You owe federal income tax on all interest your high-yield savings account earns, at your ordinary income tax rate
The interest you earn in a high-yield savings account is taxable income. The IRS treats it the same way it treats wages or salary — you report it on your tax return and pay tax at whatever rate applies to your income bracket. There is no special lower rate for savings interest, and there is no threshold below which it becomes tax-free.
Your bank will send you a Form 1099-INT by January 31 each year if you earned $10 or more in interest during that year. You use this form to report the interest on your federal tax return. If you earned less than $10, the bank may not send a form, but you still owe tax on that interest and must report it.
Many states also tax savings interest as income. The rate and rules vary by state — some states do not tax interest income at all, while others tax it at the same rate as wages. Check your state's tax authority website or ask a tax preparer what applies where you live.
Key Takeaways
- Interest from a high-yield savings account is taxed as ordinary income at your federal tax bracket, with no special lower rate.
- Your bank sends you a Form 1099-INT by January 31 if you earned $10 or more in interest during the year.
- State income tax on savings interest varies — some states do not tax it, while others tax it at full income rates.
- The tax is owed whether or not the bank sends you a form, so track interest earned even on accounts below the $10 reporting threshold.
How the IRS knows about your interest income
Banks report interest to the IRS electronically through Form 1099-INT. The IRS receives a copy of the same form your bank sends to you. This means the IRS already knows how much interest you earned before you file your tax return — if you do not report it, the IRS will notice the mismatch.
The $10 threshold is a reporting requirement, not a tax threshold. If you earned $8 in interest, your bank does not have to send a form, but you still owe tax on that $8. The IRS expects you to report all interest income, regardless of whether you receive a 1099-INT.
What tax rate applies to your interest income
Your interest is taxed at your marginal tax rate — the rate that applies to the highest portion of your income. If you are in the 22% federal tax bracket, interest is taxed at 22%. If you are in the 12% bracket, interest is taxed at 12%. The rate depends on your total income for the year, not on the source of that income.
This means the tax on your interest is not a flat percentage — it depends on how much you earn from all sources combined. Someone earning $30,000 a year pays tax on savings interest at a lower rate than someone earning $150,000 a year.
Self-employed people and business owners also owe self-employment tax on their net business income, but not on interest from savings accounts. Interest is treated as investment income, not business income.
State and local taxes on savings interest
Federal tax is only part of the picture. Most states with an income tax also tax interest income, and a few cities do as well. The rules vary widely:
- Nine states have no income tax at all: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire (which taxes only interest and dividends, but many accounts are exempt).
- Most other states tax interest at the same rate as wages.
- A few states offer limited exemptions for certain types of savings or for people over a certain age — check your state's tax authority for details.
If you live in a state with income tax and earn interest in a high-yield savings account, you will owe state tax on that interest in addition to federal tax. The total tax rate can be significant — for example, a person in the 24% federal bracket living in California (which has a top state rate of 13.3%) could owe over 37% in combined tax on interest income.
When you pay tax on the interest you earn
You do not pay tax on interest as it accrues throughout the year. Instead, you report all the interest you earned during the calendar year on your tax return, which you file by April 15 of the following year (or October 15 if you file for an extension). The tax is due on that same date.
If you expect to owe a large amount of tax on interest and other income, you may need to make estimated tax payments throughout the year. This applies mainly to self-employed people and retirees, but it can apply to anyone whose tax withholding does not cover their total tax bill. The IRS charges penalties and interest if you underpay estimated tax.
If you have a regular job with tax withholding, your employer withholds tax from your paycheck. That withholding may cover the tax on your interest income, or it may not — it depends on your total income and how much you earn in interest. You find out when you file your return.
How to report interest income on your tax return
When you file your federal return, you report interest income on Schedule B (if you have more than $1,500 in interest and dividends combined) or directly on Form 1040 (if you have less). You list each account separately if you have multiple accounts, or you can total them if you prefer — the IRS accepts either method.
Use the amount shown on your Form 1099-INT. If you received multiple 1099-INT forms from different banks, add them together and report the total. If you earned interest but did not receive a form (because it was under $10), you still report it — write in the amount yourself.
For state taxes, follow your state's instructions. Most states use the same federal interest income figure, but some have different rules or exemptions. Your state tax form will tell you where to report it.
Strategies to reduce tax on savings interest
You cannot avoid tax on interest income, but you can reduce the amount of interest you earn — and therefore the tax you owe — by keeping money in lower-yield accounts. This is rarely a good trade-off. A high-yield savings account earning 4.5% annual percentage yield (APY) generates more after-tax money than a regular savings account earning 0.01% APY, even after you pay tax on the interest.
If you have a large amount of money to save and want to minimize taxes, you might consider tax-advantaged accounts like a Roth IRA or 401(k), where interest and investment gains grow tax-free or tax-deferred. These accounts have contribution limits and withdrawal rules, so they work best as part of a longer-term savings plan, not as a place to park emergency cash.
Some people use I Bonds (savings bonds issued by the U.S. Treasury) as a tax-deferred alternative to savings accounts. Interest on I Bonds is not taxed until you cash them in or they mature, which can be 30 years. However, I Bonds have lower interest rates than high-yield savings accounts, and your money is locked up for at least one year.
Frequently Asked Questions
Do I have to report interest if I earned less than $10?
Yes. The $10 threshold only determines whether your bank sends you a Form 1099-INT. You still owe tax on all interest income, no matter how small. Report it on your tax return even if you do not receive a form.
What if I earned interest in multiple high-yield savings accounts?
Add up the interest from all your accounts and report the total on your tax return. Each bank sends a separate 1099-INT if you earned $10 or more in that account, but you combine them into one line item when you file.
Can I deduct the tax I pay on savings interest?
No. Interest income is taxable, and you cannot deduct the tax itself. You can only deduct certain investment expenses (like fees paid to a financial advisor), and only if you itemize deductions and meet other IRS rules — most people take the standard deduction instead.
Does interest earned in a joint account get split between owners for tax purposes?
Not automatically. The bank reports all interest to the IRS under one taxpayer ID. You and the other account owner must decide how to split the income for tax purposes and report it accordingly on your individual returns. If you own the account jointly but only one person contributed the money, that person typically reports all the interest.
What happens if I move money between banks during the year?
You report interest based on when it was earned, not when you moved the money. If you earned $200 in interest at Bank A before moving to Bank B, you report that $200 even though the money is now at Bank B. Each bank reports only the interest earned in their account during the time your money was there.