Updated: August 29, 2026

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Cashing a certificate of deposit before maturity looks appealing when rates jump above the coupon in the drawer, and painful when rates slide below it. The break-even math sits between the bank’s disclosed penalty schedule and the reinvestment yield the customer can actually get today.

Federal law requires the depository to disclose the penalty formula at account opening. Every CD in the United States is governed by Regulation DD, the Truth in Savings Act rule at 12 CFR Part 1030. The exact schedule sits in the account agreement, not in the marketing brochure. This page decodes how banks build that schedule and how the arithmetic actually runs at withdrawal.

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The two components banks disclose

The account agreement discloses two things about early withdrawal. First, the amount of interest the customer forfeits by leaving the contract early. Second, the possibility that the penalty exceeds interest actually accrued, which can eat into the deposited principal.

The Consumer Financial Protection Bureau summarizes this rule plainly. Under Regulation DD, a depository institution must state the conditions for imposing a penalty and the method used to compute it, including whether the fee can reduce principal. That disclosure is a contractual promise, not a policy choice by branch staff.

The near-universal method is days-of-interest. The bank multiplies a set number of days by the daily interest rate on the withdrawn amount and deducts that figure. Some institutions cap the penalty at the total interest earned; most do not.

Typical penalty schedules by term

Penalty depth scales with contract length. Short CDs carry mild penalties because the bank has less duration risk. Multi-year CDs carry deeper penalties because the bank has committed a longer funding position at the customer’s rate.

Short-term CDs of 12 months or less. Typical penalty runs 90 to 180 days of simple interest at the contract rate on the withdrawn amount.
Mid-term CDs from 13 to 59 months. Typical penalty runs 180 to 365 days of simple interest.
Long-term 60-month CDs. Typical penalty runs 365 to 545 days of simple interest, and some contracts stretch further.

These are representative ranges, not a legal floor or ceiling. The exact schedule for any specific CD sits in the account disclosure signed at opening. Some large national banks publish uniform grids; many credit unions and community banks vary the number based on original term and current market conditions.

Grouped vertical bar chart of representative CD early-withdrawal penalty ranges by contract term, expressed as days of simple interest at the contract rate on the withdrawn amount. Short-term CDs of 12 months or less: minimum 90 days, maximum 180 days. Mid-term CDs of 13 to 59 months: minimum 180 days, maximum 365 days. Long-term 60-month CDs: minimum 365 days, maximum 545 days. — Figure 1. Representative early-withdrawal penalty ranges by CD term, expressed as days of simple interest at the contract rate on the withdrawn amount. The exact schedule for any specific CD sits in the account agreement. Sources: CFPB Ask CFPB explainer on certificates of deposit; FDIC Consumer News CD guidance; Regulation DD at 12 CFR Part 1030.

Contract rate, not current market rate

Banks nearly always calculate the penalty against the rate written on the original CD, not the current market rate. This matters when comparing a maturing 4 percent CD to a new offer of 6 percent, or vice versa. The penalty math uses the 4 percent, because that is the contractual coupon the customer agreed to forfeit.

A handful of specialty CDs use a bump-up or step-up structure. Even in those cases, the penalty tracks the actual rate that was accruing during the surrendered period, not a projected future rate. The account agreement is the arbiter.

Can the penalty exceed the interest earned

Yes. When a customer withdraws early enough that accrued interest is less than the calculated penalty, the bank can bill the shortfall against principal. Regulation DD explicitly requires the depository to disclose this possibility when it applies.

The FDIC Consumer News guidance on CDs frames the outcome the same way. A depositor who breaks a 5-year CD 30 days after funding can lose more than the small amount of interest earned, because the disclosed penalty formula stands on its own arithmetic. The deposited principal absorbs the difference.

Some banks voluntarily cap the penalty at total interest earned. That policy has to appear in writing in the account agreement to be enforceable in the customer’s favor. Marketing copy on a landing page does not bind the bank.

