We do not teach how insurance works in the US school system, and I think that’s unfortunate. It also doesn’t help that the insurance most people think of first is health insurance, which in the US is more of a cost-sharing plan than insurance.
So let’s quickly go over what insurance is and how it works financially.
At its core, insurance is a bet against yourself. It’s a hedge.
When you pay your car insurance premium, you are betting that you will get into an accident. When you pay your homeowners insurance premium, you are betting that your house will burn down or be flattened in a hurricane. When you pay life insurance premiums, you are betting that you will die young/soon.
Of course, we all have strong incentives NOT to get into a car crash, let our house be damaged, or kick the bucket. This is what is called an insurable interest - it’s why you can’t take our insurance on someone else’s car and then slam the brakes right in front of them - to minimize moral hazard.
If everything goes well - you drive safely, hurricanes skip your house, you live to life expectancy - then congratulations! You win. Although it may feel like those premiums were wasted, you paid them at the time because you didn’t know the future.
So how does it work? The insurance company does some actuarial math to estimate if there are 10,000 people in a life insurance product, how many will die and what benefits will need to be paid out in an average year.
While no one can predict when YOU die (except perhaps you, who have better info about yourself than any doctor or insurer), it’s possible to predict the PROBABILITY you will die in any given year. Not helpful individually, but across thousands of people this becomes useful to the insurer. The more people within an insured group, the more accurate.
This is the Law of Large Numbers. Just like any given coin flip is unpredictable, you can be relatively certain that 100 flips will be around 50% heads, and 100k flips even closer to 50% heads. As the number of flips (or insured persons) grows, realized outcomes converge on the expected probability.
If you’re clever, you will already notice that highly predictable outcomes are bad things to insure against. Why? Because the insurer will be better at predicting it than you, so will just charge you the cost + some profit.
This is, counterintuitively, why a lot of preventative care is forced to be covered by law and bundled with other medical coverage.
If the insurer knows you will - roughly very 12 months - go in for a yearly physical, and that physical usually costs, say, $100, then they will just build $100 into their expected loss and charge you for it via premiums.
This is actually a bad deal for you, because insurance is pretty costly to administer both by nature and for important compliance reasons. So a near-certainty of $100 paid every January tends to require >$100 in spending. And insurers have to pay their employees and rent and other expenses so that gets added to the premium as well.
For similar reasons, SMALL amounts are impractical for insurance.
So what is insurance good for? LARGE, UNPREDICTABLE expenses.
And in the ideal insurance model, the expenses are far in the future. That allows the insurer to invest the premiums during that time lag.
This is underappreciated! Commonly, insurers in competitive markets take in LESS in premium payments than they pay out. The investment returns on the float over time is what allows a competitive insurance market to function so efficiently.
Returning to the original poster, her husband is clearly on term life insurance. And the premiums are rising because the odds of his dying continue to rise (everyone converges on ☠️ eventually). At some point, the odds of dying over a year become >50% and he becomes basically uninsurable at any reasonable price.
Whole life is a little different. It’s kind of like a pension where you pay in enough to underwrite your entire life and not just next year 1/2
For 15 years we paid $78 per month for my Husband’s $150,000 life insurance policy. Then a few years ago they raised it to $300. Then two months ago now that he turned 73 they raised it to $700 per month! This is ridiculous. Now when he is older and may die we can’t afford it. This should be illegal!