We tend to insure our homes, our cars and our holidays without a second thought. But the one thing we often forget to protect is our ability to keep life running if our health takes an unexpected turn. That’s where critical illness cover comes in, which can be added to your Post Office Life Insurance for an additional premium. 

A diagnosis of cancer, a heart attack or a stroke can change everything, not just physically, but financially too. Critical illness cover is designed to give you a cash lump sum at exactly that moment, so that money doesn’t become another thing to worry about while you focus on recovering or adjusting to your new condition.

This guide explains what critical illness cover is, how to think about how much you might need, and how it works as part of your life insurance policy.

What is critical illness cover? 

Critical illness cover is a type of insurance that pays out a cash lump sum if you’re diagnosed with a serious illness covered by your policy. Unlike income protection, which replaces your income gradually over time, critical illness cover pays out in one go. Your payout is tax-free, unless the policy is provided by your employer, where things can get slightly more complicated.
 
You can use the money however you need to. It can act as a short-term buffer, enabling you to take some time off work for treatment without losing income. Others use it to adapt their home, take a dream family holiday or simply have a bit of breathing room by removing financial pressure at a challenging time.

Do I need critical illness cover?

You may want to consider it if you have financial commitments that would be difficult to meet if you could not work, such as a mortgage, rent or regular outgoings that depend on your income. It is also worth thinking about if your employer sick pay is limited, or if you would exhaust your savings quickly if your income stopped for several months. 

If you have dependants who rely on your income, or if you are self-employed and have no safety net from an employer, the case for critical illness cover tends to be stronger. The same is true if you would want the option of private medical care or home adaptations if you were seriously ill.

Ultimately, it comes down to a straightforward question: if you were diagnosed with a serious illness tomorrow and could not work for six months or more, would you and your family be financially secure? If the answer is uncertain, critical illness cover is worth exploring.

How much critical illness cover do I need?

There is no single right answer to this. You can't predict how a critical illness would impact your life and therefore it’s not something you can work out with a calculator. Instead, it’s more useful to think through what you would actually need the money for if you were seriously ill and unable to work for a certain period.

Think about your outgoings

Start with the costs that would carry on regardless of whether you were earning: your mortgage or rent, utility bills, food, transport, any loan repayments and any childcare costs. Consider how long you could realistically cover those costs from savings, sick pay or disability benefits, and how much of a shortfall there might be beyond that point.

Think about how your working life might change

A serious illness does not always mean being unable to work at all. Many people will of course make a full recovery. Others return to work in a reduced capacity, move to part-time hours, or need to change roles to accommodate their condition. A lump sum payout could help bridge that income gap during a period of adjustment, without you having to make urgent financial decisions at an already difficult time.

Think about what else you might need

Beyond day-to-day costs, there are other expenses that can arise after a serious diagnosis: private medical consultations, specialist treatments, adaptations to your home, or the cost of having family members take time off work to support you. A cash lump sum gives you the flexibility to meet those needs without having to justify how you spend it.

Think about what you already have in place

It’s also worth factoring in what support you already have. Employer sick pay, income protection insurance, savings and any state benefits you might be entitled to all reduce the gap you need to fill. The right amount of critical illness cover is the difference between what you would need and what you already have covered.

Post Office critical illness cover is available up to £200,000, or 100% of your life insurance cover amount, whichever is lower.

What conditions does Post Office critical illness cover include?

Post Office critical illness cover focuses on the conditions that are most commonly diagnosed and most likely to have a serious impact on your ability to work and live normally. The four conditions covered are:

  • Cancer (except less advanced cases) 
  • Coronary artery bypass grafts (with surgery to divide the breastbone) 
  • Heart attack (of specified severity) 
  • Stroke (resulting in permanent symptoms) 

These are among the most significant health events a person can face. The focus on a defined set of serious conditions means the policy is straightforward and the scope of cover is clear.

Remember to read the full policy terms carefully before applying, as each condition has specific definitions that determine whether a claim would be paid. Your policy documents will set these out clearly.

How does critical illness cover work?

Post Office critical illness cover is an optional add-on to Post Office Life Insurance, rather than a standalone product. This means you need to have a Post Office life insurance policy in place to include it.

