How much critical illness cover should you take out?
The amount of critical illness cover you should take out depends on what you want the payout to do.
There is no single figure that works for everyone.
Some people want enough cover to clear their mortgage. Others want enough to cover one or two years of household bills. Some want a smaller lump sum to help with recovery, childcare, debts or time off work.
A useful starting point is to ask:
If I was diagnosed with a serious illness covered by the policy, how much money would my household need to stay financially stable?
That question is more useful than simply choosing a random amount or picking the cheapest option.
Critical illness cover usually pays a lump sum if you are diagnosed with a serious illness listed in the policy and meet the insurer’s definition. That lump sum can often be used flexibly, such as for your mortgage, rent, bills, childcare, recovery costs, home adaptations or debt reduction.
The right cover amount should reflect your mortgage, income, family responsibilities, savings, employer benefits and budget.
👉 [Check how much critical illness cover could make sense for your household]
Why the right amount matters
Critical illness cover is designed to give you financial breathing space after a serious diagnosis.
The wrong amount can create problems in two different ways. If the cover is too low, it may not do enough when you need it. A small payout may help with immediate bills, but it may not be enough to protect the mortgage, replace income or support your family during recovery. If the cover is too high, the premiums may become expensive. That can make the policy harder to keep long term. The goal is not necessarily to buy the maximum amount available.
The goal is to buy an amount that solves a real financial problem at a price you can afford.
Start with the purpose of the cover
Before choosing an amount, decide what the policy is meant to protect.
Critical illness cover may be used for:
- Mortgage protection
- Rent payments
- Household bills
- Replacing lost income for a period
- Childcare costs
- School costs
- Debt repayment
- Treatment-related expenses
- Travel to appointments
- Home adaptations
- Recovery time
- Supporting a partner who reduces work
- Creating an emergency buffer
Your cover amount should be linked to the purpose. For example, someone who wants to clear a £220,000 mortgage may need a very different amount from someone who only wants a £40,000 recovery fund.
Option 1: Cover your full mortgage balance
One common approach is to take out enough critical illness cover to clear your mortgage.
For example:
- Mortgage balance: £240,000
- Critical illness cover amount: £240,000
This could give you the option to pay off the mortgage if you made a successful claim. That can be powerful because it may remove the biggest monthly bill from the household budget. This approach may be especially relevant if:
- You have a large mortgage
- Your household relies on your income
- You have children
- Your sick pay is limited
- You are self-employed
- Your partner would struggle to pay the mortgage alone
- You want to remove major financial pressure during recovery
However, full mortgage cover can be expensive, especially if the mortgage is large or if critical illness cover is added to life insurance. If full mortgage cover is unaffordable, a lower amount may still be useful.
👉 [See whether full mortgage critical illness cover is affordable]
Option 2: Cover part of the mortgage
You do not always have to cover the entire mortgage.
Some people choose enough cover to reduce the mortgage rather than clear it completely.
For example:
- Mortgage balance: £240,000
- Critical illness cover amount: £100,000
A £100,000 payout may not clear the mortgage, but it could reduce the balance significantly. That may lower monthly payments, make remortgaging easier, or give the household more flexibility. This can be a practical compromise when full mortgage cover is too expensive.
Partial cover may still help you:
- Reduce monthly commitments
- Avoid arrears
- Create breathing space
- Make work decisions more calmly
- Reduce pressure on savings
- Give your family more options
Critical illness cover does not have to be all or nothing.
Some cover can still be much better than no cover.
Can Critical Illness Cover Help Pay Off My Mortgage | Find Me Life Insurance
Option 3: Cover one or two years of household bills
Another approach is to base your cover amount on household expenses. This can be useful if your main concern is having enough money to recover without rushing back to work.
Start by calculating your essential monthly costs.
These may include:
- Mortgage or rent
- Council tax
- Gas and electricity
- Water
- Food
- Broadband and phones
- Car costs
- Insurance
- Childcare
- School costs
- Debt repayments
- Basic household spending
Then multiply that by the number of months you want covered.
For example:
- Essential monthly costs: £2,500
- Desired support period: 18 months
- Suggested cover starting point: £45,000
This approach may suit people who do not need to clear the mortgage but want a recovery fund. It can also be useful where income protection is already in place, but a lump sum would still help with extra costs.
