Bonds are interest-bearing assets; stocks are not. When you buy a bond you are lending money, and the payments you receive are contractual interest. When you buy stock you are buying ownership, and any payments you receive are dividends or capital gains. That single distinction drives how the IRS taxes your returns, where you stand if the company fails, and how predictable your income actually is.
What Interest-Bearing Actually Means
An interest-bearing asset is built on a debtor-creditor relationship. You lend money, the borrower agrees in a contract to pay it back with interest, and those payments are owed to you regardless of how the borrower’s business is doing. Miss one, and the borrower is in default. Legal remedies follow.
Equity works on the opposite premise. As a part-owner of a company, you have no contract entitling you to fixed payments. Whatever cash reaches you depends on the company’s performance and the board’s discretion. That is the line between interest and everything else.
Why Bonds Are Interest-Bearing
A bond is a loan. The face value is the principal the issuer promises to return at maturity, and the coupon rate is the annual interest applied to that face value. The coupon payments you receive are interest on the loan you made.
These payments are legally required. The bond indenture, which is the formal contract between issuer and bondholders, sets the payment dates, the rate, and the consequences of nonpayment. A missed interest payment is a default event, and the indenture typically lets bondholders accelerate the debt so the full principal becomes due at once.
Bondholders also outrank shareholders in bankruptcy. Creditors are paid according to a statutory priority order before any money reaches shareholders, and common shareholders often receive nothing. That priority is part of why bonds are treated as lower-risk than stocks.
Zero-Coupon Bonds, TIPS, and Munis
Not every bond looks like the standard coupon-paying bond. A zero-coupon bond is sold at a deep discount, pays nothing along the way, and returns full face value at maturity. The gap between purchase price and maturity value is your interest. Under IRC Section 1272, holders of debt instruments with original issue discount must include a portion of that accrued interest in gross income each year, even though no cash arrives.1Office of the Law Revision Counsel. 26 USC 1272 – Current Inclusion of OID in Income It’s real interest for tax purposes; you just haven’t received it yet.
Treasury Inflation-Protected Securities pay a fixed coupon rate on a principal that adjusts with the Consumer Price Index, so the dollar amount of interest rises with inflation.2TreasuryDirect. TIPS/CPI Data The inflation adjustment to principal is taxable in the year it happens, which produces the same phantom income problem as zero-coupon bonds.
Municipal bonds issued by state and local governments are still interest-bearing, but the interest gets special treatment. Under IRC Section 103, interest on most state and local bonds is excluded from federal gross income, and many states exempt in-state municipal interest from state tax as well.3Office of the Law Revision Counsel. 26 USC 103 – Interest on State and Local Bonds Interest on private activity bonds that aren’t “qualified” is generally taxable, and even qualified private activity bond interest can trigger the federal Alternative Minimum Tax.
Why Stocks Are Not Interest-Bearing
Stock 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. Shares held longer than one year produce long-term capital gains taxed at preferential rates; shares held one year or less produce short-term gains taxed at ordinary income rates.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 slice of after-tax profits to shareholders, that payment is a dividend, not interest. Dividends are discretionary. The board can raise, cut, or eliminate them at any meeting without triggering a default. A dividend cut may hurt the stock price, but no contract has been breached.
Shareholders also sit at the bottom of the capital structure. Every creditor, bondholders included, gets paid before common shareholders in a bankruptcy. That residual claim is the trade-off for the upside: stocks can appreciate far beyond any bond’s coupon, and they can also go to zero.
Preferred Stock: The Common Point of Confusion
Preferred stock pays a fixed dividend at a stated rate on a predictable schedule and sits above common stock in the capital structure. It behaves a lot like a bond, but it isn’t one. The company has no legal obligation to pay preferred dividends, a missed preferred dividend is not a default, and preferred shareholders still stand behind all bondholders and other creditors if the company fails. For tax purposes the payments are dividends, and when the holding-period rules are met they’re taxed as qualified dividends, not as ordinary interest income.
How the Tax Treatment Differs
Whether the IRS classifies your payment as interest or as a qualified dividend controls the rate you pay, and the gap is wide.
Bond interest is taxed as ordinary income. For 2026, federal ordinary income tax rates range from 10% to 37%. Interest is reported to the IRS on Form 1099-INT, and you receive a copy showing the gross amount paid during the year.5Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID
Qualified dividends and long-term capital gains are taxed under IRC Section 1(h) at 0%, 15%, or 20% for 2026, depending on taxable income.6Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed A single filer with taxable income under $49,450 pays zero federal tax on qualified dividends. The 15% rate applies up to $545,500, and 20% applies above that. For married couples filing jointly, the 15% rate starts at $98,900 and 20% starts at $613,700. Dividends are reported on Form 1099-DIV, which separates ordinary dividends from qualified dividends.7Internal Revenue Service. Instructions for Form 1099-DIV
The math is stark. An investor in the 37% bracket who earns $10,000 in corporate bond interest owes $3,700 in federal tax. The same investor earning $10,000 in qualified dividends owes $2,000 at the 20% rate. That’s a $1,700 difference on the same dollar amount, before any additional taxes.
The Net Investment Income Tax
Higher-income investors owe an additional 3.8% Net Investment Income Tax on top of the rates above. It 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 joint filers.8Internal Revenue Service. Topic No. 559, Net Investment Income Tax The surtax hits both types of income. At the top of the brackets, the effective federal rate on bond interest reaches 40.8%, while qualified dividends top out at 23.8%.
Where Investors Get Tripped Up
The IRS receives copies of every 1099-INT and 1099-DIV issued in your name and runs an automated matching program against your return. Underreport interest or dividend income and you’ll likely receive a notice proposing additional tax, plus an accuracy-related penalty.9Internal Revenue Service. Accuracy-Related Penalty
Phantom income is where this goes wrong most often. Zero-coupon bonds and TIPS generate taxable interest each year without sending you any cash. The 1099-OID or 1099-INT still reaches the IRS, and skipping it on your return carries the same consequences as skipping a dividend check you actually deposited. If you hold these instruments in a taxable account, track the annual accrual, or hold them inside an IRA or other tax-deferred account where the yearly inclusion doesn’t matter.
Key Differences at a Glance
- Legal relationship: bonds create a debtor-creditor relationship; stocks create ownership.
- Payment obligation: bond interest is contractual; stock dividends are discretionary.
- Bankruptcy priority: bondholders are paid before shareholders.
- Tax rate: bond interest is ordinary income up to 37%; qualified dividends and long-term capital gains are taxed at 0%, 15%, or 20%.
- Reporting form: interest on Form 1099-INT; dividends on Form 1099-DIV.
- Return ceiling: bond returns are bounded by the coupon and price changes; stock returns are unbounded on the upside and have no floor.
The rule underneath all of this 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 distributions of profit or through appreciation, the return is a dividend or a capital gain, and the asset is not interest-bearing, no matter how steady the payments feel.