Whole Life Insurance in a High-Rate World: What to Consider

Andrew Weber, CFP^®, CLU^®, AEP^®, RICP^®, WMCP^®, is a senior director of Planning, Thought Leadership, and Research for Northwestern Mutual.

When interest rates on certificates of deposit, Treasury bills, and bonds rise, it's natural to wonder how those options compare with whole life insurance. That reaction is understandable: When yields are higher, consumers naturally look for the best place to put their money. But the comparison only tells part of the story because these tools are built for different purposes.

Higher rates on shorter-term, lower-risk instruments can look like a compelling alternative to long-term financial tools, including whole life insurance. But whole life insurance is not a savings account or a bond. The better question is not whether whole life can out-yield today's rates, but what role it can play alongside savings and investments in a long-term plan. It's a long-term financial tool designed to do something those instruments cannot: provide permanent death benefit protection, build guaranteed value over time, and serve a meaningful role in your financial plan across decades of your life.

Why whole life insurance and short-term rates are built for different jobs

When interest rates rise, CDs and Treasurys get attention—and for good reason. For shorter-term goals with a defined timeline, they can be a solid fit. But when you use a short-term instrument to evaluate a long-term product, you're measuring the wrong things against each other.

Think of it this way: A hammer is an excellent tool. It does one thing extremely well. But you wouldn't evaluate a Swiss Army knife by asking whether it can drive a nail as efficiently as a hammer. The Swiss Army knife isn't trying to win that comparison—it's designed to do far more. Whole life insurance works the same way. Its value isn't captured in a single rate or yield; it's found in the range of things it can do for you across a lifetime: permanent death benefit protection, guaranteed growth, financial flexibility, and a coordinated role in your retirement and legacy planning.

The dividend interest rate (DIR) on a whole life policy¹ does move in response to market conditions over time, but more gradually than rates on shorter-term instruments. That measured pace is part of the design. How whole life insurance works is different from how a savings account or bond works—accumulated value is guaranteed to grow from one year to the next, regardless of what interest rates or markets do. It's a stable component of a financial plan, not a vehicle built to win a rate race in any given year.

Waiting for a “better” rate environment before purchasing a policy can put too much weight on a short-term factor. It’s a little like judging a marathon by who is leading after the first mile: Early pace matters. But what really counts is who is built to last to the finish. Whole life insurance is designed to be owned for decades, so a slightly higher dividend interest rate in one year or another is unlikely to change the long-term outcome. In the meantime, you’re missing the protection the policy would provide from day one.

Waiting for a “better” rate environment before purchasing a policy can put too much weight on a short-term factor. It’s a little like judging a marathon by who is leading after the first mile: Early pace matters. But what really counts is who is built to last to the finish. Whole life insurance is designed to be owned for decades, so a slightly higher dividend interest rate in one year or another is unlikely to change the long-term outcome. In the meantime, you’re missing the protection the policy would provide from day one.

What whole life insurance actually provides

Whole life insurance starts with a foundation that no CD or Treasury note can offer: a permanent death benefit. That protection can bring more certainty to a long-term plan, helping create a stable foundation while other assets are positioned to pursue growth. And because whole life insurance also builds guaranteed cash value over time, it can add flexibility you may be able to use during your lifetime—not just protection for the people you care about after you're gone.

A death benefit that doesn't expire

Unlike term life insurance, which covers you for a defined period, whole life insurance provides a death benefit that lasts for as long as you pay your premiums. That permanent protection can anchor a financial plan in ways that go well beyond income replacement. In retirement, it can allow you to spend your other assets more deliberately—knowing a generally income-tax-free death benefit will remain in place for your heirs. It can also allow retirees with traditional pensions to elect a higher-income payout option, knowing the death benefit will help protect a surviving spouse.

Cash value that grows regardless of market conditions

As you pay your premiums, a portion of each payment is allocated to your policy's accumulated cash value. That value is guaranteed to grow over time—it cannot decrease due to market volatility, interest rate movements, or shifts in the broader economic environment. This stability distinguishes whole life insurance from market-driven assets and makes it a meaningful diversifier within your broader financial plan.

Your cash value can be accessed during your lifetime through policy loans or withdrawals, subject to policy rules and trade-offs². Trade-offs may include reducing your policy’s cash value or death benefit and potentially affecting dividends, interest costs, or tax treatment. Used strategically—and with guidance from your financial advisor—it may help cover needs, supplement retirement income, or provide flexibility during market downturns.

Tax-related features of whole life insurance—including how accumulated value grows and how it may be accessed—involve specific rules and depend on your individual circumstances. Before accessing your policy's cash value, it’s important to consult with a qualified financial professional.

How whole life insurance works alongside investments in a broader financial plan

The case for whole life insurance becomes clearer when you stop viewing it in isolation and start seeing it as one coordinated part of your financial strategy—working alongside your investments, not replacing them.

Northwestern Mutual research examined scenarios in which couples purchased whole life insurance during periods of historically high interest rates—moments when CDs and short-term Treasurys were outpacing the policy's dividend interest rate—and compared their long-term outcomes against strategies that relied on investments alone. Across multiple historical scenarios, the strategy that combined whole life insurance with investments provided the ability to support higher retirement spending or leave a greater legacy than the investment-only approach, even when the policy was purchased during periods when rates on safer assets were elevated.

