Money you earn in a savings account is not subject to capital gains tax on savings accounts, because the IRS does not treat bank interest as a capital gain at all. It is ordinary income, taxed at the same federal rates as your wages: 10 percent to 37 percent for 2026, depending on your total income and filing status. That treatment applies whether the account is a standard savings account, a high-yield online account, a money market account, or a certificate of deposit.
Why Savings Interest Is Not a Capital Gain
Capital gains tax applies when you sell an asset for more than you paid for it. Buy a stock at $50, sell it at $80, and you have a $30 capital gain. A savings account works differently. You deposit money, the bank pays you for the use of it, and you can withdraw your original deposit whenever you want. No asset changes hands and nothing appreciates in value. The tax code lists interest as its own category of gross income, separate from gains on property.
The classification does not change based on the product or how long you leave the money in place. A five-year CD generates ordinary interest, not a long-term capital gain, even though you locked the funds up for years. The same is true of money market accounts and any high-yield savings product a bank markets.
How Your Savings Interest Is Taxed
Interest gets added to your wages, self-employment income, and other earnings to form your total taxable income for the year, then the progressive brackets apply. For a single filer in 2026, the federal brackets run:
- 10% on income up to $12,400
- 12% from $12,401 to $50,400
- 22% from $50,401 to $105,700
- 24% from $105,701 to $201,775
- 32% from $201,776 to $256,225
- 35% from $256,226 to $640,600
- 37% over $640,600
For married couples filing jointly, each threshold is roughly double.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Your interest is taxed at whatever marginal rate applies to the top slice of your income. Someone earning $90,000 in salary with $2,000 in savings interest pays 22 percent on that interest, because the combined $92,000 still sits inside the 22 percent bracket.
One quirk catches people out. Interest is taxable in the year it is credited to your account, not the year you withdraw it. If the bank posts $500 in December, you owe tax on it for that year even if the money never leaves the account. This is the constructive receipt rule.2eCFR. 26 CFR 1.451-2 – Constructive Receipt of Income There is also no inflation adjustment. If your account earns 4 percent while inflation runs 3 percent, tax applies to the full 4 percent.3Internal Revenue Service. Topic No. 403, Interest Received
The 3.8% Net Investment Income Tax
Higher earners pay an extra 3.8 percent on savings interest through the Net Investment Income Tax. The surtax kicks in when modified adjusted gross income exceeds:
- $200,000 for single filers
- $250,000 for married filing jointly
- $125,000 for married filing separately
It applies to the lesser of your net investment income or the amount by which your income exceeds the threshold.4Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax A single filer with $220,000 in total income and $5,000 of it from savings interest owes 3.8 percent on the full $5,000, adding $190 to the tax bill on top of the ordinary income tax. These thresholds are not indexed for inflation, so they catch more taxpayers each year.
Reporting Interest on Your Return
Any bank or credit union that pays you $10 or more in interest during the year must send you a Form 1099-INT by the end of January.5Office of the Law Revision Counsel. 26 USC 6049 – Returns Regarding Payments of Interest Box 1 shows your total taxable interest at that institution, and you report that number on Form 1040 as part of your income.6Internal Revenue Service. About Form 1099-INT, Interest Income
Earn less than $10 and the bank will not send a form. The income is still taxable. The IRS is explicit that all taxable interest must be reported whether or not you receive a 1099-INT.3Internal Revenue Service. Topic No. 403, Interest Received
When your total taxable interest from all sources tops $1,500 for the year, you also file Schedule B.7Internal Revenue Service. About Schedule B (Form 1040), Interest and Ordinary Dividends Schedule B asks you to list each institution and the amount from each, so accounts at three banks get three lines. The totals must match what you put on Form 1040.
Early Withdrawal Penalty on a CD
Cashing in a certificate of deposit before it matures usually costs you a penalty deducted from your interest. That penalty is deductible as an adjustment to income on Schedule 1, Line 18, whether or not you itemize.8Internal Revenue Service. Schedule 1 (Form 1040) The 1099-INT reports the penalty amount in Box 2.
Here is the part that trips people up. Box 1 reports the full interest earned, including the portion the bank clawed back. You have to claim both the income in full and the deduction on Schedule 1, or you end up paying tax on money you never actually kept.
Paying the Tax: Withholding and Estimated Payments
Banks generally do not withhold income tax from interest the way employers withhold from wages. If your savings throw off enough interest, you may need quarterly estimated payments to avoid an underpayment penalty. The IRS charges the penalty when you owe $1,000 or more at filing and have not paid enough during the year. Quarterly due dates are April 15, June 15, September 15, and January 15 of the following year.9Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
A safe harbor lets you off the hook: pay at least 100 percent of last year’s total tax through withholding and estimated payments. If your prior-year adjusted gross income exceeded $150,000 ($75,000 if married filing separately), the required amount rises to 110 percent. If your paycheck withholding already covers the added tax on your interest, you do not need to make estimated payments. Some people find it easier to increase withholding on a new W-4 than to send quarterly checks.
State Taxes on Savings Interest
Federal is only half the picture. Most states tax savings interest as ordinary income the same way the IRS does. Eight states have no individual income tax at all: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, and Wyoming. Washington taxes capital gains but not interest. Everywhere else, expect your state to tax the interest at whatever bracket rate applies under its own code, and some localities layer additional tax on top.
Tax-Advantaged Alternatives
If ordinary-income treatment on your savings interest bothers you, several account types offer better tax outcomes. None is a direct swap for a checking-linked savings account, but each has a role.
- A Roth IRA takes after-tax contributions and lets earnings grow tax-free, with tax-free withdrawals of earnings once you are at least 59½ and the account has been open five years. Many brokerages offer cash savings options inside a Roth IRA, though annual contribution limits apply and the money is less accessible than a bank account.10Internal Revenue Service. Topic No. 451, Individual Retirement Arrangements (IRAs)
- A Health Savings Account, available if you have a high-deductible health plan, grows federally tax-free as long as withdrawals cover eligible medical expenses. For 2026 the contribution limit is $4,400 for self-only coverage and $8,750 for family coverage. After 65, you can withdraw for any purpose and pay ordinary income tax, similar to a traditional IRA.11Congress.gov. Health Savings Accounts (HSAs)
- Series I savings bonds are federally taxable but exempt from state and local tax, and you can defer reporting the interest until you redeem the bond or it matures. Purchase is capped at $10,000 per person per year through TreasuryDirect.12TreasuryDirect. Tax Information for EE and I Bonds
- Municipal bonds pay interest that is generally exempt from federal income tax, and often from state tax if issued by your state of residence. Yields tend to be lower than taxable alternatives, so the value of the exemption depends on your marginal rate.