Bonds are interest-bearing assets. Stocks are not. A bond is a loan, and the payments you receive are interest on that loan; a stock is a piece of ownership in a company, and any payments you receive are dividends or capital gains. That single distinction changes how your return is taxed, where you stand if the issuer goes bankrupt, and how predictable your cash flow is.
What Makes an Asset Interest-Bearing
An interest-bearing asset is built on a debtor-creditor relationship. You lend money, and the borrower is contractually required to pay you back with interest. That obligation is the defining feature. The borrower owes those payments whether the business is profitable or not, and missing one triggers legal remedies spelled out in the contract.
Equity works on a different footing. When you buy stock, you become a part-owner. The company owes you no fixed payment on any schedule. Anything you receive depends on how the company performs and what its board decides to do with the profits.
Why Bonds Are Interest-Bearing
When you buy a bond, you’re lending money to the issuer, whether that’s a corporation, a city, or the federal government. The face value is the principal the issuer promises to return at maturity. The coupon rate is the annual interest rate applied to that face value, and the resulting coupon payments are your interest for making the loan.
These payments are legally required. The bond indenture, the formal contract between the issuer and bondholders, sets the payment dates, the interest rate, and the consequences of nonpayment. A missed interest payment is a default event, and the indenture typically lets bondholders accelerate the debt, making the full principal immediately due.
Bondholders also sit above shareholders in the capital structure. If the issuer files for bankruptcy, creditors are paid in a statutory priority order before any money reaches shareholders: secured creditors first, then unsecured creditors, then preferred shareholders, then common shareholders, who often receive nothing. That priority is a large part of why bonds carry less risk than the stock of the same company.
Bonds That Don’t Pay Cash Interest Are Still Interest-Bearing
Not every bond mails you a check twice a year, but the tax code still treats the return as interest.
Zero-coupon bonds are sold at a steep discount and pay nothing until maturity, when you receive the full face value. The difference between what you paid and what you receive is interest. Under IRC Section 1272, holders of debt instruments with original issue discount must include a portion of the accrued interest in gross income each year, even though no cash has changed hands.1Office of the Law Revision Counsel. 26 USC 1272 – Current Inclusion of OID in Income That’s phantom income: taxable interest you haven’t actually received.
Treasury Inflation-Protected Securities work the same way for part of their return. The coupon rate is fixed, but the principal adjusts with the Consumer Price Index, and each semiannual interest payment applies the fixed rate to the inflation-adjusted principal.2TreasuryDirect. TIPS/CPI Data The inflation adjustment to your principal is taxable in the year it happens, even though you don’t receive that money until maturity. Many investors hold TIPS in tax-advantaged accounts for that reason.
Municipal bonds issued by state and local governments are also interest-bearing, but with a tax break. Under IRC Section 103, interest on most state and local bonds is excluded from federal gross income.3Office of the Law Revision Counsel. 26 USC 103 – Interest on State and Local Bonds Many states exempt in-state bond interest from state tax as well. Interest on private activity bonds that aren’t classified as qualified bonds is generally taxable, and even qualified private activity bond interest can trigger the federal Alternative Minimum Tax.
Why Stocks Are Not Interest-Bearing
Buying stock means buying ownership, not lending money. The company has no contractual obligation to pay shareholders anything on any schedule. Returns come from two sources, and neither is interest.
The first is capital gains. Sell a share for more than you paid, and the profit is a capital gain. Gains on shares held longer than a year are long-term and taxed at preferential rates; gains on shares held a year or less are short-term and taxed as ordinary income.4Office of the Law Revision Counsel. 26 USC 1222 – Other Terms Relating to Capital Gains and Losses
The second is dividends. When a company distributes a portion of its after-tax profits to shareholders, that payment is a dividend. Dividends are entirely discretionary. The board can raise, cut, or eliminate the dividend at any meeting, and no default occurs. A company that stops paying dividends may see its stock price fall, but it hasn’t breached any legal obligation.
Shareholders also hold the residual claim in bankruptcy. Every creditor, including every bondholder, gets paid before common shareholders receive anything. That’s the trade-off for the upside: stock can appreciate far beyond what any bond will pay, but it can also go to zero.
Preferred Stock Looks Like a Bond but Isn’t
Preferred stock blurs the line. It typically pays a fixed dividend at a stated rate on a predictable schedule and sits above common stock in the capital structure. Even so, it’s equity. The company has no legal obligation to pay those dividends, a missed preferred dividend is not a default, and preferred shareholders stand behind all bondholders and other creditors if the company fails. For tax purposes, preferred dividends that meet the holding-period rules are taxed as qualified dividends, not as interest.
How the Tax Treatment Differs
The classification of your investment income as interest or as a qualified dividend drives a substantial tax difference.
Bond interest is taxed as ordinary income. For 2026, federal ordinary income tax rates run from 10% to 37%. A bondholder in the top bracket pays 37 cents of federal tax on every dollar of interest. The payer reports the amount to the IRS on Form 1099-INT, and you receive a copy.5Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID
Qualified dividends and long-term capital gains get preferential treatment under IRC Section 1(h). For 2026, the rates are 0%, 15%, or 20%, based on your taxable income.6Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed Dividends are reported on Form 1099-DIV, which separates ordinary dividends from qualified dividends in different boxes.7Internal Revenue Service. Instructions for Form 1099-DIV A top-bracket investor pays 37% on bond interest and no more than 20% on the same dollar of qualified dividends.
The 3.8% Net Investment Income Tax
Higher-income investors face an additional 3.8% Net Investment Income Tax on top of those rates. The surtax applies to interest, dividends, capital gains, and most other investment income when modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly.8Internal Revenue Service. Topic No. 559, Net Investment Income Tax The NIIT hits interest and dividends alike. For a top-bracket investor, the effective federal rate reaches 40.8% on bond interest and 23.8% on qualified dividends.
Reporting and Penalties
The IRS receives a copy of every 1099-INT and 1099-DIV issued in your name and runs automated matching against your return. Underreport interest or dividend income and you can expect a notice proposing additional tax, plus a possible accuracy-related penalty of 20% of the underpaid amount.9Internal Revenue Service. Accuracy-Related Penalty
Phantom income from zero-coupon bonds and TIPS is where taxpayers slip up most often. No cash arrives, so the income is easy to forget, but the 1099-OID or 1099-INT still lands at the IRS. If you hold these instruments in a taxable account, track your accrual each year, or consider moving them into an IRA or other tax-deferred account.
Stocks and Bonds Side by Side
- Legal relationship: bonds create a debtor-creditor relationship; stocks create an ownership relationship.
- Payment obligation: bond interest is mandatory and contractual; stock dividends are discretionary.
- Bankruptcy priority: bondholders are paid before shareholders.
- Tax treatment: bond interest is taxed as ordinary income at rates up to 37%; qualified dividends are taxed at 0%, 15%, or 20%.
- Reporting: interest income appears on Form 1099-INT; dividends appear on Form 1099-DIV.
- Return potential: bond returns are capped by the coupon rate and price movement; stock returns have no ceiling and no floor.
The rule is structural. If you’re being paid for lending money, the return is interest and the asset is interest-bearing. If you’re being paid as an owner, through profit distributions or appreciation, the return is a dividend or capital gain, and the asset is not interest-bearing, no matter how predictable the payments feel.