Interest from your savings account counts as taxable income

Any interest your bank pays you on a savings account is taxable income. The IRS treats it the same way it treats wages or salary — you owe federal income tax on the full amount. Most banks will send you a Form 1099-INT at the end of the year listing all the interest you earned, and you report that number on your tax return.

The amount of tax you actually pay depends on your tax bracket, which is determined by your total income for the year. Someone in the 22% tax bracket pays more tax on the same interest than someone in the 12% bracket. State and local income taxes may also apply, depending on where you live.

The one exception: if you earned less than $10 in interest during the year, the bank does not have to send you a 1099-INT form, though you still technically owe tax on it. Most people do not report amounts that small.

Key Takeaways

  • Banks report interest earnings to the IRS on Form 1099-INT, and you must report that income on your federal tax return.
  • The tax you owe on interest depends on your overall income and tax bracket, not on a flat rate.
  • High-yield savings accounts earn more interest than traditional savings accounts, which means higher taxable income and potentially higher taxes.
  • You can reduce taxable interest income by holding savings in tax-advantaged accounts like IRAs or 529 plans, where interest grows tax-free or tax-deferred.

How the IRS knows about your interest income

Your bank is required to report interest payments to the IRS if you earned $10 or more during the calendar year. They send Form 1099-INT to both you and the IRS, usually by January 31st of the following year. The form shows the account number, the bank's name, and the exact dollar amount of interest paid.

Because the IRS receives a copy of the same form, they can cross-check your tax return against it. If you fail to report interest income that appears on a 1099-INT, the IRS will likely catch the discrepancy. This is one of the easiest forms of income for the IRS to verify.

Tax brackets and what you actually owe

The tax rate on interest income is not separate from your regular income tax rate — it is added to your total income and taxed at whatever bracket that total puts you in. If you earn $50,000 in wages and $500 in interest, the IRS treats you as earning $50,500 total, and your interest is taxed at the marginal rate for that income level.

For 2024, federal tax brackets range from 10% to 37% depending on filing status and total income. A single filer earning $47,150 to $100,525 falls into the 22% bracket, meaning each dollar of interest is taxed at 22%. Someone earning less falls into a lower bracket and pays less tax on the same interest.

State income tax rates vary widely. New York taxes interest at the same rate as wages. Florida, Texas, and several other states have no state income tax at all. Some states tax interest at a flat rate regardless of your federal bracket.

High-yield savings accounts and the tax trade-off

High-yield savings accounts currently pay 4% to 5% APY, compared to 0.01% or less at traditional savings accounts. That higher rate means more interest income — and more taxable income. A $10,000 balance earning 4.5% generates $450 in annual interest, all of which is taxable.

The interest is still worth it for most people: earning $450 and paying $99 in tax (at 22%) leaves you $351 ahead compared to earning $1 at a traditional bank. But the tax liability is real and should factor into your decision about where to hold cash.

If you are in a high tax bracket, the after-tax return on a high-yield account may be lower than you think. Someone in the 37% federal bracket plus a 10% state bracket pays 47% tax on interest, turning a 4.5% APY into a 2.4% after-tax return.

Tax-advantaged accounts where interest grows tax-free

Interest earned inside certain accounts does not trigger immediate tax liability. A traditional IRA or 401(k) allows interest to compound without annual taxation — you pay tax only when you withdraw the money in retirement. A Roth IRA goes further: interest grows tax-free and withdrawals in retirement are tax-free too, as long as you follow the rules.

A 529 college savings plan works similarly for education expenses: interest and investment gains are tax-free as long as you use the money for may have access to education costs. If you withdraw for non-education purposes, you pay tax on the earnings portion plus a 10% penalty.

These accounts have contribution limits and withdrawal rules, so they are not a replacement for a regular savings account. But if you have money you will not need for years, moving it into a tax-advantaged account can save you thousands in taxes.

What happens if you do not report interest income

The IRS matches 1099-INT forms against tax returns automatically. If your return shows no interest income but the bank reported $500 to the IRS, you will receive a notice asking you to explain the discrepancy. The IRS will assess the tax you owe plus interest on the unpaid amount, usually at a rate around 8% per year.

If the IRS determines the omission was intentional rather than a mistake, you may also face a penalty of 20% to 75% of the unpaid tax, depending on the severity. For small amounts of interest, the IRS often does not pursue the matter aggressively, but the risk increases if you have substantial unreported income from multiple sources.

The safest approach is to report all interest income, even amounts under $10 that do not require a 1099-INT form. The effort is minimal — it is a single line on your tax return — and it keeps you in compliance.

Frequently Asked Questions

Do I have to report interest if I earned less than $10?

Technically yes, but the bank does not send a 1099-INT form for amounts under $10, so the IRS has no independent record of it. Most people do not report such small amounts. However, if you are audited and the IRS finds unreported interest, you will owe tax plus penalties and interest on the unpaid amount.

Can I deduct savings account interest as a loss?

No. Interest income is always taxable, and there is no deduction to offset it. You cannot claim a loss on a savings account even if you withdraw money and end up with less than you deposited, because the interest itself is still income.

What if I moved money between banks during the year?

Each bank reports only the interest paid by that bank on accounts you held there. If you had $5,000 at Bank A earning $50 and then moved it to Bank B earning $100, Bank A reports $50 and Bank B reports $100. You report both on your tax return. The total is what matters to the IRS.

Does joint account interest get split between owners for tax purposes?

The bank reports the full interest amount to the IRS under the Social Security number of the account owner listed first on the account. If the account is truly joint, you and the other owner should split the reported interest on your individual returns, but the IRS sees only the full amount reported to one person. You may need to file an amended return or attach a note explaining the split.

Is interest from a money market account taxed differently?

No. Money market accounts are treated the same as savings accounts for tax purposes — all interest is taxable income reported on Form 1099-INT. The only difference is that money market accounts may offer slightly higher rates and limited check-writing ability.