Part of what drives those outcomes is a Comprehensive Asset Allocation approach: Because whole life accumulated value serves as a component of the safer-asset portion of a retirement portfolio, it can allow invested assets to be positioned more aggressively—shifting some fixed income to equity—while still aligning with an overall target risk profile. In other words, stable policy value may help create room for growth assets to stay invested, especially when markets are volatile.

The stakes for long-term planning are real. According to Northwestern Mutual's 2026 Planning & Progress Study, 46 percent of Americans say they don't expect to be financially prepared for retirement, while nearly half—48 percent—believe it is likely they will outlive their savings. What’s more, Americans now believe they'll need $1.46 million to retire comfortably—$200,000 more than in 2025. Those numbers underscore why the long-term components of a financial plan deserve long-term thinking.

The real cost of waiting

Some people put off purchasing whole life insurance while they wait for a more favorable rate environment. It's an understandable instinct—but it carries a cost that's easy to overlook.

The cost of life insurance is driven by mortality costs, which rise with age. Purchasing earlier is more affordable, and the earlier you start, the more time your cash value has to accumulate and compound. Every year you wait is a year the potential death benefit protection isn't in place—and a year of early growth you can't recapture.

There's also no guarantee that short-term rates will remain where they are. CDs and Treasurys reset at maturity, and rates that look attractive today may not be available when you're ready to reinvest. A whole life insurance policy locks in coverage based on your age and health at the time of purchase, and that coverage doesn't reset or expire.

That does not mean everyone should buy immediately; it means timing should be evaluated in the context of your age, health, budget, and long-term goals. Your Northwestern Mutual advisor can help you evaluate whether whole life insurance is the right fit, when it makes sense to act, and how it can work alongside your other financial tools to support the plan you're building.

Frequently asked questions

Is whole life insurance a good investment?

Whole life insurance is not an investment—it doesn't carry a market-based rate of return or behave like a stock or bond. It's a financial planning tool that combines permanent death benefit protection with guaranteed cash value growth and a range of living benefits. Whether it makes sense for you depends on your goals, your time horizon, and your broader financial plan. Your Northwestern Mutual advisor can help you evaluate the role it might play alongside your other assets, including how the pros and cons of whole life insurance apply to your situation.

How does the dividend interest rate on whole life insurance compare to CD or Treasury rates?

The dividend interest rate (DIR)¹ on a whole life policy is not the policy's rate of return, and comparing it directly to CD or Treasury rates is not an apples-to-apples evaluation. The DIR does respond to market conditions over time, but more gradually. More importantly, whole life insurance provides something CDs and Treasurys do not: a permanent death benefit, guaranteed cash value growth, and financial flexibility that compounds over the long term.

Can whole life insurance be part of my retirement plan?

Yes. Whole life insurance's accumulated cash value can serve as a source of supplemental retirement income, a buffer during market downturns, or a component of a coordinated asset allocation strategy alongside your investments. It can also support legacy planning through a permanent, generally income-tax-free death benefit. A financial advisor can help you understand how these features might fit your specific retirement picture.

Is whole life insurance right for everyone?

Whole life insurance can offer permanent death benefit protection, guaranteed cash value growth, and flexibility that other financial assets may not provide. But if you're early in your financial planning journey or your budget is constrained, the timing may not be right. In that case, it may make sense to start with term life insurance to help protect your insurability and convert to whole life insurance over time. Even starting with a small whole life insurance policy can provide important benefits. Whole life insurance is most valuable when it's part of a comprehensive financial plan designed around your specific needs, goals, and time horizon. The decision to purchase a policy is best made with the guidance of a qualified financial advisor who can review your full financial picture.

¹ The dividend interest rate should not be used as a measure of the policy’s internal rate of return, because mortality and expense charges also come into play. The dividend scale and the underlying dividend interest rates are reviewed annually and are subject to change. Future dividends are not guaranteed.

² There are different ways to use your policy’s cash value. These different methods have advantages and disadvantages. There may also be tax implications. Whether you take your money in the form of a surrender, withdrawal, or loan, the policy’s value and death benefit will be reduced. Taking money out will also affect dividends paid on the policy, if those are available. Any money withdrawn from the policy, beyond what you paid in cumulative premiums, will be taxable. Loans are not taxable when they are taken and can have adverse effects if not managed properly. Policy loans and automatic premium loans, including any accrued interest, must be repaid in cash or cash values when the policy terminates, or the insured person dies. Repaying loans from cash values (other than death benefit funds) can trigger a significant tax event, and there may be little or no cash value left to pay the tax. If loans and accrued interest reach the amount of your cash value, additional cash payments are necessary or the policy will terminate. Policyowners should consult with their tax advisors about the impact of using their policy’s cash value.

Certified Financial Planner Board of Standards Center for Financial Planning, Inc. owns and licenses the certification marks CFP^®, CERTIFIED FINANCIAL PLANNER^®, and CFP^® (with plaque design) in the United States to Certified Financial Planner Board of Standards, Inc., which authorizes individuals who successfully complete the organization's initial and ongoing certification requirements to use the certification marks.