10-Year Treasury Yields at 4.25%: How Much Are Your Bonds Really Earning?
The 10-year US Treasury yield sits at 4.25% in March 2026 — down from the 5.0% October 2023 peak but still offering the best real yields (nominal minus inflation) in over 15 years at ~1.45% above CPI. With the Federal Reserve cutting from 5.25-5.50% to 4.50-4.75% and the yield curve re-steepening after its historic inversion, bond investors face a pivotal question: lock in 4.25% for a decade, or wait for higher yields? This calculator gives you the exact income, price sensitivity, and real return numbers to make that call.
About This Calculator: 10-Year Treasury Yield
Why: With $26 trillion in publicly held Treasuries outstanding and yields at 15-year real highs, millions of retirees, pension funds, and individual investors are re-evaluating fixed income. The key questions — How much income will I earn? What happens to my price if yields rise further? Am I beating inflation? — are precisely what this calculator answers.
How: Enter your investment amount, current and purchase yield, face value, coupon rate, and years to maturity. The calculator computes annual coupon income, bond fair price, price sensitivity to yield changes, real yield, inflation-adjusted income, duration risk, and total return to maturity.
📋 Quick Examples — Click to Load
📊 Annual Income: Nominal vs Inflation-Adjusted
Your coupon income, real purchasing-power income after 2.8% CPI, and the inflation erosion amount
🔍 Return Components
Breakdown of total return: coupon income vs price appreciation/loss component
⚖️ Fixed Income Yield Comparison
How the 10-year Treasury yield stacks up vs other fixed income and cash alternatives
📈 US Treasury Yield Curve (March 2026)
Current yield curve from 1-month T-bills to 30-year bonds — re-steepening after historic inversion
📋 Treasury Investor Quick Reference (March 2026)
Yield Benchmarks
• 10yr Treasury: 4.25% nominal / ~1.45% real
• 30yr Treasury: 4.50% — best for locking in long-term income
• 2yr Treasury: 4.35% — still inverted vs 10yr (rare re-steepen)
• 3-month T-bill: 5.20% — highest short-term cash yield
Key Dates & Tax Rules
• Treasury auctions: 2yr (monthly), 10yr (monthly), 30yr (quarterly)
• Interest: semi-annual, federal taxable, state & local exempt
• TIPS: real yield 1.80% + CPI adjustment each year
• TreasuryDirect.gov: $100 minimum, zero commission
Duration Rules of Thumb
• 10yr Treasury: ~8.5yr duration → 1% yield rise = -8.5% price
• 30yr Treasury: ~18yr duration → 1% yield rise = -18% price
• 2yr T-Note: ~1.9yr duration → nearly immune to rate moves
• T-bills (<1yr): near-zero duration, no price risk
When to Buy Treasuries
• After: yield spikes on CPI or jobs surprises — buy the fear
• When: real yield turns positive (>0%) after inflation adjustment
• For: recession protection — Treasuries rally as stocks fall
• Avoid: if Fed is raising rates — prices will fall further
⚠️For educational and informational purposes only. Verify with a qualified professional.
The 10-year US Treasury yield sits at 4.25% in March 2026 — still well above the near-zero rates of 2020-2021 but down from the 5.0% cycle peak in October 2023. With the Federal Reserve cutting rates from 5.25-5.50% to 4.50-4.75% and CPI at 2.8%, real yields are genuinely positive at ~1.45% — the most attractive Treasury valuations in 15 years. This calculator helps you compute exactly how much income your Treasury investment generates, how yield changes affect your bond price, and what your true inflation-adjusted return is.
Sources: US Treasury Department, Federal Reserve, Bureau of Labor Statistics, FRED (St. Louis Fed).
Key Takeaways
- • The 10-year Treasury at 4.25% offers the best real yield in 15 years at ~1.45% above CPI of 2.8%
- • Bond prices and yields move inversely: a 1% yield rise on a 10-year bond causes approximately an 8.5% price decline (duration risk)
- • US Treasury interest is subject to federal income tax but exempt from all state and local taxes — a key advantage for high-state-tax residents
- • The yield curve is re-steepening after its historic 2022-2023 inversion — a sign of normalizing monetary conditions
- • TreasuryDirect.gov allows direct purchase of T-bills, notes, bonds, and I-Bonds with no broker fee or commission
Did You Know?
How Treasury Yield Calculations Work
Bond Price (Present Value)
The fair price of a coupon bond = sum of discounted coupon payments + discounted face value. Bond Price = Σ [Coupon / (1+y)^t] + Face / (1+y)^n, where y = current yield and n = years to maturity. When y equals the coupon rate, the bond trades at par (face value = price).
Duration and Price Sensitivity
Modified Duration = Macaulay Duration / (1 + yield). For a 10-year Treasury with 4.25% coupon at par, modified duration ≈ 8.5. Price Change % ≈ -8.5 × (change in yield). So a 1% rise in yields causes approximately an 8.5% price fall.
Real Yield
Real Yield ≈ Nominal Yield - CPI Inflation. At 4.25% nominal and 2.8% CPI, the real yield is ~1.45%. The TIPS market provides a direct market price for real yields (currently ~1.8% for 10-year TIPS), slightly above the simple Fisher equation estimate.
