Annuities vs. Bonds

If you asked a hundred financial professionals how they build retirement income strategies, you’d likely get a hundred different answers.

Many plans today still lean on a traditional 60/40 portfolio mix—60% in stocks, 40% in bonds. While common, this structure has its drawbacks—especially for retirees concerned about generating stable income in a rising rate environment.

Bonds are particularly susceptible to interest rate risk, which means their value can drop when rates increase. And with current interest rates still near historic lows, future increases could create headwinds for bond-focused strategies.

That doesn’t mean bonds don’t have a role. But it raises an important question—are all income options truly being considered?

If annuities aren’t part of the conversation, a key income tool could be missing. Unlike bonds, annuities include life expectancy estimates (known as mortality assumptions) in their payout calculations, offering a built-in advantage for retirement longevity planning.

The Big Income Advantage with Annuities

Each annuity payout is backed by actuarial data that calculates how long the insurer expects to pay benefits. This information helps insurance companies structure guaranteed payments for each policyholder.

Insurers spread risk across large pools of annuitants. Some individuals live longer than expected, while others pass away earlier. When someone passes away sooner, their unused funds help support payments for others—creating what’s known as “mortality credits.”

This risk-sharing mechanism gives annuities an edge over bonds, which lack any comparable way to pool risk. It’s one of the main reasons annuities are uniquely positioned to provide guaranteed lifetime income.

Today’s environment also challenges long-held retirement income rules like the 4% rule. If risk factors aren’t carefully managed, retirement plans can fall short.

One Forbes.com analysis by Dr. Wade Pfau illustrates how annuities can outperform bond-ladder strategies in specific scenarios when it comes to reliable income.

Bonds vs Annuities for Lifetime Income

Dr. Pfau—an expert in retirement income research—analyzed the options for a 65-year-old woman looking to generate predictable income. His comparison assumed no inflation adjustments and focused on fixed annual income from various assets.

According to his research, a $1 million annuity could provide guaranteed income of $57,800 per year. By contrast, a 50/50 stock and bond portfolio (assuming a 6% return and 10% standard deviation) would allow for only $47,746 per year if aiming for a 90% chance of the portfolio lasting until age 90.

To match the $57,800 annuity payout with the portfolio, she would need $1.21 million—about 21% more than the annuity required.

Other examples show this income gap clearly. For instance, a 65-year-old who purchases a fixed annuity with $500,000 might receive $32,000 to $35,000 per year for life. The same $500,000 invested in a Treasury or bond ladder might only yield $22,000 to $24,000 annually in today’s interest rate environment—without any longevity guarantee.

Scenario	Fixed Annuity	Bond Strategy
Annual Income from $500K	$32,000–$35,000 (Guaranteed)	$22,000–$24,000 (Market-based)
Income to Age 90 (90% success)	$57,800	$47,746
Portfolio Needed to Match Annuity	$1,000,000	$1,210,000
Income to Age 100 (95% success)	$57,800	$40,394
Portfolio Needed to Match Annuity at Age 100	$1,000,000	$1,430,000
Income with 75% Success to Age 90	$57,800	$60,421

What About Until Age 100?

If she wanted a 95% probability that her income would last until age 100, she could only withdraw $40,394 annually from the portfolio. To replicate the annuity’s $57,800 income at that confidence level, she would need $1.43 million—43% more than the annuity investment.

Fixed annuities offer lifetime payouts—even beyond age 100—without requiring additional capital. Bonds, on the other hand, must be carefully rationed or overfunded to last that long. That can create a financial gap of 30–50% in required assets for the same level of income security.

While a 75% probability target would allow $60,421 from the portfolio, it also means accepting a one-in-four chance of running out of money prematurely. That’s a tradeoff annuities help eliminate.

Don’t Insurance Companies Use Bonds to Support Annuity Policies?

Yes, life insurers use Treasury securities and high-grade bonds to support their guarantees. That often raises a question: if annuities are backed by bonds, why not just invest in bonds directly?

The answer lies in how annuities work. Bonds alone don’t include mortality credits—the income-boosting effect of risk pooling. Annuities price that in, allowing insurers to offer higher income for the same investment.

In 2025, many fixed annuities are producing payout rates of 6.5% to 7.2%, compared to 4.0% to 4.5% from high-quality bond portfolios. This income gap can be significant over time.

Fixed index annuities add another potential advantage. Their growth is tied to index performance (with downside protection), which may allow for even higher payouts than standard fixed annuities.

Feature	Fixed Annuity	Investment-Grade Bonds
Principal Protection	✅ Yes – Backed by insurer guarantees	✅ Yes – If held to maturity
Lifetime Income	✅ Yes – Guaranteed for life	❌ No – Requires careful withdrawals
Mortality Credits	✅ Included in payout calculations	❌ Not available
Yield (2025 Rates)	6.5%–7.2%	4.0%–4.5%

What About Variable Annuities?

Variable annuities differ because the money is invested in mutual fund subaccounts that fluctuate with the market. They carry more risk than fixed or indexed annuities and don’t offer principal protection.

However, many variable annuities include lifetime income riders that provide guaranteed payments regardless of market performance. While most annuities today include this feature, the quality of riders varies across products.

Some income riders offer better terms than others, so it’s important to compare carefully if considering this option.

Can an Annuity Help with Your Retirement Income Goals?

While annuities—especially variable ones—have sometimes drawn criticism due to fees, not all products are created equal. Fee structures and benefits vary by contract, so a clear understanding of what you’re solving for is essential.

When structured appropriately, annuities can provide guaranteed income streams that are difficult to replicate with stocks and bonds—without taking on significant market risk.