Life Insurance and BMI: How Insurers Assess Weight – and What It Means for Your Premiums
Body Mass Index (BMI) is one of the most common concerns people have when applying for life insurance. Many assume that being above a certain weight will mean they can’t get cover — or that premiums will be unaffordable.
The reality is more nuanced.
All insurers will take BMI into account when assessing an application, and in most cases, premiums will increase as BMI rises. However, the extent of that increase — and whether cover is available at all — can vary significantly between insurers.
At Your Life Protected, we regularly help clients secure cover across a wide range of BMI ranges by understanding how different insurers interpret risk.
What is BMI?
BMI is a simple calculation based on your height and weight. It’s used as a broad indicator of whether someone falls within a “healthy”, “overweight”, or “obese” range.
While it’s widely used, it’s important to recognise that BMI is not a perfect measure. It doesn’t account for factors such as muscle mass, body composition, fitness levels, or overall lifestyle. However, despite its limitations, BMI remains the most practical and consistent way for insurers to assess weight-related risk across large numbers of applications.
Why Insurers Use BMI
Insurers need a standardised way to assess risk fairly and consistently. BMI provides a measurable indicator that correlates with long-term health risks such as Cardiovascular Disease, Diabetes, and High Blood Pressure.
It’s not about judging an individual’s health — it’s about applying a consistent framework across thousands of applicants.
How BMI Affects Life Insurance
In general, many insurers will begin to apply premium increases once BMI reaches around or above 30.
As BMI increases further, the level of loading typically increases. At higher BMI levels, some mainstream insurers may decline applications altogether (often when BMI reaches around 40 or above) although this can vary between providers.
Importantly, this does not mean cover is unavailable. There are insurers within the market who are able to consider significantly higher BMI levels — in some cases into the mid-50s and potentially beyond. This is where insurer selection becomes particularly important, as the difference in outcome between providers can be significant.
Different Products, Different Approaches
Life Insurance
Life Insurance generally has the most flexible and lenient underwriting rules. Many insurers are willing to offer cover across a wider range of BMI levels, although premiums will increase as BMI rises. When we start to look at Critical Illness Cover and Income Protection policies, the thresholds at which premiums start to increase, and policies get refused, come down.
Why Insurer Choice Matters
While all insurers assess BMI, they do not all increase premiums at the same rate for different BMI limits. Some more lenient companies may be able to offer identical policies for between 25% – 50% less per month than other, so doing the research pays dividends, especially when you are taking a policy out for decades!
The Bottom Line
BMI plays an important role in how insurers assess applications — but it is only one part of the overall picture. You can check out your BMI here:
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Premiums will usually increase as BMI rises, but the extent of that increase can vary depending on overall health, the type of cover, and the insurer selected. If you’re unsure how your BMI may affect your options, Speak with an Adviser today.