The Mortality and Multiplier Tables They Don't Want You to See

Every life insurance premium starts with a single question: how likely are you to die this year? The answer comes from a mortality table — a row of numbers, one per age, that says “out of 1,000 people exactly like you, this many will be dead twelve months from now.” The 2017 CSO is the standard table almost every U.S. carrier uses as a baseline. It’s filed publicly with state insurance departments. You could, in theory, download it tomorrow.

So why does almost no one know it exists?

Because the 2017 CSO is only the start. Sitting on top of it is a stack of carrier-specific adjustments — pricing mortality (the carrier’s own experience-based assumptions, which actuaries deliberately distinguish from the valuation mortality in the CSO table), table ratings, COI multipliers, dividend scales — that turn that public number into the premium you actually pay. Those adjustments are where the money lives. They are also, almost without exception, not shown to you. They sit in actuarial memorandums filed with regulators, in carrier rate manuals available only to appointed agents, and in pricing models even most agents don’t fully understand.

This is a guide to those tables. What they are, what your carrier is doing with them, and the four moves a sophisticated buyer makes to avoid getting quietly overcharged.

— Part OneThe mortality table: the public document nobody reads.

The 2017 Commissioners Standard Ordinary Mortality Table — “the 2017 CSO” — is the foundation. It’s a regulatory document, jointly developed by the National Association of Insurance Commissioners and the Society of Actuaries, that every state has adopted as the legal benchmark for life insurance pricing and reserves.

Here’s roughly what that slice looks like for a male nonsmoker, in deaths per 1,000 lives per year:

That’s the public version. It says almost nothing about your actual premium.

— Part TwoThe multiplier: how the table becomes your premium.

If you’re a perfectly healthy applicant, your premium is the carrier’s pricing mortality times its loading factors (expenses, profit, commission, reserves). That’s “Standard” or “Preferred” or “Preferred Plus” — the names vary, but the idea is the same: classes of healthy people priced off something close to the base table.

If you’re not perfectly healthy, you get rated. And this is where the multiplier system enters. Carriers use a numbered table — confusingly, also called a “table” — to express how much extra mortality your health profile carries. Each step adds 25% to your assumed mortality. Some carriers use numbers (1 through 8+); others use letters (A through H). They mean the same thing.

“Table 4” doesn’t sound like much when an agent says it casually. It means your premium is double what a healthy person your age pays. Twice as much, every month, for the entire life of the policy.

Two carriers can look at the exact same medical file and disagree on the rating by three full tables — a 75% premium swing on identical labs.— PolicyReveal Desk · Reviewing 47 in-force placements, 2024–2025

Here is the part almost no consumer understands: the rating is not objective. Each carrier maintains its own underwriting niche — what conditions they’re aggressive on, what they’re conservative on. One carrier might rate a 45-year-old with controlled Type 2 diabetes at Table 2. Another might rate the same applicant at Table 4. A third might decline. There is no central authority that arbitrates this.

An example: how the multiplier compounds.

Take a 45-year-old man, $500,000 of 20-year term, well-controlled high blood pressure. Here is the math, carrier by carrier, on the same medical file:

Same person. Same condition. Same coverage. The only thing that changed is which carrier saw the file. Over a 20-year term, that’s $14,920 in unnecessary premium if the applicant takes the first quote instead of shopping the rating.

— Part ThreeThe COI scale: where permanent policies quietly bleed.

For term life, the multiplier story is mostly a one-time event. You get rated, you get a price, the price is locked for the term length, you move on.

For permanent policies — universal life, indexed universal life, variable life — the story is uglier, because the mortality charge isn’t a level annual premium. It’s deducted monthly, from inside the policy, as a line item called the cost of insurance charge — the COI. And most permanent policies carry two COI scales: a “current” scale (what you’re charged today) and a “guaranteed maximum” scale (the highest the carrier is contractually allowed to charge). The two are almost never the same number.

Read that table again. The carrier is currently charging 18 cents per thousand at age 45. The contract allows them to charge up to 31 cents — 72% more — at their discretion, with notice. They have raised it, on entire blocks of in-force policies, repeatedly, over the last fifteen years. Ask anyone whose Universal Life policy unexpectedly required a premium increase in their seventies. The COI scale was the silent killer.

— Part FourWhat to do about it.

Knowing the tables exist is half the battle. The other half is the four moves a sophisticated buyer makes to avoid getting overcharged. None are secret. All require either an independent agent, your own willingness to do the work, or both.

1. Shop the rating across multiple carriers — always.Never accept the first table rating an agent comes back with. Different carriers underwrite the same condition differently. An independent agent appointed with 20+ carriers can run your file through several at once. A captive agent cannot. This single move is worth more dollars than any other consumer-side action in life insurance.
2. Request reconsideration after favorable changes.If you've quit smoking, lost 30+ pounds, gotten your blood pressure under control, or completed treatment, you can ask the carrier (usually after 12 months) to re-underwrite. Carriers do not advertise this. Many policyholders pay table-rated premiums for years after they should have been bumped to standard.
3. For permanent policies, demand the COI schedule before you buy.It is in the policy, and the carrier is required to disclose it. Compare the current and guaranteed-maximum scales side by side. If the gap at age 75 is more than 50%, treat the policy with skepticism — that gap is your future premium increase, just deferred.
4. Get an illustration run at guaranteed rates.Carriers won't hand you the actuarial memo, but they are required to provide an illustration run at guaranteed (worst-case) rates and charges. This shows what your policy looks like if every non-guaranteed assumption goes wrong at once. If it collapses on the guaranteed page, the illustration you're being sold is fiction.