Critical illness cover for a family can combine a policy for each adult, one joint policy for two people, children's cover that comes with a parent's policy and, where an insurer accepts it, cover on another relative such as a parent, which turns on insurable interest. Which mix suits a household depends on who relies on whose income and who is able to apply. Households differ, so a talk with an FCA-authorised broker about who needs which cover may help. The call is free, so whenever it suits you, you can book one from the form on this page.

What can critical illness cover for a family include?

Insurers' documents describe building blocks rather than one family product. A single-life policy covers one adult, a joint policy covers two people under one contract, and children are covered as part of a parent's policy, automatically or by choice. Each part has its own rules on who can be covered, how often it pays and until what age.

Separate policies or one joint policy for a couple?

The key difference is how many times the cover pays. Aviva's critical illness cover page says that "The policy only pays out once, for a listed critical illness unless it’s a children’s claim or an additional critical illness claim." On a joint policy that means one partner's claim uses up the cover for both. Legal & General's policy summary for its life and critical illness cover (QGI14786 - 2026/10) says it will "only pay the amount of cover once" on a joint policy. Under its replacement cover option, the other partner may be able to start a single-life policy of their own.

With a policy each, each person holds their own sum and their own claim. The detail of how a joint payout works, and the survivor options, is on joint life insurance with critical illness cover, and the wider question of one policy or two is in joint or individual life insurance.

Can you take out critical illness cover on a spouse, parent or other relative?

The test is insurable interest: a financial reason, recognised in law, for insuring another person. Vitality's plan provisions, which govern its serious illness cover as well as its life cover, say: "You must have an insurable interest in the person covered when you take out the plan." The same document says that if it does not exist the plan becomes void. That is one insurer's wording; others set the test in their own terms.

For a husband, wife or civil partner, LV= sets out the position for life insurance: "If you are married or in a civil partnership then you can insure each other, using a life insurance policy and there’s no need to prove insurable interest."

For a parent, the same page says that in England, Wales and Northern Ireland there has to be a potential financial loss, or an obligation such as a court order, even where the parent supports you with money; for a brother or sister, being family is not reason enough on its own. It notes that the rules differ slightly in Scotland. Legal & General's guide to insuring parents gives examples such as a parent's debts or medical bills that the children must repay, or a surviving parent's care costs. It adds that "the parents must consent before life insurance can be taken out on their behalf", and that its application is completed by the person being insured. Both pages are about life insurance. Whether a particular insurer will write critical illness cover on a relative is something the broker can ask insurers about while on the free call-back.

The question can also be turned round. Everyone has an insurable interest in their own life, so, as L&G's guidance points out, you can insure your own life to benefit your parents, using a trust to choose who receives the payout; a parent can likewise apply for cover on their own life. For a parent who is already unwell, see life insurance on a sick parent, and for the general position life insurance on someone else.

Are children covered automatically, or do you add them?

It varies by insurer, so check the document for the policy you are quoted.

  • Legal & General (policy terms, QGI14872 - 2026/10): children's critical illness cover "is included as part of Critical Illness Cover", for a child aged between 30 days and their 18th birthday, or 21st if in full-time education. It pays one claim per child, for up to two children, and a claim does not reduce your own cover or change your premiums.
  • Aviva (its critical illness cover page, read 27 October 2026): the cover automatically includes children aged 30 days to 18 years, or 21 if in full-time education, and does not cover children for terminal illness. Children's claims are an exception to the policy paying out only once.
  • Royal London (its children's cover page, read 27 October 2026): you choose none, Standard or Enhanced, and can add or remove it later by phone without giving medical information. Both levels start at birth and run to age 22, or 23 for a child in full-time education.

Ages differ, so your children's ages matter when you compare. What each insurer pays for a child, and the conditions and exclusions, are on what child critical illness cover is.

What should a family list before asking for quotes?

  • Who is to be covered: each adult's age, whether they smoke, and any relative you want to ask about.
  • Whether you want one joint policy, a policy each, or a mix, and who would own each policy and receive any payout.
  • Your children's ages, and whether any are in full-time education, since the age limits above depend on it.
  • Cover you already have through work or from another policy, so that you are not guessing at gaps.
  • Each adult's health history, as the insurer will ask for it on the application. cover with medical conditions explains how insurers treat existing conditions.
  • How long you want cover to last, and roughly what lump sum would help; for a method to put a figure on the lump sum, see how much cover to choose.

Keep that list handy for the broker's call. The form here collects your name and age band along with phone, email and postcode; adults, children and existing cover come up during the call.

Frequently asked questions

What is critical illness insurance for a spouse?

It is cover on your husband, wife or civil partner's life, paying a lump sum if they are diagnosed with an illness the policy names and defines. It can be a policy in their own name or a joint policy covering you both, and for life cover LV= says married couples and civil partners need not prove insurable interest to insure each other.

Can I get critical illness insurance for my parents?

Legal & General's guidance, written about life insurance, says you need an insurable interest in your parents and their consent. A parent can also apply for a policy on their own life, which a broker can help them look at. Life insurance for parents covers the wider picture.

Can I leave my children off a parent's critical illness policy?

Royal London lets you choose no children's cover, while Aviva and Legal & General describe children's cover as part of the policy. Whether it can be removed is down to each policy's terms.

If hearing how a policy each, a joint policy and children's cover might fit your household would be useful, you can ask a broker to talk it over through the form on this page. For the wider picture see critical illness and income.

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