Critical illness vs disability insurance: which do you need?
Critical illness and disability insurance both protect you if you get sick, but they pay for different things. Critical illness insurance pays a one-time lump sum when you are diagnosed with a listed condition, such as cancer, a heart attack or a stroke, whether or not you can work. Disability insurance pays a monthly income while illness or injury keeps you from working, from a much wider range of causes, subject to the policy’s exclusions and limits. For most people who depend on their earnings, disability insurance covers more of the ways an illness or injury can cut off your income, and critical illness adds a lump sum on top. How critical illness coverage works is in our critical illness insurance guide.
Side by side
| Critical illness insurance | Disability insurance | |
|---|---|---|
| Pays for | Diagnosis of a listed condition | Being unable to work, or able to work only part of the time, from illness or injury |
| Form of payment | One lump sum | A monthly income |
| Depends on your ability to work | No | Yes |
| Waiting before payment | A survival period for some conditions, often 30 days | A waiting period, commonly three to six months; you choose it on an individual policy, your employer sets it on a group plan |
| How long it pays | Usually once for the full benefit; many policies also pay a smaller early-stage benefit | Until you recover or the benefit period ends, such as 2 years, 5 years or to 65 |
| Who can buy it | Generally any adult within the issue ages who qualifies on health; larger amounts are limited relative to income | People who are employed or self-employed, based on their income |
| Tax on benefits | Generally tax free on a policy you own personally | Tax free if you paid all premiums; if your employer paid some or all, taxable less what you contributed |
Why most disability claims are not critical illnesses
A Canadian Institute of Actuaries study of group long-term disability claims in payment between 2009 and 2015 found the leading causes were mental disorders (30 percent, and 25 percent outside Quebec), musculoskeletal conditions such as back and joint problems (21 percent) and cancer (13 percent), with circulatory conditions and accidents each under 10 percent. More recent insurer data shows the mental health share growing: one major insurer reported mental health at 37 percent of its long-term disability claims in 2024, up from 29 percent in 2014.
Mental health and musculoskeletal conditions are not critical illnesses, so at least half of the long-term disability claims in that study came from conditions a critical illness policy would not pay for. That is the main reason disability insurance usually comes first for people who rely on their income. A critical illness policy can pay for cancers, heart attacks and strokes that meet its definitions, which cause some disability claims, and it pays even if you keep working.
How disability insurance works
Disability policies are built from a few choices, which our guide to disability insurance in Canada covers in more depth:
- Waiting period. How long you must be disabled before benefits start. Individual policies offer a wide range, and in group long-term disability plans the waiting period is most often about four months.
- Benefit period. How long benefits can last, such as 2 years, 5 years or to age 65. Most group long-term disability claims in the actuaries’ study had benefits payable to 65.
- Definition of disability. Many policies start with your own or regular occupation, then switch, often after two years, to whether you can do any occupation you are reasonably suited for. Claimants can lose benefits at that switch even when their medical condition has not changed.
- Partial and residual benefits. Many individual policies pay part of the benefit if you can work reduced hours or lose part of your income.
- Offsets. Benefits can be reduced by other disability income, such as Canada Pension Plan or Quebec Pension Plan disability benefits, workers’ compensation or group benefits, and some policies cap your total income at a share of what you earned before.
- Exclusions and limits. Some policies, especially simplified issue ones with no medical exam, exclude mental health conditions, and others limit mental health and soft-tissue claims to two years. Check these terms, since they are the most common causes of claims.
Individual disability insurance is based on your earnings, so it is available to people who are employed or self-employed. The Financial Consumer Agency of Canada notes that combined benefits from more than one plan usually won’t be more than 60 to 85 percent of your regular pay.
Using both together
When a disability comes from a covered condition, such as a cancer that meets the policy’s definition, critical illness can fill gaps disability insurance leaves:
- The waiting period. A lump sum can cover the months before disability benefits start.
- The income gap. Disability benefits replace only part of your income, and a lump sum can make up some of the difference.
- Costs beyond income. Out-of-pocket costs of a serious illness, such as take-home drugs, travel and parking, which our guide to whether critical illness insurance is worth it sets out.
- Illnesses that let you keep working. Critical illness pays on diagnosis even if you return to work quickly.
Ask how a disability policy treats other income before buying both, since some policies reduce benefits once your total income passes a set share of what you earned before.
What happens when you leave a job
Group long-term disability coverage generally ends with the job. Group life insurance, and some group critical illness plans, offer a way to convert to individual coverage, but disability coverage usually does not. That makes individual disability and critical illness coverage especially relevant for the self-employed and for anyone whose coverage depends on one employer. Our guide to life insurance vs disability insurance covers how workplace coverage fits together.
Tax
Disability benefits are tax free if you paid all the premiums yourself. If your employer paid some or all of them, the benefits are taxable, less any premiums you contributed, according to the Canada Revenue Agency. A critical illness benefit on a policy you own personally is generally received tax free.
Frequently asked questions
What is the difference between critical illness and disability insurance?
Critical illness insurance pays a one-time lump sum if you are diagnosed with a listed condition, such as cancer, heart attack or stroke, whether or not you can work. Disability insurance pays a monthly income, after a waiting period, while illness or injury keeps you from working or limits how much you can work.
Which should I buy first, critical illness or disability insurance?
If you have no disability coverage and depend on your income, disability insurance usually comes before critical illness, because it covers far more causes of lost income. In a Canadian study of group long-term disability claims, mental disorders and musculoskeletal conditions made up about half of claims, and neither is a critical illness. Critical illness then adds a lump sum on top.
Can I have both critical illness and disability insurance?
Yes, and they can work together: if a disability comes from a covered condition, a critical illness payment can help cover the disability waiting period and the share of income disability insurance does not replace. Ask how a disability policy treats other income, since some reduce benefits once total income passes a set share of what you earned before.
Are disability insurance benefits taxable?
They are tax free if you paid all the premiums yourself. If your employer paid some or all of them, the benefits are taxable, less any premiums you contributed. A critical illness benefit on a policy you own personally is generally received tax free.
Can I keep my workplace disability coverage if I leave my job?
Usually not. Group long-term disability coverage generally ends with the job, while group life and some group critical illness plans offer a way to convert to individual coverage. That is one reason the self-employed and people planning a job change look at individual coverage.
What to do next
Start with what you already have through work, then decide which gap matters most: lost income from any cause, or a lump sum for a serious diagnosis. A licensed advisor can price disability and critical illness coverage together so they fit together and you are not paying for more coverage than you need.
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