Option 4: Replace income for a set period
Some people calculate critical illness cover around income replacement. For example, you may want enough money to replace one or two years of after-tax income. This could help if you need treatment, surgery, recovery time or a gradual return to work.
For example:
- Net annual income: £32,000
- Desired income replacement: 2 years
- Critical illness cover amount: £64,000
This method can work well if your biggest concern is income disruption. However, critical illness cover is not the same as income protection. Critical illness cover usually pays only for specified serious illnesses that meet the policy definition. Income protection may be more suitable if your main concern is being unable to work due to illness or injury more generally.
Option 5: Add childcare and family support costs
If you have children, childcare can be one of the biggest issues after a serious diagnosis. A parent may need treatment, rest or recovery time. The other parent may need to keep working, reduce hours, or take time off.
The family may need extra help with:
- Nursery fees
- Childminders
- Breakfast clubs
- After-school clubs
- Holiday clubs
- School runs
- Childcare for siblings
- Help at home
- Support for children with additional needs
These costs can be significant. If you are a parent, your cover calculation should not only look at your mortgage and income.
It should also ask:
What practical support would the family need if I was seriously ill?
This is especially important where one parent stays at home or works part-time. A stay-at-home parent may not earn a salary, but if they became seriously ill, the working parent may need to pay for childcare or reduce working hours. That has real financial value.
Option 6: Include debts and immediate expenses
A serious illness can make existing debts harder to manage.
You may want critical illness cover to help clear or reduce:
- Credit cards
- Personal loans
- Car finance
- Store finance
- Overdrafts
- Family loans
- Secured loans
- Other regular debt repayments
You may also want to include immediate expenses such as:
- Travel to hospital appointments
- Parking
- Treatment-related costs
- Home equipment
- Recovery support
- Emergency savings
Clearing debts can reduce monthly pressure at a time when your income may fall and costs may rise.
Option 7: Include home adaptations or practical changes
Some serious illnesses may require changes to your home or lifestyle. A critical illness payout could help with:
- Wheelchair access
- Bathroom changes
- Stairlift installation
- Bedroom adjustments
- Mobility aids
- Specialist furniture
- Transport changes
- Temporary accommodation
- Help around the home
Not everyone will need this.
But if your home would be difficult to adapt or if you have limited savings, it may be worth including a buffer.
This is one reason critical illness cover is often described as a living benefit.
It can help you adapt while you are still alive and recovering.
Subtract savings and existing protection
Once you have estimated your needs, you should also look at what you already have.
You may be able to subtract or factor in:
- Emergency savings
- Employer sick pay
- Group income protection
- Workplace critical illness cover
- Existing life insurance
- Existing critical illness cover
- Partner’s income
- Family support
- Investments or accessible savings
For example:
- Estimated need: £100,000
- Accessible savings: £20,000
- Employer critical illness benefit: £25,000
- Remaining potential gap: £55,000
This does not mean you must reduce your cover exactly by those amounts, but it helps you avoid over-insuring.
The aim is to understand the gap.
Check your employer sick pay
Employer sick pay can make a big difference. Some people receive full pay for several months, then half pay for a period.
Others only receive limited sick pay. Some may move onto statutory support quickly.
Before choosing critical illness cover, check:
- How long full pay lasts
- Whether half pay applies
- Whether commission or bonuses are included
- What happens after sick pay ends
- Whether benefits depend on length of service
- Whether cover ends if you leave the employer
- Whether there is group income protection
- Whether there is workplace critical illness cover
Good employer benefits may reduce the amount of personal cover you need.
Weak employer benefits may increase the need for personal protection.
Consider income protection as well
Critical illness cover and income protection are different. Critical illness cover usually pays a lump sum if you are diagnosed with a specified serious illness and meet the policy definition. Income protection usually pays a regular income if you cannot work due to illness or injury and meet the policy terms. This matters because you may be too ill to work but not qualify for a critical illness claim. For example, some back problems, mental health conditions, chronic pain conditions or non-listed illnesses may stop you working but may not trigger critical illness cover. If your biggest worry is monthly income, income protection may be just as important as critical illness cover, or even more important.
A balanced protection plan may include both, but affordability always matters
Level cover or decreasing cover?
The amount of critical illness cover you choose may also depend on whether the policy is level or decreasing.
Level critical illness cover
Level cover stays the same throughout the policy term. For example, £100,000 of cover remains £100,000 from start to finish. This may suit people who want a fixed lump sum for family protection, income replacement or an interest-only mortgage.