Worked example: 12-month CD, short-term math

Assume a $50,000 12-month CD opened at 4.5 percent APY, closed after 3 months, with a 90-day interest penalty at the contract rate. The daily simple-interest factor is 4.5 percent divided by 365, or roughly 0.01233 percent per day.

Interest actually accrued in 3 months: roughly $50,000 x 4.5 percent x 90 / 365 = about $555.
Disclosed 90-day interest penalty on the withdrawn amount: also about $555.
Net proceeds after penalty: about $50,000 in principal, zero net interest, and no incremental cost against principal.

Numbers rounded. If the customer had held to maturity the interest would have compounded to roughly $2,250 at 4.5 percent APY, and the entire figure would have arrived at month 12. The early-exit trade lost the full year of accrual to gain immediate liquidity of the same principal.

Worked example: 5-year CD, break-even math

Assume a $100,000 5-year CD opened at 5 percent APY, 18 months into the term, with a 365-day interest penalty at the contract rate. Interest accrued through month 18 sits near $7,500. The 365-day penalty is $100,000 x 5 percent, or $5,000.

Net cash out after penalty: roughly $100,000 principal plus $7,500 accrued interest minus $5,000 penalty, or about $102,500. Remaining term to original maturity is 42 months.

The break-even question is straightforward. What reinvestment rate over the next 42 months produces the same terminal value as holding the original CD to maturity? If a new 42-month CD is available at a materially higher rate than 5 percent, breaking may pay. If it is not, holding usually wins.

Directional context matters. CD rates have declined from their 2024 peak, so a retiree comparing offers as of 2026 should verify current national rates on the FDIC weekly release before deciding. Direction, not intuition, drives the break-even.

Tax treatment of the penalty

For a regular taxable CD held outside a retirement account, the early-withdrawal penalty is deductible above the line on the federal return. The IRS Instructions for Form 1040 direct filers to enter it on Schedule 1 as an adjustment to income. The bank reports the penalty amount in box 2 of Form 1099-INT.

Above the line is meaningful. The deduction reduces adjusted gross income even for filers who take the standard deduction. It also reduces the base used to compute Medicare income-related monthly adjustment amounts and taxable Social Security in the same tax year.

For an IRA CD, the calculation flips. Interest inside the IRA is already tax-deferred, so there is no separate deduction for a penalty that reduces the IRA balance. The wrapper defers everything, and the reduced balance is simply a smaller pool that will be taxed on distribution.

Exceptions where the penalty is waived

Regulation DD carves out a narrow federal exception. Under 12 CFR 1030.11(a)(1), a depository does not have to impose the early-withdrawal penalty on funds withdrawn following the death of any account owner. That waiver applies whether the CD is held individually or jointly.

Some banks add contractual waivers for disability, particularly on retirement CDs. These are policy choices, not federal mandates, and the specific triggers sit in the account agreement.

For an IRA CD held by an account owner subject to required minimum distributions, many banks waive the penalty on the RMD amount only. This lets the retiree meet the SECURE 2.0 age-73 distribution requirement without paying to unlock the CD ahead of maturity. The RMD-only waiver is a common industry practice, not a legal requirement.

What this means at the maturity decision

The comparison at maturity or near-maturity comes down to three numbers. The remaining accrued interest that would land at the contracted maturity date. The penalty that would apply on an early exit today. And the reinvestment yield actually available on a new CD or an alternative fixed-income instrument.

Retirees holding IRA CDs have one built-in flexibility. An IRA CD can be rolled directly to any IRA type at another custodian with no taxable event, provided the transfer is trustee-to-trustee. The early-withdrawal penalty inside the CD still applies, but no federal tax is due, and no 10 percent additional tax attaches to the movement itself.

The account agreement is the source of truth. Ask the bank for the exact penalty in dollars before signing the withdrawal form. Compare that dollar figure to the interest the same balance would earn in the reinvestment vehicle over the remaining term. That single side-by-side is what the disclosure rule is designed to enable.

CD Early Withdrawal Penalty Math: How Banks Actually Calculate It