The 4% rule is the most repeated retirement guideline in personal finance. Take a portfolio balance, multiply by 4%, and that is the amount you can withdraw in the first year without running out of money over roughly three decades. On a $500,000 portfolio, that produces $20,000 a year, or about $1,667 a month.
It is a probabilistic answer derived from stock and bond returns dating back to 1926, and it assumes a diversified portfolio, market cooperation, and the retiree’s willingness to maintain steady spending through downturns.
A Treasury Inflation-Protected Securities ladder does something different. Instead of drawing a percentage from a portfolio each year, the retiree buys individual TIPS that mature in each year of retirement. Every rung pays a principal amount adjusted for inflation, plus a real coupon along the way.
With real yields on TIPS currently running 2.17% at 5 years, 2.43% at 10 years, 2.78% at 20 years, and 2.99% at 30 years, a $500,000 ladder engineered to spend down over 25 years produces roughly $2,340 a month in inflation-adjusted income, and the payment is contractually guaranteed by the U.S. Treasury.
Why the Ladder Pays More
The 4% rule and the TIPS ladder answer two different questions. The 4% rule tries to preserve principal across a 30-year retirement while riding out market volatility. A TIPS ladder consumes principal on a defined schedule. Each maturing bond returns its inflation-adjusted face value, which the retiree spends. There is no leftover portfolio at the end, and there is no market risk along the way. Trading the terminal balance for certainty is what unlocks the higher monthly number.
The current environment makes that trade unusually attractive. The 10-year Treasury yield sits at 4.75% as of July 31, 2026, near the top of its 12-month range. Real yields have moved in parallel.
For most of the 2010s, the 10-year TIPS real yield was near zero or negative, which meant a ladder locked in almost no purchasing-power growth. At current real yields, the same $500,000 buys meaningfully more guaranteed monthly income than it would have a few years ago.
What $2,340 Actually Covers
The Bureau of Labor Statistics puts the average annual household expenditure at $78,535 in 2024, or roughly $6,545 per month. Neither the 4% rule’s $1,667 nor the ladder’s $2,340 covers that alone. Both are designed to sit alongside Social Security.
The 2026 Social Security cost-of-living adjustment came in at 2.8%, and Social Security transfer receipts totaled $1,646.7 billion in the second quarter of 2026, underscoring how central the program is to household retirement math. The TIPS ladder’s advantage is that its payments rise with the same CPI that drives Social Security’s annual adjustment, so the two income streams move together.
Why Almost Nobody Builds One
TIPS ladders are unpopular for structural reasons more than for analytical ones. Buying 25 or 30 individual securities across staggered maturities is operationally awkward. Most brokerages do support it, though they rarely default users toward that approach. TIPS funds are easier to buy and readily available, but they lack the fixed payment certainty of a held-to-maturity ladder because share prices move with interest rates.
The behavioral side matters too, as a ladder intentionally ends with a zero balance, and for savers who spent decades watching a portfolio grow, converting that balance into a self-liquidating income stream can feel like giving something up, even when the monthly payment is higher and the risk is lower. The personal savings rate dropped to 2.8% in the second quarter of 2026, down from 4.4% a year earlier, which suggests households are already stretched. In that environment, guaranteed income tends to become more appealing. Other options sit between these two approaches.
The current I-Bond composite rate is 4.26%, combining a 0.9% fixed rate with a 1.67% semiannual inflation adjustment, offering a partial inflation hedge with an annual purchase cap. The national average 12-month CD rate is 1.68%, which pays a nominal yield that sits well below current inflation readings.
The Bottom Line
The 4% rule and the TIPS ladder answer different questions. The rule optimizes for legacy and flexibility. The ladder optimizes for certainty and higher current income. At today’s real yields, the ladder produces a higher monthly income on the same $500,000, in exchange for accepting a defined end date. Most retirees do not build one because the product is inconvenient to assemble, and the psychology of drawing a balance to zero runs against every instinct that saves and builds.
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