Money you put into a certificate of deposit is not tax deductible. The IRS treats a CD purchase as moving your savings from one form to another, not as a deductible expense or a contribution to a tax-advantaged account. Two related items do carry tax benefits, though, and they’re where most of the confusion comes from: the early withdrawal penalty your bank charges if you break a CD is deductible, and a CD held inside a traditional IRA can be deductible through the IRA contribution itself.
Why the Deposit Itself Isn’t Deductible
When you open a CD, you deposit money you’ve already paid tax on, and you still own every dollar of that principal throughout the term. Nothing has been spent, donated, or contributed to a tax-preferred account. It’s an exchange of cash in a checking or savings account for cash in an interest-bearing instrument with a fixed maturity date.
Tax deductions exist for specific purposes written into the code: unreimbursed business costs, contributions to qualified retirement plans, charitable giving, and a handful of other categories. Parking money in a CD doesn’t fit any of them. If you could deduct the deposit and then get the same money back at maturity, you’d effectively shelter that income from tax twice.
The Early Withdrawal Penalty Is Deductible
Break a CD before it matures and your bank charges a penalty, usually stated as a certain number of months of interest. That forfeited amount is deductible as an adjustment to income under Internal Revenue Code Section 62(a)(9).1Office of the Law Revision Counsel. 26 USC 62 – Adjusted Gross Income Defined
This is an above-the-line deduction, so you get it whether or not you itemize. Report it on Line 18 of Schedule 1 (Form 1040), labeled “Penalty on early withdrawal of savings.”2Internal Revenue Service. 2025 Schedule 1 (Form 1040) Because it lowers your adjusted gross income directly, it can also improve your eligibility for other tax breaks that phase out at higher income levels.
The deductible amount can include forfeited principal, not just forfeited interest. The IRS defines Box 2 on Form 1099-INT as “interest or principal forfeited because of an early withdrawal of time deposits.”3Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID If you cash out of a short-term CD very early, the penalty can exceed the interest earned and eat into your deposit. The full amount reported in Box 2 is still deductible.
A typical example: your CD earned $200 in interest and the bank assessed a $120 penalty. You’d report the $200 as interest income and deduct the $120 on Schedule 1. Tax hits only the $80 difference. The deduction exists so you’re not taxed on interest you had to give back.
CDs Inside a Traditional IRA
The closest thing to a “tax-deductible CD” is one held inside a traditional IRA. The deduction applies to the IRA contribution, not to the CD. Whether you invest your IRA funds in CDs, mutual funds, or anything else doesn’t change the tax treatment. But if you want guaranteed returns and you qualify for the deduction, an IRA CD is worth considering.
For 2026, you can contribute up to $7,500 to an IRA, or $8,600 if you’re 50 or older.4Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026; IRA Limit Increases to $7,500 Whether that contribution is deductible depends on your income and whether you or your spouse have a retirement plan at work:
- Single with a workplace plan: full deduction below $81,000, phasing out between $81,000 and $91,000, gone above $91,000.
- Married filing jointly, contributor has a workplace plan: full deduction below $129,000, phasing out between $129,000 and $149,000.
- Married filing jointly, only your spouse has a workplace plan: full deduction below $242,000, phasing out between $242,000 and $252,000.
- Married filing separately with a workplace plan: phase-out runs from $0 to $10,000, so almost any income eliminates the deduction.
- No workplace plan at all: full deduction regardless of income.
Fall inside the phase-out range and you get a partial deduction. Above it, you can still contribute but you won’t get an upfront tax break. A Roth IRA CD offers no deduction on contributions, but qualified withdrawals in retirement come out tax-free, including all the accumulated interest.4Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026; IRA Limit Increases to $7,500
One catch. If you break a CD inside an IRA before maturity, the bank still charges its early withdrawal penalty. And if you pull the money out of the IRA before age 59½, you’ll typically owe income tax plus a 10% additional tax on the distribution. The IRA wrapper adds a layer of penalty risk on top of the CD’s own restrictions.
How CD Interest Is Taxed
Since the deposit isn’t deductible, the tax story for a typical CD is really about the interest. Interest earned on a CD is taxable as ordinary income at the federal level, at the same rates as your wages. The IRS lists CD interest among the categories of taxable interest income.5Internal Revenue Service. Topic No. 403, Interest Received For 2026, marginal rates run from 10% to 37%. Most states treat the interest as ordinary income too.
Interest inside a tax-advantaged retirement account is the exception. CD interest in a traditional IRA grows tax-deferred until withdrawal, and interest in a Roth IRA can be entirely tax-free if you meet the distribution rules.
When You Owe the Tax
Constructive receipt determines timing. Under Treasury Regulation Section 1.451-2, income counts as received in the year it’s credited to your account and made available without substantial restrictions, even if you don’t withdraw it.6eCFR. 26 CFR 1.451-2 – Constructive Receipt of Income
For a short-term CD of one year or less, you generally report all the interest in the year it matures. For a longer-term CD, banks usually credit interest monthly, quarterly, or annually, and you owe tax on each year’s credited interest as it accrues.
Multi-Year CDs and OID
Some multi-year CDs don’t credit any interest until maturity. The IRS treats these under the original issue discount rules. If the maturity is more than one year, you must include a portion of the total interest in income each year even though nothing has been credited or paid to you yet.7Internal Revenue Service. Publication 550 – Investment Income and Expenses Your bank reports the yearly amount on Form 1099-OID. You owe tax on money you haven’t received, so factor that drag in before locking into a long term.
Reporting CD Income and the Penalty Deduction
Your bank reports CD interest on Form 1099-INT, due to you by January 31. The form is required whenever interest paid or credited during the year reaches $10. Box 1 shows total taxable interest, and Box 2 shows any early withdrawal penalty.3Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID
Report the Box 1 amount as interest income on your Form 1040. If Box 2 has a figure, deduct it on Schedule 1, Line 18. The Box 2 number is the ceiling for the deduction; claiming more than what your 1099-INT shows will draw IRS attention.
One thing that trips people up: even if you earn less than $10 and don’t receive a 1099-INT, the interest is still legally reportable. The IRS is clear that all taxable interest belongs on your return whether or not you get a form.5Internal Revenue Service. Topic No. 403, Interest Received
For multi-year CDs under the OID rules, watch for Form 1099-OID instead and report that amount as interest income the same way.7Internal Revenue Service. Publication 550 – Investment Income and Expenses