It may cost more than decreasing cover.
Decreasing critical illness cover
Decreasing cover reduces over time. It is often used for repayment mortgage protection because the mortgage balance should reduce as payments are made. This may be cheaper, but the payout falls over time. It may not be suitable if you want a fixed recovery fund or if your mortgage is interest-only.
The choice depends on whether your need reduces over time.
Should critical illness cover match your mortgage term?
If the cover is mainly for mortgage protection, the policy term should usually match the mortgage term.
For example:
- Mortgage term: 25 years
- Critical illness cover term: 25 years
If the policy ends before the mortgage, you may have a protection gap. If the policy lasts longer than the mortgage, you may pay for cover after the mortgage need has ended. That may still be appropriate if you want wider family protection, but it should be intentional.
For family protection, the term may instead be linked to:
- When children become financially independent
- When childcare costs reduce
- When your partner reaches retirement
- When debts are expected to be cleared
- When savings are expected to be stronger
Should both partners have critical illness cover?
In many families, both partners should at least consider it. That does not mean both need the same amount. One partner may need cover because they are the main earner. The other may need cover because they provide childcare, household support or part-time income. If either person became seriously ill, the household could be affected financially.
For example:
- The main earner may lose income.
- The stay-at-home parent may need care and childcare support.
- The lower earner may still provide essential household stability.
- The other partner may need to reduce work to help.
Protection should reflect both roles, not just salary.
Should you choose joint or single cover?
Critical illness cover may be arranged on a single or joint basis, depending on the provider and product. A joint policy can be simpler and may cost less than two separate policies. But joint cover may only pay once and then end.
That means if one person claims, the other person may no longer have cover. Two single policies may cost more, but they can provide more flexibility. Each person has their own cover, and one claim does not necessarily remove the other person’s protection. This can be especially important for families with children.
Before choosing, ask:
- Does the policy pay once?
- Does cover end after one claim?
- Would the other person still need protection?
- Are both partners’ roles properly covered?
- Would two single policies provide better protection?
Combined life and critical illness cover
Many people add critical illness cover to life insurance. This can be convenient and may be useful for mortgage or family protection. However, the structure matters. Some combined policies pay once and then end. For example, if you claim for critical illness, the life insurance may stop. That may be fine if the payout clears the mortgage and solves the main financial risk.
But it may leave a gap if you still need life cover afterwards. Separate life and critical illness benefits may provide more comprehensive protection, but can cost more. Always check what happens after a claim.
How affordability affects the right amount
Affordability is a major part of choosing critical illness cover. There is no point choosing a high cover amount if the premium becomes difficult to maintain. A policy only protects you while it remains active.
If you stop paying premiums and the policy lapses, you may lose the cover. If your ideal amount is too expensive, you could consider:
- A lower cover amount
- A shorter term
- Decreasing cover for a repayment mortgage
- Separating life and critical illness amounts
- Combining critical illness with income protection differently
- Prioritising the most important risk first
- Reviewing cover later if your budget improves
The right answer may be a compromise.
That is normal.
Example: mortgage-focused cover
Imagine you have:
- Repayment mortgage: £220,000
- Term remaining: 25 years
- No major debts
- One partner could cover bills if the mortgage was cleared
You may consider critical illness cover linked to the mortgage.
That could mean:
- £220,000 decreasing critical illness cover over 25 years
- Or a lower amount if full cover is unaffordable
- Or level cover if you want a fixed payout
The aim would be to help clear or reduce the mortgage after a serious diagnosis.
Example: family-focused cover
Imagine you have:
- Mortgage: £250,000
- Two children
- One main income
- Childcare costs
- Limited savings
- Employer sick pay only for a few months
In this case, simply covering part of the mortgage may not be enough.
You may want cover that helps with:
- Mortgage payments
- Income replacement
- Childcare
- Debts
- Recovery time
- Family support
That might mean a larger lump sum, a combination of policies, or using critical illness cover alongside income protection.
Example: budget-limited cover
Imagine full mortgage critical illness cover would be too expensive.
That does not mean you should give up.
You might consider a smaller amount, such as:
- £25,000
- £50,000
- £75,000
- £100,000
A smaller payout could still help with:
- One year of bills
- Childcare
- Debt reduction
- Recovery costs
- Mortgage payments for a period
- Emergency savings
Some protection can still be meaningful if it is chosen carefully.
