Bonds vs. CDs 2026 — Which Is Safer and Which Earns More?

Bonds and certificates of deposit (CDs) are both fixed-income savings tools — you lend money, receive interest, and get your principal back. But they work differently in terms of where you buy them, how they’re protected, how liquid they are, and what rates they offer. As of September 2026, with both CD and Treasury rates in a similar 4%–5% range, choosing between them comes down mainly to taxes, liquidity, and term.

Key takeaway: As of September 2026, Treasury yields are broadly comparable to — and in several terms slightly above — top online bank CD rates. Combined with their state-tax exemption, Treasuries are a genuinely competitive alternative to CDs across most terms, not just for high-tax-state residents.

Bonds vs. CDs: Head-to-Head Comparison (September 2026)

Treasury yields sourced from the Federal Reserve’s H.15 release, data as of September 14, 2026. I-bond composite rate from TreasuryDirect.gov, effective May 1–October 31, 2026. CD rates from Bankrate/CNBC Select/WalletHub surveys published this month. All figures change — verify before acting.

Understanding the Main Bond Types

Treasury Bills, Notes, and Bonds (T-Bills, T-Notes, T-Bonds)

Issued by the US Treasury and backed by the full faith and credit of the US government.

• T-Bills: 4–52 weeks; as of September 2026, the 6-month bill yields approximately 4.07% and the 3-month bill approximately 3.97% (per Fed H.15)
• T-Notes: 2–10 years; the 1-year note yields approximately 4.37%, the 2-year approximately 4.39%, and the 10-year approximately 4.80%
• T-Bonds: 20–30 years; check the current yield at TreasuryDirect.gov or the Fed’s H.15 release, since long-bond yields move independently of shorter maturities

Key benefit: Interest is exempt from state and local income tax. If you’re in a high-tax state (CA, NY, NJ), this makes Treasuries more attractive than the raw rate alone suggests.

Example: A 12-month Treasury yields 4.37% APY. A top 12-month CD yields 4.35% APY. You’re a New York resident with an illustrative 6.5% state income tax rate.

• After-tax Treasury yield: 4.37% (no state tax)
• After-tax CD yield: 4.35% × (1 − 0.065) ≈ 4.07%
• The Treasury wins on both the gross rate and the after-tax rate in this example — recompute with the live rates and your actual bracket before deciding, since the gap between CD and Treasury yields shifts regularly.

I-Bonds (Series I Savings Bonds)

I-Bonds are inflation-protected savings bonds issued by the US Treasury.

• Composite rate resets every 6 months, combining a fixed rate (set at purchase, constant for the bond’s life) and an inflation-adjusted rate (based on CPI-U)
• Current composite rate: 4.26% (0.90% fixed rate + inflation component), effective for bonds issued May 1, 2026 through October 31, 2026 — check TreasuryDirect.gov for the rate in effect when you buy, since it resets each May and November
• Maximum purchase: $10,000 per person per year (plus up to $5,000 via IRS tax refund)
• Must hold for at least 12 months; penalty of 3 months’ interest if redeemed before 5 years
• Best use case: Long-term inflation protection, not short-term savings

Corporate Bonds

Issued by companies to raise capital. Rated from investment-grade (AAA–BBB) to junk (BB and below).

• Typically higher yields than government bonds, but carry credit risk that varies by issuer and rating
• Corporate bonds held in a brokerage account can be sold before maturity (at market price)
• Not suitable as a CD replacement for most everyday savers — the additional complexity and credit risk aren’t warranted unless you’re building a bond ladder in a brokerage account

When to Choose CDs Over Bonds

• You want a simple process (open at your bank online) without a brokerage account
• You want FDIC protection specifically, rather than direct government-backed Treasury securities
• You don’t need liquidity before maturity and prefer a fixed, predictable penalty structure over secondary-market price risk
• A specific bank’s promotional or credit-union CD rate genuinely beats the comparable Treasury yield after tax — check both before assuming

When to Choose Bonds Over CDs

• You’re in a high state-tax state (bond interest is state-tax-exempt)
• You need liquidity — Treasuries can be sold at any time in the secondary market (though the sale price may be above or below face value)
• You want inflation protection (I-Bonds)
• You have a long time horizon (10+ year bonds)
• You’re building a portfolio within a brokerage account (Treasury ETFs, bond funds)
• As of September 2026, you want the potentially higher gross yield — Treasuries across several terms currently yield as much as or more than top CDs

Tax Treatment: A Critical Difference

If you’re in a state with no income tax (FL, TX, WA, etc.), this difference doesn’t matter. If you’re in California, New York, or another high-tax state, the state-tax exemption on Treasuries can meaningfully increase after-tax yield — recompute using your actual state bracket and the live Treasury and CD rates.

Related Resources

• CD Rates and Guide — all CD types
• CDs vs. Treasury Bills — detailed T-bill comparison
• CD Rate Forecast 2026 — where rates are headed
• 1-Year CD Rates 2026

Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.