Yes, interest income is taxed as ordinary income at your regular tax rate

Interest you earn from savings accounts, money market accounts, certificates of deposit (CDs), bonds, and loans you make to others counts as ordinary income. The IRS taxes it at the same rate as your wages or salary — not at a lower investment rate. This means if you're in the 22% tax bracket, interest income pushes you toward that bracket just like employment income does.

The bank or financial institution that pays you interest will report it to the IRS on a Form 1099-INT if the amount exceeds $10 for the year. You report this same amount on your tax return, whether or not you receive the form. The IRS matches what you report to what the bank reported, so underreporting or omitting interest income creates a mismatch they will catch.

Key Takeaways

  • Interest income is taxed at your ordinary income tax rate, the same rate as your salary or wages.
  • Banks report interest over $10 annually on Form 1099-INT, and you must report the same amount on your tax return.
  • Interest from savings accounts, CDs, bonds, and personal loans all count as ordinary income with no special lower rate.
  • You owe tax on interest even if you don't withdraw it from the account — accrued interest counts in the year it's earned.

Where interest income appears on your tax return

On Form 1040 (the main individual tax return), interest income goes on line 1b under "Income." If you have more than $1,500 in total interest and dividend income combined, you'll also fill out Schedule B, which asks you to list each source of interest separately. The total from Schedule B then transfers to line 1b on Form 1040.

This placement matters because interest income is added to all your other income to calculate your total taxable income. That total determines which tax bracket you fall into. If you earned $50,000 in wages and $2,000 in interest, your taxable income is $52,000, and you pay tax on the full amount at your bracket rate.

How interest income affects your tax bracket

Interest income stacks on top of your other income. If you're close to the edge of a tax bracket, even a few hundred dollars in interest can push you into the next higher bracket. For example, in 2024, the 22% bracket for single filers ends at $47,150. If you earned $47,000 in wages and $500 in interest, your taxable income becomes $47,500, and that extra $500 is taxed at 24% (the next bracket), not 22%.

This "bracket creep" is one reason some people with modest interest income still owe more tax than they expected. The interest itself isn't taxed at a special rate — it's ordinary income that simply adds to your total and may push you higher.

Interest from different sources and how they're taxed

Most interest is taxed the same way, but the source matters for reporting. Savings account interest, CD interest, and money market account interest all come on Form 1099-INT from your bank. Interest from bonds you own directly (not through a fund) also appears on 1099-INT. Interest from Treasury bills, notes, and bonds is reported the same way, though you may receive it on Form 1099-INT or directly from the Treasury.

Interest paid to you by a friend or family member for a personal loan is also ordinary income and should be reported on your return, even though the person who paid it may not send you a form. If you lend money and charge interest, you report that interest as income. If someone lends you money and you pay them interest, that interest is not deductible for most homeowners — it only matters if you borrowed for a specific business or investment purpose.

Interest from bonds held inside a mutual fund or exchange-traded fund (ETF) is handled differently: the fund reports distributions to you, and you report those distributions based on what the fund tells you, not based on the underlying bond interest.

Tax-deferred and tax-free interest accounts

Some accounts let you earn interest without paying tax on it immediately or at all. Interest earned inside a traditional IRA or 401(k) is not taxed while it sits in the account — you pay tax later when you withdraw the money in retirement. Interest earned inside a Roth IRA is never taxed, as long as you follow the withdrawal rules.

Interest from certain U.S. Treasury bonds and municipal bonds may be exempt from federal tax or state tax, depending on the bond type. Municipal bonds issued by your home state are often exempt from both federal and state tax. These exceptions are built into the tax code, so you don't report the interest on your federal return at all — it simply doesn't appear on Form 1040.

If you hold a bond that's exempt from tax, the issuer or your broker will tell you so. Do not report tax-exempt interest on your return, even though the IRS asks you to list it on certain lines for informational purposes only.

What happens if you don't report interest income

The IRS receives a copy of every Form 1099-INT your bank sends to you. Their computers match the amounts on your tax return to the forms they received. If you don't report interest income, the mismatch triggers an automated notice asking you to explain the difference. You'll owe the tax you missed, plus interest on that unpaid tax, and potentially a penalty for underreporting.

Even small amounts add up. If you have $5,000 in a savings account earning 4% annually, that's $200 in interest per year. Over five years without reporting it, you'd owe tax on $1,000 in unreported income, plus interest and penalties. The IRS has no minimum threshold — they pursue mismatches of any size.

Frequently Asked Questions

Do I have to report interest income if it's under $10?

The bank doesn't have to send you a Form 1099-INT if interest is under $10, but you still owe tax on it. Report all interest income on your return, regardless of the amount. The IRS expects you to track and report interest even when no form is issued.

Is interest income taxed differently if I'm retired?

No. Interest is ordinary income at any age. Your tax rate depends on your total income and filing status, not on whether you're retired. Retirees sometimes have lower overall income, which may put them in a lower bracket, but the interest itself is taxed the same way.

What if I earned interest but didn't withdraw it from the account?

You owe tax on interest in the year it's earned, even if you leave it in the account to compound. The IRS taxes accrued interest, not just money you've taken out. This matters most with CDs and bonds — you may owe tax on interest you won't actually receive until the CD matures or bond is sold.

Can I deduct interest I paid on a personal loan?

Not usually. Interest you pay on personal loans, credit cards, or car loans is not deductible. Interest is only deductible if you borrowed money for a business, investment property, or in rare cases, to buy investments. Mortgage interest is deductible only if you itemize deductions and meet other requirements.

Does interest income count toward my standard deduction?

No. Your standard deduction is a fixed amount that reduces your taxable income. Interest income is added to your gross income before the standard deduction is applied. If you earn $15,000 in wages and $1,000 in interest, your gross income is $16,000, and then your standard deduction (about $14,600 for single filers in 2024) is subtracted.