The simplest time to add critical illness cover is when you take out your life insurance policy, as both can be set up together in a single application. If you already have Post Office Life Insurance, you can also add critical illness cover at a later stage.

How the payout works

If you’re diagnosed with one of the four covered conditions and your claim is accepted, Post Office will pay out the agreed lump sum directly to you. The payout is tax-free and there are no restrictions on how you use it. You do not need to be terminally ill or unable to work to make a claim: a confirmed diagnosis that meets the policy definition is sufficient.

You need to survive for 30 days after your diagnosis to be able to claim. This may sound quite blunt, but it basically means that you can’t make a claim on both your critical illness cover and your life insurance for a very short-term illness. If you were to have a heart attack and pass away four days later, you wouldn’t receive both payouts. After that 30-day period however, you are entitled to both payouts if you die within your policy term.

Once a critical illness claim has been paid, that element of your cover ends. You'll stop paying premiums for critical illness cover but your life insurance premiums will continue at the same price. The level of life insurance cover you have is also unaffected by whether you claim on your critical illness cover.

Is terminal illness cover the same as critical illness cover?

No, despite the similar names, they work differently.

Terminal illness cover provides you with your full life insurance payout up front if you’re given a terminal diagnosis by your doctor and have less than 12 months left to live. At Post Office, terminal illness cover is included with all our life insurance policies as standard.

Critical illness cover from Post Office

Post Office critical illness cover is designed to be straightforward. Here’s a summary of our product:

  • Cover for four serious conditions: cancer (except less advanced cases), coronary artery bypass grafts, heart attack and stroke 
  • A tax-free cash lump sum paid directly to you on diagnosis 
  • Cover of up to £200,000, or 100% of your life insurance cover amount, whichever is lower 
  • An instant decision when you apply, with immediate cover from the start date. Please note, you have to hold a policy for three months before you can make a claim 
  • Get a quote online in minutes 
  • Children’s cover also available as an add-on, at an additional cost 
  • 24/7 access to health and wellbeing services including bereavement support for you and your immediate family. This free service is separate from your contract and could be withdrawn in future. We'll let you know if that happens 
     

Life insurance and critical illness cover: a more complete safety net

Life insurance and critical illness cover are often thought about separately, but they work together. Life insurance is there to protect the people who depend on you if you die. Critical illness cover is there to protect you if you survive something serious.

That distinction is worth sitting with for a moment. A serious diagnosis does not just affect your family’s future: it affects your present. The mortgage still needs paying. The bills still arrive. Life carries on, even when you are not well enough to work. Critical illness cover is the financial support that bridges that gap, giving you choices and breathing room at a time when you need both.

Life insurance covers what happens to your family after you’re gone. Critical illness cover supports you while you’re still here. Adding critical illness cover to your life insurance is a way of making your protection more complete, so that you’re not only covered for the worst outcome, but also for the serious ones you live through. Together, they give you and the people who matter to you a stronger foundation, whatever life throws your way.

Key takeaways

  • Critical illness cover pays a tax-free lump sum if you are diagnosed with a serious covered condition 
  • Post Office covers four conditions: cancer (except less advanced cases), coronary artery bypass grafts, heart attack and stroke 
  • The right amount of cover depends on your outgoings, your income gap, and the support you already have in place 
  • Cover is available up to £200,000, or 100% of your life insurance cover amount, whichever is lower 

Take out a policy today to protect your tomorrow

Common questions about critical illness cover

  • For many people, yes. The value of critical illness cover depends on your personal circumstances, particularly your financial commitments, your savings, and the sick pay available to you. If a period of serious illness would put significant pressure on you or your family, critical illness cover can provide meaningful support. It’s worth considering alongside your life insurance rather than instead of it.

  • Post Office critical illness cover is an add-on to Post Office Life Insurance and cannot be taken out as a standalone product. If you don’t currently have a Post Office life insurance policy, you would need to take one out at the same time.

  • Not for all cancers. Post Office critical illness cover includes cancer but excludes less advanced cases. The policy wording sets out the specific definitions that apply. It is worth reviewing the full terms carefully before applying if this is a particular concern.