Are Treasury bonds inflation-proof?

Standard Treasury bonds are NOT inflation-protected — they pay fixed nominal interest and return fixed nominal principal. In high-inflation environments, they produce negative real returns. TIPS (Treasury Inflation-Protected Securities) ARE inflation-adjusted — the principal increases with CPI. When choosing between the two, compare the TIPS real yield to the nominal Treasury yield minus expected inflation.

Should retirees avoid bonds in inflationary environments?

Not eliminate bonds, but reduce them and shift composition. In high-inflation environments: reduce long-duration bonds (most rate-sensitive), increase TIPS allocation, maintain short-duration bonds or T-bills for liquidity, and slightly increase stock allocation for inflation-beating long-term return. A common adjustment: 60/40 portfolio shifts to 50/30/20 (stocks/TIPS/short bonds) during high-inflation periods.

What is the 'real yield' on TIPS?

TIPS quote a 'real yield' — the return above CPI inflation. In 2025, 10-year TIPS real yields are approximately 1.8–2.0%. This means buying TIPS guarantees your purchasing power grows by 1.8–2.0% annually above inflation — regardless of what inflation turns out to be. This is a valuable guarantee during uncertain inflation periods.

Are I-bonds better than TIPS for inflation protection?

I-bonds provide similar inflation adjustment (CPI-based) but have advantages (no market price risk, state-tax-exempt, $10K annual limit) and disadvantages ($10K limit is binding, 1-year lock-up, 5-year penalty). TIPS trade on markets (price fluctuates with real yields), have no purchase limit, and are available in shorter or longer maturities. For most investors: I-bonds for first $10K of inflation protection, then TIPS for larger allocations.

How long should a bond CD or annuity run before it’s fully at risk from inflation?

The longer the term, the greater the inflation risk. A 1-year CD at 5% with 3% inflation produces a positive 1.94% real return. A 30-year bond at 4.5% that locks in rates while inflation averages 4% over 30 years produces only 0.48% real return — barely positive. And if inflation averages 5%, it loses ground. Duration is the primary inflation risk variable for fixed-income investments.

How Inflation Destroys Fixed-Income Investments: Bonds, Annuities, and CDs

The phrase 'risk-free' investment is a misnomer when inflation is considered. Government bonds, corporate bonds, annuities, and CDs all promise nominal return of principal and interest — but inflation erodes the real purchasing power of both. The 2022 bond market crash (bonds fell 13%+ while inflation hit 9%) was a reminder that 'safe' fixed-income investments carry real inflation risk.

Real Returns on Fixed-Income Investments at Various Inflation Rates

Real returns on fixed-income investments at various inflation scenarios

Investment	Nominal Rate	At 2% Inflation	At 4% Inflation	At 7% Inflation
30-year Treasury bond	4.5%	+2.45% real	+0.48% real	−2.34% real
10-year Treasury	4.25%	+2.21% real	+0.24% real	−2.57% real
5-year CD	4.50%	+2.45% real	+0.48% real	−2.34% real
Fixed annuity (5%)	5.0%	+2.94% real	+0.96% real	−1.87% real
Money market (4.75%)	4.75%	+2.70% real	+0.72% real	−2.10% real
TIPS (1.2% + CPI)	1.2% + CPI adj.	+1.2% real	+1.2% real	+1.2% real

Why 2022 Was Catastrophic for Bonds

Bond prices move inversely to interest rates. When the Fed raised rates from 0% to 4.5% in 2022, existing bonds with lower coupons became less valuable. The Bloomberg U.S. Aggregate Bond Index fell 13% nominally in 2022. With 7%+ inflation, the real return for bonds in 2022 was approximately −20%. This was the worst year for bonds in modern U.S. history.

⚠️Fixed Annuities: Locked-In Nominal Payments

A fixed annuity paying $3,000/month seems secure. But at 3% inflation, that $3,000 buys 26% less in 10 years and 45% less in 20 years. A retiree on a fixed annuity with no COLA provision experiences a relentless real income decline. After 25 years, the fixed annuity payment has roughly half its original purchasing power.

Strategies to Protect Fixed-Income Portfolios from Inflation

TIPS: principal adjusts with CPI; real return is guaranteed (currently ~1.5–2.0% real)
Short-duration bonds: less price sensitivity to rate changes; reinvest at higher rates as they mature
Floating-rate bonds: coupon adjusts with short-term rates; limited inflation protection but reduces rate risk
Series I savings bonds: rate adjusts with CPI every 6 months; state-tax-exempt, but limited to $10,000/yr
TIPS ladder: purchase TIPS maturing at future dates corresponding to income needs

Calculate the Real Return on Any Fixed-Income Investment

Enter the nominal rate and inflation assumption to find the real purchasing power return.

Open Inflation Calculator →

How Inflation Destroys Fixed-Income Investments: Bonds, Annuities, and CDs

Real Returns on Fixed-Income Investments at Various Inflation Rates

Why 2022 Was Catastrophic for Bonds

Strategies to Protect Fixed-Income Portfolios from Inflation

Frequently Asked Questions

Frequently Asked Questions

More Inflation Guides

How to Use the Inflation Calculator: Complete Guide to Adjusting Dollar Amounts

Step-by-Step: How to Adjust Your Salary for Inflation to See Your Real Pay Change

6 Common Mistakes People Make When Thinking About Inflation