Whether you pay taxes on CD interest before maturity depends on the CD’s term. If your certificate of deposit runs one year or less, you generally report the interest in the year it’s credited to you, which is usually at maturity. If the term is longer than one year, the IRS requires you to report a portion of the interest each year as it accrues, even though the bank hasn’t paid you yet.1Internal Revenue Service. Publication 550 (2025), Investment Income and Expenses So yes, a multi-year CD creates a tax bill every year of its term, not just at the end.
Why Timing Works This Way
The controlling idea is constructive receipt. You owe tax on interest the year it is credited to your account or otherwise made available to you, whether or not you actually withdraw it.1Internal Revenue Service. Publication 550 (2025), Investment Income and Expenses A common assumption is that having to pay an early withdrawal penalty to get at the money postpones the tax. It does not. The IRS doesn’t treat that penalty as a “substantial limitation” on your control over the funds, so the interest is still considered available to you.2eCFR. 26 CFR 1.451-2 – Constructive Receipt of Income
One point on rate before the timing details: CD interest is taxed as ordinary income at your marginal rate, not at the lower long-term capital gains rate.3Internal Revenue Service. Topic No. 403, Interest Received Rates for 2026 run from 10% up to 37% depending on total income and filing status.4Tax Foundation. 2026 Tax Brackets and Federal Income Tax Rates That treatment holds whether you’re reporting interest at maturity or accruing it year by year.
Short-Term CDs: Tax at Maturity
For a CD with a term of one year or less, the math is simple. The bank typically credits the interest when the CD matures, and you report it on the return for that year. Open a six-month CD in September 2026 that matures in March 2027, and the interest lands on your 2027 return. Nothing to report in the meantime.
Multi-Year CDs: Tax Each Year Before Maturity
CDs with terms longer than one year fall under the original issue discount (OID) rules. Those rules exist precisely to stop taxpayers from parking money in a long CD and deferring all the interest until the end. Instead, you report a share of the total interest each year as it accrues.1Internal Revenue Service. Publication 550 (2025), Investment Income and Expenses The annual amount is figured using a constant-yield method based on the CD’s yield to maturity.5GovInfo. 26 USC 1272 – Current Inclusion in Income of Original Issue Discount
Buy a five-year CD, and you’ll have interest income to report in each of those five years. The bank will send you a Form 1099-OID each January showing the amount for the prior year. You have to include it on your return whether or not any cash has changed hands.
That creates a cash-flow issue people don’t always see coming. The CD hasn’t paid you yet, but the tax bill is real, and it has to come from other funds. If you’re planning to lock money into a long CD, budget for the annual tax on paper interest, or consider holding that CD somewhere the accrual doesn’t trigger tax (see below).
How to Report It Each Year
Your bank or credit union sends one of two forms each January covering the prior year:
- Form 1099-INT for standard CDs that pay interest periodically or at maturity.
- Form 1099-OID for multi-year CDs subject to the accrual rules.
Either form is issued when the interest paid or accrued during the year is $10 or more.6Internal Revenue Service. About Form 1099-INT You put the interest on your Form 1040. If total taxable interest from all sources tops $1,500 for the year, you also file Schedule B.7Internal Revenue Service. About Schedule B (Form 1040)
If interest was under $10 and no form arrived, you’re still required to report it. And if a 1099 was issued but the interest doesn’t show up on your return, the IRS’s automated matching will flag the return. That typically produces a CP2000 notice proposing additional tax plus interest running from the original filing deadline.8Internal Revenue Service. Topic No. 652, Notice of Underreported Income – CP2000 The matching runs on every return, so a missing 1099-OID from a multi-year CD is one of the more reliable ways to draw a notice.
Estimated Tax Payments on Accrued Interest
If your CD interest is meaningful and no employer is withholding taxes for you, you may need to make quarterly estimated payments to avoid an underpayment penalty. The IRS expects tax to be paid as income is earned, not at April filing time. You can generally avoid the penalty if you’ll owe less than $1,000 at filing, or if you’ve paid at least 90% of the current year’s tax or 100% of last year’s through withholding and estimated payments.9Internal Revenue Service. Topic No. 306, Penalty for Underpayment of Estimated Tax
Retirees and self-employed people with substantial CD holdings are the most likely to trip this wire, since they don’t have W-2 withholding covering the interest. A simpler workaround than mailing quarterly checks: if you receive Social Security or a pension, ask the payer to raise federal withholding enough to cover the expected CD tax.
How to Avoid Owing Tax Before Maturity
The cleanest way to avoid annual tax on CD interest is to hold the CD inside a tax-advantaged retirement account. The account type controls the tax treatment, and the OID accrual rules don’t produce a current tax bill.
Traditional IRA
A CD held inside a Traditional IRA grows tax-deferred. You report nothing each year, and multi-year OID accrual doesn’t create a current tax hit. You pay ordinary income tax on withdrawals in retirement.10Internal Revenue Service. Traditional IRAs Withdrawals before age 59½ generally trigger income tax plus a 10% early distribution penalty.
Roth IRA
A CD held inside a Roth IRA is the strongest option for avoiding tax on the interest at all. You fund the account with after-tax dollars, and the interest grows tax-free. Qualified distributions, which generally require the account to be at least five years old and the owner to be at least 59½, come out with no federal tax.11Internal Revenue Service. Roth IRAs Roth accounts have income limits and annual contribution caps, so only a limited amount of CD savings can be sheltered this way.
If you already own a CD in a regular taxable account, moving it into an IRA isn’t straightforward, and the accrual rules keep running until the CD is inside a sheltered account. The decision to hold CDs inside an IRA is best made when the CD is opened, not after.