When you earn interest on a certificate of deposit or a savings account, the IRS considers that income just as taxable as the wages from your job. Many savers are surprised to discover that the modest interest payments they receive from their bank accounts must be reported to the government each year. This article explains exactly how interest income is taxed, what forms you will receive, how to report it on your tax return, and strategies to minimize your tax burden. Understanding these rules can help you avoid penalties and make smarter decisions about where to park your cash.
How Interest Income Is Taxed by the IRS
Interest earned on CDs and savings accounts is classified as ordinary income by the Internal Revenue Service. This means it is added to your total taxable income for the year and taxed at your marginal tax rate. Unlike capital gains, which benefit from lower long-term rates, interest income receives no preferential tax treatment. The tax rate you pay on interest depends entirely on your overall income bracket, which ranges from 10 percent to 37 percent for the 2024 and 2025 tax years. If you fall into the 22 percent bracket, for example, every dollar of interest you earn will be taxed at 22 cents on the dollar.
When Interest Becomes Taxable
Interest becomes taxable in the year it is credited to your account, even if you do not withdraw it. This is a crucial point for savers who let their interest compound. The moment your bank posts interest to your CD or savings account, the IRS considers that money available to you, and you must report it on your tax return for that year. For CDs with terms longer than one year, you pay tax on the interest each year as it accrues, not just when the CD matures. This annual taxation rule applies regardless of whether you have a traditional CD, a bump-up CD, or a no-penalty CD.
Types of Interest That Are Taxable
Nearly all interest you earn from financial institutions is taxable unless explicitly exempted by law. The following types of interest are fully taxable at the federal level:
Interest from standard savings accounts, money market accounts, and checking accounts with interest features. Interest from certificates of deposit of any term length. Interest from credit union share accounts, which is often called dividends but is treated as interest for tax purposes. Interest from high-yield savings accounts offered by online banks. Interest from brokered CDs purchased through brokerage firms. Interest from cash management accounts and certain prepaid card accounts that pay interest on balances.
What About Tax-Exempt Interest
Some interest is exempt from federal income tax, but this is rare for typical savings products. Interest from municipal bonds and certain state and local government obligations is generally tax-free at the federal level. However, interest from CDs and savings accounts is never tax-exempt. Even if you hold a CD issued by a credit union or a community bank, the interest remains fully taxable. The only exception is if you hold a tax-advantaged account such as an IRA or a Health Savings Account, where the interest grows tax-deferred or tax-free, but that is a function of the account type, not the product itself.
Forms You Will Receive for Interest Income
Banks and credit unions are required to send you a Form 1099-INT if they pay you at least $10 in interest during the year. This form shows the total interest income you earned from that institution. You will typically receive it by January 31 for the previous tax year. If you earned less than $10, the institution is not required to send a form, but you are still legally obligated to report that income on your tax return. The IRS also receives a copy of every 1099-INT issued, so the agency knows about your interest income even if you forget to include it.
What to Do If You Do Not Receive a 1099-INT
If you earned less than $10 in interest, you may not receive a form. However, you should still report the interest on your tax return. You can find the total by checking your account statements for the year. If you believe you earned $10 or more and did not receive a form, contact your bank to request a duplicate. You can also log into your online banking portal to download a copy. Failing to report interest income, even small amounts, can trigger IRS notices and penalties.
How to Report Interest Income on Your Tax Return
Reporting interest income is straightforward. You enter the total amount from all your 1099-INT forms on line 2b of Form 1040 if you use the standard form. If you itemize deductions, you use Schedule B to list each payer and the amount of interest received. Schedule B is also required if your total interest income exceeds $1,500. Most tax software will prompt you to enter this information and will automatically transfer it to the correct lines. If you file by mail, be sure to attach Schedule B when required.
State Tax Treatment of Interest Income
Most states also tax interest income as ordinary income. However, some states offer exemptions or different rates. For example, New Hampshire and Tennessee do not tax interest income at the state level. Other states may have lower rates for certain types of interest. Check your state’s tax guidelines to determine your specific obligations. If you live in a state with no income tax, you only need to worry about federal taxes on your interest.
