Yes, bank interest is taxable. The IRS treats interest from savings accounts, checking accounts, money market accounts, and certificates of deposit as ordinary income, and you owe federal tax on it in the year your bank credits it to your account, whether or not you withdraw it. Federal law lists interest as part of gross income.1Office of the Law Revision Counsel. 26 U.S. Code 61 – Gross Income Defined A handful of narrow exceptions exist for certain government bonds and retirement accounts, but interest paid by a bank or credit union is almost always fully taxable at your regular income tax rate.
Which Bank Products Produce Taxable Interest
Almost every interest-bearing account at a bank generates taxable income. That includes ordinary savings accounts, interest-bearing checking, money market accounts, and CDs. A higher yield simply means a larger taxable amount, not a different tax treatment.
Credit unions call their payments “dividends,” but the IRS treats them as interest, not as the stock dividends that can qualify for lower rates.2Internal Revenue Service. 1099-DIV Dividend Income Everything the credit union pays on your share account is taxed at your ordinary income rate, the same as bank interest. For 2026, ordinary rates run from 10 percent on the first $12,400 of taxable income for single filers up to 37 percent above $640,600.3Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
When You Actually Owe the Tax
Interest is taxable in the year the bank credits it to your account, not the year you withdraw the money. This is called constructive receipt: once the funds are available to you, the IRS treats them as received.4Office of the Law Revision Counsel. 26 U.S. Code 451 – General Rule for Taxable Year of Inclusion Interest posted on December 31 belongs on that year’s return even if you don’t see it in your records until January.5Internal Revenue Service. Publication 17 – Your Federal Income Tax
This trips people up with CDs. A multi-year CD that credits interest annually creates a tax bill every year, not one big bill when the CD matures. And if your CD pays no interest until maturity, you may still owe tax each year on the interest as it accrues, reported to you on Form 1099-OID rather than 1099-INT.6Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID The box 1 amount on that form is taxable in the year shown, even though the cash stays locked up until the CD comes due.
The 1099-INT Your Bank Sends
Banks and credit unions must send you a Form 1099-INT by the end of January if they paid you at least $10 in interest during the year.7Internal Revenue Service. About Form 1099-INT – Interest Income The boxes that matter most:
- Box 1 is the total taxable interest the institution paid you. This is the main figure that goes on your return.
- Box 2 is any early withdrawal penalty charged, for example if you broke a CD before maturity. It is deductible.
- Box 3 is interest from U.S. savings bonds and Treasury securities.
- Box 8 is tax-exempt interest, such as from municipal bonds.
The $10 threshold controls only whether the bank has to send the form. It does not create a floor below which interest is tax-free. If you earned $6 across a savings account and no 1099-INT arrives, you still owe tax on that $6 and are supposed to report it.
How to Report It on Your Return
Taxable interest goes on line 2b of Form 1040. If your total from all sources is $1,500 or less, you can enter the figure directly on that line and be done.8Internal Revenue Service. About Schedule B (Form 1040) – Interest and Ordinary Dividends Above $1,500, you also have to complete Schedule B, listing each payer and the amount from each, then carrying the total to Form 1040.9Internal Revenue Service. Schedule B (Form 1040) – Interest and Ordinary Dividends
If box 2 of your 1099-INT shows an early withdrawal penalty, deduct it on Schedule 1 of Form 1040.10Internal Revenue Service. Schedule 1 (Form 1040) – Additional Income and Adjustments to Income This is an above-the-line deduction, so you get it whether you itemize or take the standard deduction. It reduces your adjusted gross income directly.
Interest That Is Taxed Differently
A few products readers sometimes assume are like bank accounts get different treatment, and it’s worth knowing where the line is.
U.S. Treasury Securities
Interest from Treasury bills, notes, and bonds is fully taxable federally but exempt from state and local income tax.11Internal Revenue Service. Topic No. 403 – Interest Received If you live in a state with an income tax, that can make Treasuries more attractive after tax than a bank product paying a similar headline rate.
Municipal Bonds
Interest from most state and local government bonds is exempt from federal income tax.12Office of the Law Revision Counsel. 26 U.S. Code 103 – Interest on State and Local Bonds Certain private activity bonds and arbitrage bonds don’t qualify. Tax-exempt interest still appears on your return, reported separately rather than added to taxable income.
Series EE and Series I Savings Bonds
You can defer reporting the interest on Series EE and I savings bonds until you redeem them or they mature, whichever comes first.11Internal Revenue Service. Topic No. 403 – Interest Received Reporting annually is an option, but deferral is more common. If you use the proceeds for qualified higher education expenses, you may be able to exclude the interest entirely; the bond must have been issued after 1989 to someone at least 24 years old at purchase.13Office of the Law Revision Counsel. 26 U.S. Code 135 – Income From United States Savings Bonds Used to Pay Higher Education Tuition and Fees
Interest Inside a Roth IRA
Interest on savings or CDs held inside a Roth IRA doesn’t produce an annual tax bill. Qualified distributions, taken after age 59½ and at least five years after your first Roth contribution, come out tax-free, interest included.14Internal Revenue Service. Topic No. 451 – Individual Retirement Arrangements (IRAs) You don’t report the interest each year the way you would for a regular bank account.
Backup Withholding
When you open an account you give the bank your Social Security number on Form W-9. If you don’t, or if the number doesn’t match IRS records, the bank must withhold 24 percent of your interest and send it to the IRS.15Internal Revenue Service. Publication 15 – Employer’s Tax Guide This isn’t an extra tax; it’s a prepayment you claim as a credit on your return, refunded if too much was withheld. Making sure every bank has the right taxpayer ID on file is the fix.
Net Investment Income Tax for Higher Earners
If your income is high enough, an additional 3.8 percent surtax applies to net investment income, which includes bank interest. It’s charged on the smaller of your net investment income or the amount by which your modified adjusted gross income exceeds these thresholds:16Internal Revenue Service. Topic No. 559 – Net Investment Income Tax
- Single or head of household: $200,000
- Married filing jointly: $250,000
- Married filing separately: $125,000
These thresholds are not adjusted for inflation. Combined with the top ordinary rate, the effective federal tax on interest can reach 40.8 percent.
What Happens If You Don’t Report It
The IRS receives its own copy of every 1099-INT. Automated matching flags returns where the interest doesn’t line up with what banks reported, and the usual result is a CP2000 notice proposing extra tax on the missing amount plus interest on the unpaid balance.
On top of that, the IRS can add an accuracy-related penalty of 20 percent of the underpayment when the shortfall is due to negligence or a substantial understatement of income.17Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty on Underpayments The cleanest habit is to pull out your 1099-INT forms in January, tie the totals to your year-end statements, and put every dollar on your return.