Interest income is taxed as ordinary income at your regular tax rate

Yes. Interest you earn on savings accounts, money market accounts, certificates of deposit (CDs), bonds, and loans you make to others is taxed as ordinary income. That means it's added to your wages, self-employment income, and other earnings, and taxed at whatever rate applies to your total income for the year.

The bank or financial institution that pays you interest will report it to you and to the IRS on a Form 1099-INT if the amount is $10 or more in a calendar year. You report this income on your tax return even if you don't receive a 1099-INT — the IRS knows about it anyway.

The tax you owe depends on your total income and filing status, not on the source of the interest. A person in the 22% tax bracket pays 22% on interest income just as they do on wages. Someone in the 37% bracket pays 37% on interest. This is different from capital gains, which may be taxed at lower rates.

Key Takeaways

  • Interest from savings accounts, CDs, bonds, and other loans is reported on Form 1099-INT and taxed at your ordinary income tax rate.
  • You owe tax on interest even if the amount is small or if you reinvest it rather than withdraw it.
  • Interest earned in tax-advantaged retirement accounts like IRAs and 401(k)s is not taxed in the year it's earned, though withdrawals may be taxed later.
  • Municipal bonds issued by states and local governments often pay interest that is exempt from federal income tax, though you may still owe state tax.
  • The IRS requires financial institutions to report interest of $10 or more, but you must report all interest income on your tax return.

How the IRS knows about your interest income

Banks, credit unions, investment firms, and other financial institutions send a Form 1099-INT to you and file a copy with the IRS. This form shows the interest you earned during the calendar year. The IRS uses this information to match against your tax return, so reporting it correctly is important.

If you earned less than $10 in interest from a single source, that institution may not send you a 1099-INT, but you still owe tax on it. The IRS expects you to report all interest income, regardless of whether you receive a form. If you have multiple accounts at different banks, each one reports separately, and you add them all together on your return.

Interest is reported on Schedule 1 (Form 1040) or directly on Form 1040 itself, depending on the year and your filing situation. Your tax software or tax preparer will ask you about interest income and place it in the correct location.

Interest in retirement accounts versus taxable accounts

Interest earned inside a traditional IRA, Roth IRA, 401(k), or other may have access to retirement account is not taxed in the year it's earned. The interest compounds tax-free until you withdraw money from the account. This is one of the main advantages of saving through these accounts rather than in a regular savings account.

In a traditional IRA or 401(k), you pay ordinary income tax on the interest when you withdraw it in retirement. The entire withdrawal is taxed as ordinary income, not just the interest portion.

In a Roth IRA, interest earned is never taxed — not when it's earned, and not when you withdraw it in retirement, as long as you follow the withdrawal rules. This makes Roth accounts particularly valuable for interest-bearing investments if you expect to be in a high tax bracket later.

Interest in a regular savings account or CD outside a retirement account is taxed every year, even if you don't withdraw the money. This is called "phantom income" — you owe tax on money you haven't actually received yet.

Municipal bonds and tax-exempt interest

Interest from bonds issued by states, cities, and other local governments is usually exempt from federal income tax. These are called municipal bonds or "munis." You still report the interest on your tax return, but you mark it as tax-exempt, and it does not increase your federal tax bill.

However, you may still owe state income tax on municipal bond interest, depending on where you live and where the bond was issued. Some states exempt interest from their own bonds but tax interest from bonds issued in other states. A few states have no income tax at all, so residents owe no state tax on any municipal bond interest.

The trade-off is that municipal bonds typically pay lower interest rates than taxable bonds, because investors are willing to accept less interest in exchange for the tax break. Whether a municipal bond makes sense for you depends on your tax bracket and state tax situation.

U.S. savings bonds and Series I bonds

Interest from U.S. savings bonds (Series EE and Series I) is subject to federal income tax, but you have a choice about when to report it. You can report the interest each year as it accrues, or you can wait and report all of it in the year you cash in the bond or it reaches final maturity.

Most people choose to report the interest when they cash in the bond, because it lets them defer the tax. However, if you cash in a bond in a year when your income is unusually high, you may end up in a higher tax bracket. Planning the year you redeem bonds can help you manage your tax bill.

Series I bonds also have a special feature: if you use the money for may have access to education expenses, you may be able to exclude the interest from your taxable income entirely. This requires meeting specific conditions, including income limits and using the money for tuition or fees at an accredited school.

Interest on money you lend to others

If you loan money to a friend, family member, or business and charge interest, that interest is taxable income to you. Even if the loan is informal and there's no written agreement, the IRS expects you to report the interest you receive.

The IRS publishes a minimum interest rate called the Applicable Federal Rate (AFR) each month. If you loan money to a family member and charge less interest than the AFR, the IRS may impute interest — meaning it treats you as if you charged the AFR rate and taxes you on that amount, even though you didn't actually receive it. This rule has exceptions for small loans and certain family situations, but the safest approach is to charge at least the AFR if you want to avoid complications.

Interest you pay on a loan you take out is generally not deductible, with narrow exceptions for investment loans and mortgages on a primary residence or second home (subject to limits).

How interest affects your tax bracket and other benefits

Interest income is added to your other income to determine your total taxable income for the year. If you're close to the edge of a tax bracket, interest income could push you into a higher bracket and increase the tax on all your income above that threshold.

Interest income can also affect your may be able to access for other tax benefits. For example, the amount of student loan interest you can deduct phases out at higher income levels. The Earned Income Tax Credit (EITC) has income limits that include all types of income, including interest. If you're receiving Social Security, interest income may cause some of your benefits to become taxable.

This is why some people with modest incomes choose to keep money in tax-advantaged accounts like IRAs rather than in regular savings accounts — the interest doesn't count toward these thresholds until they withdraw it.

Frequently Asked Questions

Do I have to report interest if the amount is very small?

Yes. The $10 threshold for receiving a Form 1099-INT is just the reporting requirement for the bank — it doesn't mean you can ignore smaller amounts. You owe tax on all interest income, even $1, and you must report it on your tax return. The IRS matches 1099-INT forms against returns, so unreported interest can trigger an audit notice.

What if I reinvest my interest instead of withdrawing it?

You still owe tax on it in the year it's earned. This is called phantom income — you owe tax on money you haven't actually received. This is one reason people prefer to hold interest-bearing investments in retirement accounts, where the interest compounds tax-free until withdrawal.

Is interest from a high-yield savings account taxed differently?

No. Interest from a high-yield savings account is taxed the same way as interest from a regular savings account — as ordinary income at your tax rate. The only difference is the amount of interest you earn. High-yield accounts pay more interest, so you owe more tax on it.

Can I deduct interest I pay on a personal loan?

Generally no. Interest on personal loans, credit cards, and car loans is not deductible. Interest on a mortgage for a primary residence or second home is deductible, but only up to $750,000 of the loan principal (or $1 million if you took out the mortgage before December 16, 2017). Interest on investment loans may be deductible as an investment expense, subject to limits.

What happens if I don't report interest income?

The IRS will likely catch it when it receives the 1099-INT from your bank. Unreported income triggers a notice and a bill for the tax owed, plus interest and penalties. The penalty for not reporting income is usually 20% of the underpaid tax, and interest accrues on top of that. It's much simpler to report it correctly the first time.