A simple calculation method
A practical way to estimate your cover is:
- Start with your mortgage or rent need.
- Add essential household bills for 12 to 24 months.
- Add childcare or family support costs.
- Add debts you would want cleared.
- Add recovery or home adaptation costs.
- Add an emergency buffer.
- Subtract savings and existing benefits.
- Check whether the premium is affordable.
This will not produce a perfect answer, but it gives you a sensible starting point.
For example:
- Mortgage reduction target: £100,000
- Bills for 18 months: £45,000
- Childcare and support: £15,000
- Debts: £10,000
- Recovery buffer: £10,000
- Total need: £180,000
- Savings and existing benefits: £30,000
- Potential cover gap: £150,000
You may then compare whether £150,000 of cover is affordable, or whether a smaller amount would still be useful.
👉 [Get help working out a realistic critical illness cover amount]
Common mistakes when choosing the amount
Only choosing the cheapest amount
Cheap cover may be better than no cover, but it may not solve the problem you are trying to protect.
Automatically covering the full mortgage
Full mortgage cover can be useful, but it may not always be affordable or necessary.
Forgetting childcare costs
A serious illness can create extra childcare needs, especially for young families.
Ignoring income protection
Critical illness cover does not pay for every illness or injury that stops you working.
Not checking employer benefits
Sick pay, group income protection or workplace critical illness cover can affect how much personal cover you need.
Choosing the wrong term
If the policy ends before your mortgage or family need ends, you could have a gap.
Assuming joint cover protects both people fully
Some joint policies pay once and then end.
Cancelling old cover too quickly
If your health has changed, new cover may be more expensive or unavailable.
Questions to ask before deciding
Before choosing your cover amount, ask:
- What would I want the payout to do?
- Do I want to clear the mortgage or reduce it?
- How long would I need bills covered?
- How much emergency savings do I have?
- How generous is my employer sick pay?
- Do I have group income protection?
- Do I already have critical illness cover?
- Would my partner need time off work?
- Would childcare costs increase?
- Do I need level or decreasing cover?
- Should the policy match my mortgage term?
- Would income protection be more suitable for part of the risk?
- Can I afford the premium long term?
- Would a smaller amount still provide useful protection?
These questions are more useful than simply asking for an average figure.
So, how much critical illness cover should you take out?
You should take out enough critical illness cover to give your household meaningful financial breathing space after a serious covered diagnosis. For some people, that may mean enough to clear the mortgage. For others, it may mean enough to cover one or two years of bills.
Some may choose a smaller lump sum to help with debts, childcare, recovery costs or reduced income. A sensible approach is to calculate your financial gap. Look at your mortgage, rent, bills, childcare, debts, savings, employer benefits and income. Then choose a cover amount that is useful, realistic and affordable. The right amount is not always the biggest amount.
It is the amount that would make a serious illness financially manageable without creating premiums you cannot sustain.
👉 [Compare critical illness cover amounts and find a realistic option]
Related critical illness guides
If you are working out how much critical illness cover you may need, these guides may also help:
- [Life insurance vs critical illness cover: what’s the difference?]
- [Can you combine life insurance and critical illness cover into one policy?]
- [Why is critical illness cover considered a living benefit?]
- [Which illnesses are typically covered by critical illness policies?]
- [Does critical illness cover include early-stage cancers?]
- [Is critical illness cover worth it if I already have employer sick pay?]
- [How does life insurance work with a mortgage?]
This article focuses on how much critical illness cover may be suitable. The related guides explain how critical illness cover works, how it compares with life insurance, what conditions may be covered, and how it can support mortgage or family protection.
Final thoughts
Critical illness cover can be valuable because it pays a lump sum while you are still alive, after a serious diagnosis covered by the policy. That money can help with your mortgage, bills, childcare, debts, recovery time, home changes and family stability. But choosing the right amount takes thought. Start with what you want the payout to do. Then work backwards from your mortgage, income gap, household costs, childcare needs, debts and savings.
If full cover is too expensive, do not assume the choice is all or nothing. A smaller amount may still provide meaningful protection. The best critical illness cover is not simply the largest policy available.
It is cover that fits your real financial risks, your family responsibilities and your budget.
👉 [Start a protection quote and work out your critical illness cover amount]
