops you working, including mental health and back pain.
- Both together, the most comprehensive approach. CIC clears the mortgage; income protection covers ongoing living expenses.