Expert Tips for Treasury Investors
US Fixed Income Asset Comparison (March 2026)
| Asset | Yield/Rate | Real Yield | Duration Risk | Tax Treatment |
|---|---|---|---|---|
| 3-Month T-Bill | 5.20% | 2.4% | Near zero | Fed taxable, state exempt |
| 2-Year Treasury Note | 4.35% | 1.55% | Low (~1.9 yr) | Fed taxable, state exempt |
| 10-Year Treasury Note | 4.25% | 1.45% | Medium (~8.5 yr) | Fed taxable, state exempt |
| 30-Year Treasury Bond | 4.50% | 1.7% | High (~18 yr) | Fed taxable, state exempt |
| TIPS 10-Year | 1.80% real | +1.8% + CPI | Medium (~8 yr) | Fed taxable on accrual |
| I-Bonds | 3.2% (composite) | 0.4% real | None (non-tradable) | Deferred fed, state exempt |
| AAA Corporate Bond | 5.1% | 2.3% | Medium-High | Fully taxable |
Frequently Asked Questions
What is the 10-year Treasury yield in March 2026?
The 10-year US Treasury yield is approximately 4.25% in March 2026, having declined from its October 2023 peak of 5.0% as the Federal Reserve has begun easing its benchmark rate from 5.25-5.50% to 4.50-4.75%. Treasury yields move inversely to bond prices — when yields rise, existing bond prices fall, and vice versa.
How do rising Treasury yields affect bond prices?
Bond prices and yields move in opposite directions. When the 10-year yield rises from 4.0% to 5.0%, the price of an existing 10-year Treasury falls by approximately 8-9% (duration effect). The formula is: Price Change % ≈ -Duration × (Yield Change) / (1 + Yield). A 10-year Treasury has a modified duration of roughly 8.5 years, making it sensitive to rate movements.
What is the real yield on the 10-year Treasury?
The real yield is the nominal yield minus the inflation rate. With the 10-year nominal yield at 4.25% and CPI at 2.8% (March 2026), the real yield is approximately 1.45%. The TIPS (Treasury Inflation-Protected Securities) market prices the 10-year real yield at ~1.8% in March 2026, making Treasuries genuinely attractive compared to the near-zero real yields of 2020-2021.
How much annual income does a $100,000 Treasury investment generate?
A $100,000 investment in a new 10-year Treasury at 4.25% coupon generates $4,250 per year in interest income ($2,125 every 6 months), paid semi-annually. If held to maturity, you receive all coupon payments plus the $100,000 face value back. US Treasury interest is subject to federal income tax but exempt from state and local taxes.
What is the yield curve and why does it matter?
The yield curve plots Treasury yields across maturities — from 1-month to 30-year. A normal upward-sloping curve (short rates < long rates) indicates healthy economic expectations. An inverted curve (short rates > long rates) has preceded every US recession since 1955. In March 2026, the curve is re-steepening after the historic 2022-2023 inversion — a sign of economic normalization.
What is bond duration and why does it affect interest rate risk?
Duration measures a bond's sensitivity to interest rate changes. A 10-year Treasury has a modified duration of ~8.5 years, meaning a 1% rise in yields causes approximately an 8.5% price decline. A 30-year Treasury has duration ~18 years — much more rate-sensitive. Short-term T-bills (3-month) have near-zero duration, making them nearly risk-free from a price perspective.
Key Treasury Market Statistics
Official Data Sources
Disclaimer: This calculator uses approximate Treasury yield data as of March 2026 and simplified duration models. Actual bond pricing requires full discounted cash flow analysis. Tax treatment varies by account type (taxable vs. IRA/401k) and investor jurisdiction. CPI data may not reflect your personal inflation rate. Past yield levels do not predict future yields. This is not financial advice — consult a registered investment advisor for personalized bond investment recommendations.
Step-by-Step: Bond Calculation Walkthrough
Scenario: $100,000 invested in 10-year Treasury at 4.25% coupon. If yields then drop 1% to 3.25%, what happens?
Federal Funds Rate and 10-Year Treasury: Key Historical Moments
The 10-year yield has averaged 4.2% since 1962 — making the current 4.25% almost exactly the long-run historical average.
When Do Bonds Beat Stocks? Historical Context
Treasuries have historically outperformed stocks in 3 scenarios:
How to Buy US Treasury Bonds in 2026
Treasury Bond Tax Treatment by Account Type
| Account Type | Federal Tax | State Tax | Best For |
|---|---|---|---|
| Taxable Brokerage | Ordinary income rate | Exempt | High-tax-state investors (vs munis) |
| Traditional IRA / 401(k) | Ordinary income at withdrawal | Varies | Tax-deferred growth; lower tax bracket in retirement |
| Roth IRA | Tax-free (after 59.5) | Tax-free | Best long-term option if in 22%+ bracket now |
| 529 College Savings | Tax-free for education | State deduction often available | Conservative allocation within 529 |
A key Treasury advantage: coupon income is completely exempt from state and local income taxes. For a New York City investor in the top 10.9% state + 3.876% city bracket (combined ~14.8%), a 4.25% Treasury effectively yields ~4.25% on a tax-adjusted basis vs a 4.25% corporate bond yielding only ~3.62% after state/city tax.
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