Interest on checking accounts counts as taxable income on your federal return

Any interest your bank pays you on a checking account balance is taxable income. The IRS treats it the same way it treats wages or other money you receive — you owe federal income tax on it. Your bank will report the amount to both you and the IRS on a Form 1099-INT each January, and you report that figure on your tax return.

The amount of interest you earn on a checking account is usually small — often less than $1 per year on modest balances — but the rule applies regardless of size. Even $0.50 in interest is technically taxable, though you would only report it if your total interest income across all accounts exceeds $10 (the threshold for receiving a 1099-INT form).

Some states also tax interest income, though the rules vary. A few states exempt interest income entirely, while others tax it at the same rate as federal income. You will need to check your state's tax rules separately.

Key Takeaways

  • Your bank reports checking account interest to the IRS on Form 1099-INT, which you receive by January 31 each year.
  • You report this interest income on your federal tax return, and it is taxed at your ordinary income tax rate.
  • The threshold for receiving a 1099-INT is $10 in total interest across all accounts, but interest below that amount is still technically taxable.
  • State tax treatment of interest income varies — some states tax it, others do not, so check your state's rules.
  • High-yield checking accounts pay more interest than traditional accounts, which means higher taxable income but also a larger 1099-INT to report.

How the IRS learns about your checking account interest

Banks are required to send Form 1099-INT to any account holder whose interest income reaches $10 or more in a calendar year. Your bank mails this form to you and files a copy with the IRS. The form shows the account number, the bank's name and tax ID, and the exact dollar amount of interest paid.

You should receive your 1099-INT by January 31 of the year following the year the interest was earned. If you do not receive it by early February, contact your bank directly — they can issue a replacement or provide the information over the phone.

The IRS cross-checks the 1099-INT forms it receives from banks against the income you report on your tax return. If you receive a 1099-INT but do not report that interest on your return, the IRS will likely flag the discrepancy and may send you a notice.

Where to report interest income on your tax return

If you file Form 1040 (the standard federal income tax form), you report interest income on Schedule B, which is titled "Interest and Ordinary Dividends." You list each source of interest separately, then add them up and transfer the total to line 1b of Form 1040.

If your total interest income is $1,500 or less and you have no other investment income, you may be able to report it directly on Form 1040 without filing Schedule B — the instructions will tell you whether you may have access to. Most people with checking account interest fall into this category.

The interest is added to your other income and taxed at your marginal tax rate — the rate that applies to your highest dollar of income. If you are in the 22% tax bracket, for example, that $5 in checking account interest adds $1.10 to your federal tax bill.

High-yield checking accounts and higher taxable interest

Some banks offer high-yield checking accounts that pay significantly more interest than traditional checking accounts — sometimes 4% to 5% annually, compared to 0.01% or less at major banks. If you keep a $10,000 balance in a high-yield account paying 4.5%, you would earn roughly $450 per year in interest, all of which is taxable.

The tradeoff is real: the higher interest income means a larger tax bill. A $450 interest payment in the 22% tax bracket costs you about $99 in federal tax. You still come out ahead financially, but the after-tax return is lower than the advertised rate.

High-yield checking accounts often come with requirements — minimum balance thresholds, a certain number of debit card transactions per month, or direct deposit of your paycheck. Read the terms carefully, because failing to meet the requirements can drop your rate to nearly zero, leaving you with the tax burden and none of the benefit.

State income tax on checking account interest

Most states that have an income tax also tax interest income, including interest from checking accounts. The rate varies by state and by your income level. A few states — including Illinois, Mississippi, and Tennessee — exempt interest income from state tax entirely.

If you live in a state with income tax, you will report the same interest income on your state return that you reported to the IRS. Some states use your federal return as the starting point, so the interest automatically flows through. Others require you to list it separately on a state-specific form.

If you moved during the year or work in a different state than you live in, your state tax situation may be more complex. Check your state's tax authority website or consult a tax preparer to understand how your interest income is taxed at the state level.

What happens if you do not report interest income

If your bank reports interest on a 1099-INT and you do not report it on your tax return, the IRS will eventually notice. The agency receives copies of all 1099-INT forms and matches them against filed returns. A missing $5 in interest might not trigger immediate action, but a missing $500 will.

The IRS can assess back taxes, plus interest on the unpaid amount (which compounds daily), plus penalties for underpayment. The penalty for negligence is typically 20% of the underpaid tax. If the IRS determines the omission was intentional, the penalty can be higher.

The safest approach is to report all interest income, no matter how small. If you receive a 1099-INT, report it. If you earn interest but the amount is below $10 and you do not receive a 1099-INT, you still should report it — the absence of a form does not mean the income is not taxable.

Frequently Asked Questions

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

Technically yes, though banks only send a 1099-INT if interest reaches $10. Interest below that threshold is still taxable income. If you earned $5 in interest and did not receive a 1099-INT, you should still report it on your return. The IRS may not catch the omission, but you are not required to have a 1099-INT to report income.

Can I deduct anything to offset the tax on checking account interest?

No. Interest income is added to your other income and taxed at your ordinary rate. You cannot deduct bank fees or other expenses related to the account. Your only option to reduce the tax is to earn less interest — by keeping a lower balance or moving to a bank that pays less.

What if my bank sends me a 1099-INT with the wrong amount?

Contact your bank immediately and ask them to issue a corrected form. They will send you a corrected 1099-INT (marked as a correction) and file a corrected copy with the IRS. Do not file your tax return until you have the corrected form, so your reported amount matches what the IRS receives.

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

The bank reports the full interest amount on a single 1099-INT, typically in the name of the first account owner listed. You and the other owner will need to decide how to split the income for tax purposes — usually 50/50, but it depends on your ownership agreement. Consult a tax preparer if you are unsure how to report it.

Is interest from a checking account taxed differently than interest from a savings account?

No. The IRS treats interest income the same way regardless of the account type. Whether it comes from a checking account, savings account, money market account, or certificate of deposit, it is all reported on Form 1099-INT and taxed as ordinary income.