What Interest Rate Is Your Life Insurance Illustration Assuming?

Written by Hannah McCullough Insurance Researcher & Writer

Usually, the answer is the policy’s stated guaranteed or non-guaranteed crediting assumption, not a universal market rate. The exact assumption depends on the policy form, insurer, and illustration date, so the document in front of you matters more than a generic percentage.

If you want to see an estimated rate for your situation, you can request an estimate before asking a licensed life insurance agent to walk through an illustration. An estimate is not the same as a guaranteed policy value, and it does not replace the policy’s contract or illustration.

There is no standard illustration rate

The short answer is that an illustration does not automatically assume 2%, 4%, or any other industry-wide number. The insurer sets the assumptions for the specific policy and identifies which projected values are guaranteed and which are not. A whole life illustration may emphasize guaranteed values and non-guaranteed dividends. A universal life illustration may show a current crediting rate alongside a guaranteed scenario. Indexed and variable products can use additional rules and assumptions. Those assumptions are also what drive IUL versus whole life comparisons, since neither product wins on a displayed rate alone.

The National Association of Insurance Commissioners explains that a basic illustration shows both guaranteed and non-guaranteed elements. That distinction is more useful than comparing a headline percentage by itself. Two illustrations with similar-looking rates can still produce different results because premiums, charges, death benefits, crediting formulas, and policy mechanics differ.

Guaranteed and non-guaranteed rates are different

Guaranteed elements are the premiums, benefits, values, credits, or charges that the policy guarantees and determines at issue. They are the contractual baseline, although the policy still has conditions such as required premium payments, loan treatment, and lapse provisions. Read the policy language and the guaranteed column together.

Non-guaranteed elements are not fixed in the same way. They can include current interest, dividends, charges, or other values shown under an insurer’s illustrated scale. The current column can help you understand how the policy might perform under the assumptions used today, but it is not a promise that those values will continue.

The California Department of Insurance describes sales illustrations as showing guaranteed results alongside results based on non-guaranteed items continuing at their present level. Actual non-guaranteed results can be better or worse than the illustrated amounts, subject to the policy’s guarantees. Assumptions set at the favorable end of that range are what separate a conservative illustration from an optimistic one.

The NAIC Life Insurance Illustrations Model Regulation bars using non-guaranteed elements in a misleading way and says that an interest rate used for illustrated non-guaranteed elements, when shown, cannot exceed the earned interest rate underlying the insurer’s disciplined current scale. That rule does not turn a current projection into a guarantee. It is a reason to ask how the rate was selected and what happens if the scale changes.

Where to find the assumption in the document

Start with the pages labeled “Summary,” “Assumptions,” “Guaranteed Values,” or “Non-Guaranteed Values.” The location and label vary by product. Look for an interest or crediting rate, an illustrated scale, a dividend scale, or a description of the index and crediting method. Do not assume that a large percentage printed near a cash-value chart is the guaranteed rate.

• Check whether the value is marked guaranteed, current, illustrated, or non-guaranteed.
• Confirm whether the rate applies to the entire account or only a defined portion of the policy value.
• Look for the frequency and timing of rate changes, plus any cap, floor, spread, expense, or participation rule.
• Read the premium, charge, and lapse assumptions next to the value projection.
• Ask for the policy form and contract section that supports the guaranteed figure.

Why the assumption changes the projection

An illustration is a year-by-year presentation of premiums, benefits, values, and related policy elements under stated assumptions. Changing a crediting assumption can change projected cash value, policy value, or the amount of premium needed to support coverage. The size of that effect depends on the product, the policy’s charges, the premium pattern, and how long the policy stays in force. Every policy charge may not appear as a separate line, so ask which costs the document itemizes.

In a universal life policy, a lower credited rate can reduce the amount available to support future costs. Depending on the contract, the owner may need to pay more, reduce benefits, or accept a shorter duration to keep coverage in force. In a whole life policy, the base premium and guaranteed values follow the contract, while non-guaranteed dividends or other illustrations can change. The illustration should show which outcome belongs to which column.

For indexed or variable policies, the displayed assumption may involve an index, separate account, or other investment-related method. The displayed rate is not the same thing as a direct investment return, and it may not describe every cost or limitation. Ask the agent to explain the crediting method in plain language before relying on the projection. If you want a second opinion, an independent reviewer can give you objective help with an illustration’s assumptions.

How to compare two illustrations

Compare the same decision points in both documents rather than choosing the higher displayed rate. Use this checklist:

Ask for the same death benefit, payment schedule, and policy duration when comparing documents. Otherwise, a higher projected value may simply reflect a different design. If a projection depends on a current scale, ask the agent to show the guaranteed column and explain the conditions that keep the policy in force. A fuller version of that check is putting the illustration’s assumptions under stress, which shows when coverage would lapse and what funding it needs.

Questions to ask before relying on the projection

Ask these questions in writing: Which rate is guaranteed? Which rate is current or illustrated? How often can the non-guaranteed rate change? What charges are deducted before interest is credited? What happens to the policy if the current assumption falls? Are loans or withdrawals included? What premium is required under the guaranteed scenario?

If your health affects your underwriting, the interest assumption is only one part of the decision. A policy’s premium, available benefit, exclusions, underwriting class, and contract guarantees also matter. If you are reviewing life insurance options for moderate copd, ask the agent to separate the underwriting result from the illustration assumptions so you can evaluate both.

Use the illustration as a decision document

An illustration is useful when it makes the policy’s tradeoffs visible. It cannot predict future non-guaranteed results, and a current column should not be treated as a promise. Focus first on the guaranteed values, then use the non-guaranteed column to understand the assumptions that support the proposed design.

If you want to see an estimated rate and how it affects a specific policy design, ask a licensed life insurance agent for an illustration that clearly separates guaranteed and non-guaranteed values. Review the assumptions, premiums, charges, and coverage duration before deciding whether the policy fits your budget.