What a Certificate of Deposit Is for Tax and Accounting Purposes

A Certificate of Deposit (CD) is money you lend to a bank for a fixed period—usually three months to five years—in exchange for a may provide interest rate. From an accounting standpoint, the CD itself is an asset on your balance sheet, and the interest you earn is taxable income that you report on your tax return each year.

The bank will send you a 1099-INT form at tax time showing how much interest the CD earned. You report this on your federal tax return, and depending on your state, you may owe state income tax on it as well. The interest is taxed in the year it accrues—meaning the year the bank credits it to your account—even if you don't withdraw the money until later.

Understanding how CDs work on paper matters because the accounting is straightforward but easy to overlook. Many people forget to report CD interest or don't realize they owe tax on money they haven't actually touched.

Key Takeaways

  • CD interest is taxable income in the year it accrues, and the bank reports it to you and the IRS on a 1099-INT form.
  • You report CD interest on your federal tax return (Form 1040) and may owe state income tax on it as well, depending on where you live.
  • Early withdrawal penalties reduce your taxable interest—if you withdraw early and pay a penalty, that penalty lowers your reported income.
  • CDs appear on your personal balance sheet as a current or long-term asset, depending on when they mature.
  • If you hold a CD in a retirement account like an IRA, the interest is tax-deferred until you withdraw money from the account.

How CD Interest Appears on Your Tax Return

The bank issues a 1099-INT form by January 31 each year, showing all interest earned on CDs held in your name during the previous calendar year. You receive a copy, and the bank sends a copy to the IRS. You then report this amount on your Form 1040 (the main federal income tax form) under "Interest" income.

If you earned more than $1,500 in interest from all sources combined, you must also file Schedule B (Interest and Ordinary Dividends) with your return. The interest is added to your other income and taxed at your ordinary income tax rate—not at a special rate. This means a CD earning 4% interest is taxed the same way as wages or other ordinary income.

State income tax treatment varies. Most states tax CD interest as ordinary income. A few states (like Pennsylvania and New Hampshire) do not tax interest income at all. Check your state's tax rules or ask your accountant whether you owe state tax on the CD interest.

Early Withdrawal Penalties and How They Affect Your Taxes

If you withdraw money from a CD before it matures, the bank charges an early withdrawal penalty. This penalty is important for tax purposes: it reduces the amount of interest you report as income. The 1099-INT form the bank sends you will show the interest earned minus any penalty you paid.

For example, if a CD earned $500 in interest but you withdrew early and paid a $75 penalty, the 1099-INT will report $425 in taxable interest. You do not report the penalty separately—the bank does the math for you on the form.

This is one reason to keep records of any early withdrawal. If the 1099-INT amount seems wrong, you can contact the bank to verify the calculation. Penalties vary by bank and CD term, so always read the CD agreement before opening one if you think you might need the money early.

Recording CDs on Your Personal Balance Sheet

If you track your net worth or maintain a personal balance sheet, a CD is listed as an asset. The amount you list is the principal—the money you deposited—not the interest earned. Interest is recorded separately as income when it accrues.

CDs are typically classified as current assets if they mature within one year, or long-term assets if they mature beyond one year. This distinction matters if you are tracking liquidity—how quickly you can access your money. A CD maturing in three months is more liquid than one maturing in five years.

When the CD matures and you withdraw the money, you remove the CD from your assets and add the full amount (principal plus interest) to your cash or bank account. The interest portion is already recorded as income on your tax return, so you do not double-count it.

CDs in Retirement Accounts and Tax Deferral

If you hold a CD inside a traditional IRA or other tax-deferred retirement account, the interest is not taxed in the year it accrues. Instead, the interest compounds inside the account tax-free until you withdraw money from the IRA. At that point, the entire withdrawal (principal plus all accumulated interest) is taxed as ordinary income.

With a Roth IRA, CD interest is never taxed—neither when it accrues nor when you withdraw it in retirement. This makes Roth accounts attractive for CDs if you expect to be in a higher tax bracket later.

The accounting is simpler for retirement account CDs because you do not receive a 1099-INT form. The IRA custodian (usually a bank or brokerage) tracks the interest internally, and you report withdrawals on your tax return using Form 8606 (for Roth conversions or distributions) or simply as IRA distributions on your 1040.

Joint CDs and Ownership for Tax Purposes

If you own a CD jointly with another person, the interest is typically split equally between you for tax purposes, unless the CD agreement specifies otherwise. Each person reports half the interest on their own tax return. The bank will usually issue two 1099-INT forms—one for each owner—showing the split.

This matters because each person's tax liability depends on their total income. If one spouse is in a higher tax bracket, splitting the interest equally may not be the most tax-efficient approach. Some couples adjust their CD ownership to put more CDs in the name of the lower-income spouse, though this requires separate accounts.

If you are unsure how the bank will report a joint CD, ask before opening it. The bank's default is usually equal split, but you can request a different arrangement in writing.

Tracking CD Interest for Record-Keeping

Keep copies of all 1099-INT forms you receive for at least three years. The IRS can audit tax returns going back three years (or longer if there is suspected fraud), so having the original forms protects you if questions arise.

Also keep records of the CD agreement itself, the deposit receipt, and any early withdrawal documentation. If you withdrew early and paid a penalty, keep proof of the penalty amount. These records help you verify the 1099-INT is correct and support your tax return if audited.

If you hold multiple CDs across different banks, create a simple spreadsheet listing each CD's maturity date, interest rate, principal amount, and the bank name. This helps you track which 1099-INT forms you should expect each January and catch any that go missing.

Frequently Asked Questions

Do I have to report CD interest if the amount is very small?

Yes. The IRS requires you to report all interest income, regardless of amount. The bank reports it to the IRS on the 1099-INT, so the IRS knows about it. Failing to report it can trigger an audit notice, even if the amount is $10.

What happens if I don't receive a 1099-INT form from the bank?

Contact the bank and ask them to send it. Banks are required to issue 1099-INT forms by January 31. If you still don't receive it by early February, ask the bank to reissue it or provide a written statement of the interest earned. You can then report the interest on your tax return based on that statement.

Can I deduct CD losses on my taxes?

No. CDs are not investments that can produce capital losses. The principal is may provide by the bank (up to FDIC limits), so there is no loss to deduct. If the bank fails and you lose money beyond FDIC coverage, that is a casualty loss, which has strict rules and is rarely deductible.

Is CD interest taxed differently if I'm retired?

No. CD interest is taxed as ordinary income at your regular tax rate, regardless of your age or retirement status. However, if your total income is low enough, you may not owe federal tax at all. Retirees should check the annual income thresholds to see if they must file a return.

What if I buy a CD and it matures after I die?

The interest accrued up to your death is reported on your final tax return. Interest earned after your death is reported on the estate's tax return (Form 1041) or on the beneficiary's return, depending on how the CD is titled and your state's laws. Consult an estate attorney or tax professional for specifics.