Strategies to Minimize Taxes on Interest Income
While you cannot avoid taxes on interest altogether, you can take steps to reduce their impact. One effective strategy is to hold your savings in tax-advantaged accounts. If you place CDs or savings inside a traditional IRA, the interest grows tax-deferred until you withdraw it. With a Roth IRA, qualified withdrawals are tax-free. Another strategy is to use a Health Savings Account if you are eligible, as contributions are tax-deductible and withdrawals for qualified medical expenses are tax-free.
For taxable accounts, consider municipal bond funds or tax-exempt money market funds if you are in a high tax bracket. However, these alternatives typically offer lower yields than CDs or high-yield savings accounts. You must compare the after-tax return of each option. For example, if you are in the 24 percent tax bracket, a CD yielding 5 percent provides an after-tax return of 3.8 percent. A tax-exempt fund yielding 3.5 percent would be inferior in that case.
Timing Your Interest Income
You have some control over when interest is credited to your account. If you are close to the end of the year and expect to be in a lower tax bracket next year, you might choose a CD that matures in the new year. However, this strategy is limited because interest on savings accounts accrues daily and is reported annually. For CDs, you can choose a term that aligns with your tax planning, but remember that interest is taxed each year as it accrues, not just at maturity.
Penalties for Not Reporting Interest Income
The IRS takes unreported interest income seriously. If you fail to report interest, the IRS may send you a notice and assess additional taxes, penalties, and interest on the unpaid amount. The penalty for negligence can be 20 percent of the underpayment. If the IRS determines that you intentionally ignored reporting requirements, you could face fraud penalties of 75 percent of the underpayment. In extreme cases, criminal charges are possible. The best approach is to report all interest income accurately and on time.
Common Misconceptions About Interest and Taxes
Many savers believe that if they do not receive a 1099 form, they do not need to report the interest. This is false. The IRS expects you to report all income, regardless of whether a form was issued. Another misconception is that interest earned on a joint account is reported only on one person’s return. In reality, joint account holders must decide how to split the interest income for tax purposes, typically 50 percent each. The IRS allows any reasonable allocation as long as both parties agree. A third misconception is that interest on a child’s account is always tax-free. While the kiddie tax rules may apply, interest earned by a child is still taxable, and a return may be required if the income exceeds certain thresholds.
How the 2024 and 2025 Tax Brackets Affect Interest Income
Understanding your marginal tax bracket helps you estimate how much tax you will owe on interest. For the 2024 tax year, the brackets range from 10 percent for single filers earning up to $11,600 to 37 percent for income over $609,350. For 2025, the brackets are adjusted slightly for inflation. If you are in a higher bracket, a larger portion of your interest goes to taxes. For example, a single filer earning $100,000 in taxable income is in the 24 percent bracket for 2024. Interest of $1,000 would cost $240 in federal tax. Knowing your bracket allows you to calculate the after-tax yield of any savings product.
Reporting Interest from Foreign Accounts
If you hold a savings account or CD at a foreign bank, you must report the interest income on your U.S. tax return. Additionally, if the total value of your foreign financial accounts exceeds $10,000 at any time during the year, you must file a Foreign Bank Account Report with the Financial Crimes Enforcement Network. Failure to file FBAR can result in severe penalties. The interest itself is reported the same way as domestic interest, using Form 1040 and Schedule B if required.
Final Considerations for Savers
Interest on CDs and savings accounts is a straightforward form of income that carries no special tax benefits. The key to managing your tax liability is to keep accurate records, report all interest received, and consider tax-advantaged accounts when possible. By understanding the rules outlined here, you can avoid surprises at tax time and make more informed decisions about where to hold your cash. Always consult a tax professional if your situation is complex, such as if you have multiple accounts, foreign holdings, or are subject to the alternative minimum tax. A proactive approach to tax planning ensures that your savings work for you without creating unnecessary tax headaches.
