Fixed income is not the same as bonds. Bonds are one type of fixed-income investment, but the category is broader: it also covers certificates of deposit, preferred stock, fixed annuities, and money market instruments. Every bond is a fixed-income security; not every fixed-income security is a bond.
SEC regulations define a fixed-income security as an instrument that entitles the holder to a stated principal amount, interest calculated at a fixed or formula-based rate, or a combination of both.1eCFR. 17 CFR 270.3a-7 – Issuers of Asset-Backed Securities Bonds fit that definition, but so do several other products. When financial professionals say “fixed income,” they’re describing a cash-flow profile — regular, contractually required payments — rather than a single product.
Fixed-Income Investments That Are Not Bonds
You could build an entire fixed-income portfolio without holding a single bond. The instruments below all pay scheduled returns, and each sits under a different regulator or tax rule than a bond does.
- Certificates of deposit. Bank-issued products where you deposit money for a set term, typically three months to five years, in exchange for a higher rate than a standard savings account. CDs at FDIC-insured banks carry deposit insurance up to $250,000 per depositor, per bank, for each ownership category. Withdrawing early usually triggers a penalty, often several months of interest depending on the term.2FDIC. Shopping for a Certificate of Deposit3FDIC. Your Insured Deposits
- Money market instruments. Short-term debt such as commercial paper and Treasury bills, managed for high liquidity and capital preservation rather than high returns. These typically mature in less than a year.
- Preferred stock. A hybrid that sits between bonds and common stock. Preferred shareholders receive fixed dividend payments before any dividends go to common shareholders. Preferred dividends that meet holding-period requirements may qualify for the lower qualified-dividend tax rate rather than being taxed as ordinary income.
- Fixed annuities. Insurance contracts guaranteeing a set rate of return over a specified period. Fixed annuities are regulated by state insurance commissioners rather than federal securities regulators. Variable and registered index-linked annuities are subject to both state insurance and federal securities regulation.4FINRA. Annuities
You can also get fixed-income exposure through bond mutual funds and ETFs, which pool money to buy a diversified portfolio of debt instruments. These funds don’t have a fixed maturity date, because the manager continuously buys and sells holdings. Your experience with interest rate changes and income may differ from holding a single bond to maturity.
The Kinds of Bonds Inside the Category
Bonds themselves come in several forms, each with a different issuer and tax treatment.
- Treasury securities. Issued by the U.S. federal government and backed by its full faith and credit. Bills run one year or less, notes run two to ten years, and bonds run longer than ten. Interest is subject to federal income tax but exempt from state and local taxes.5Office of the Law Revision Counsel. 31 U.S. Code 3124 – Exemption From Taxation
- Municipal bonds. Issued by state and local governments to fund public projects. Interest on most municipal bonds is excluded from federal income tax, and if you live in the issuing state, the interest may also be exempt from state income tax.6Office of the Law Revision Counsel. 26 U.S. Code 103 – Interest on State and Local Bonds
- Corporate bonds. Issued by companies to raise capital. They typically offer higher yields than government bonds to compensate for added credit risk. Interest is fully taxable as ordinary income at both federal and state levels.7eCFR. 26 CFR 1.61-7 – Interest
Why the Distinction Matters
The label “fixed income” tells you the cash flow is scheduled. It doesn’t tell you who’s on the hook, who’s watching them, or how the IRS will treat the money you receive. Two products that both pay you a steady 4 percent can produce very different after-tax, after-risk results.
Different Regulators, Different Protections
A corporate bond is a securities product under SEC oversight. A CD is a bank deposit protected by FDIC insurance up to the coverage limits.8FDIC. Understanding Deposit Insurance A fixed annuity is an insurance contract regulated by your state.4FINRA. Annuities If the issuer fails, the recourse you have depends entirely on which of those three buckets your investment sits in. Disclosure requirements also diverge. Under Securities Act regulations, a registration statement for a fixed-income offering must include the final maturity, interest rate provisions, and yield — details that don’t apply to stock offerings.9eCFR. Part 230 General Rules and Regulations, Securities Act of 1933
Tax Treatment Splits by Instrument
Interest from corporate bonds is taxed as ordinary income at both federal and state levels.7eCFR. 26 CFR 1.61-7 – Interest CD interest gets the same treatment, fully taxable at every level. Municipal bond interest is generally excluded from federal income tax, with exceptions for certain private activity bonds and arbitrage bonds.6Office of the Law Revision Counsel. 26 U.S. Code 103 – Interest on State and Local Bonds Because of that exclusion, a municipal bond yielding less on paper can deliver more after-tax income than a higher-yielding corporate bond, depending on your bracket. Treasury interest is federally taxable but exempt from state and local tax.5Office of the Law Revision Counsel. 31 U.S. Code 3124 – Exemption From Taxation Savings bonds used to pay qualified higher education expenses may qualify for a federal interest exclusion.10TreasuryDirect. I Bonds Preferred dividends meeting holding-period rules are taxed at the qualified-dividend rate, not as ordinary income, which can make preferred shares more tax-efficient than bonds paying comparable yields.
What All Fixed-Income Investments Have in Common
Different as they are, fixed-income products share three structural pieces defined by the contract between issuer and investor.
- Coupon. The interest payment you receive on a regular schedule, usually semiannually for bonds. For traditional fixed-rate instruments, the coupon rate is set at issuance and stays constant.
- Principal, or face value. The amount the issuer promises to return at maturity. Most bonds carry a face value of $1,000.
- Maturity date. The date when the issuer must repay principal. Maturities range from days for Treasury bills to 30 years or more for long-term bonds. A set maturity date is what separates most fixed-income instruments from perpetual securities.
Those three elements are why the category holds together. Whether you’re holding a five-year CD, a municipal bond, or a preferred share, you know the payment amount, the payment schedule, and, in most cases, when the arrangement ends. What varies is who is paying you, who is regulating them, and how much of what they pay you actually gets to keep.