跳到主要内容
CD Calculator

CD Early Withdrawal Penalty Calculator

算清提前解约你的 CD 到底要付出多少代价。

收取的罚息
−US$500.00
净收入
US$26,045.83
您的存单与提前支取
$
%

5 年

1 年 6 月 into a 5 年 term

罚息(利息月数)

复利频率

已获得利息
US$1,545.83
收取的罚息
−US$500.00
净收入
US$26,045.83

Effective 2.77% APY on the money

Your principal is safe. After the US$500.00 penalty you still keep US$1,045.83 of interest, walking away with US$26,045.83.

What you give up by leaving early

Held to maturity (5 年)US$5,534.73
Withdrawn at month 18, after penaltyUS$1,045.83

Leaving early costs you US$4,488.91 in interest you would otherwise have earned.

Penalty modelled as N months of simple interest on principal — the most common bank structure. Check your disclosure: some banks charge a flat fee or a percentage of principal instead.

  • 免费 — 无需注册
  • 输入即时更新
  • 在您的浏览器中运行

公式与内容最后审核于 . 银行利率变动频繁——请直接向你的开户机构确认当前利率。

简短回答

CD 提前支取罚息是怎么计算的?

A CD early withdrawal penalty is normally quoted as a number of months of interest — commonly around 3 months on terms under a year and 6 to 12 months on longer terms — and computed as Penalty = P × r × (penalty months ÷ 12). Take $25,000 in a 5-year CD at 4.00%, closed after 18 months: you have earned $1,545.83, the 6-month penalty is $500.00, and you walk away with $26,045.83. The figure to watch is the relationship between those first two numbers. Federal rules permit the penalty to reduce principal, so closing early enough that the penalty exceeds the interest earned returns less than you deposited — the one scenario in which an insured CD loses money. Penalty structures vary: a minority of institutions charge a flat fee or a percentage of principal instead, so check your disclosure.

公式与方法

计算方式

Penalty = P × r × (penalty months ÷ 12)

Penalties are charged as simple interest on the principal, not on the accrued balance.

P
Principal — your original deposit
r
The CD's annual rate as a decimal
penalty months
Months of interest forfeited, from your disclosure

分步说明

  1. 1

    Find the penalty in your CD disclosure, stated as N months of interest.

  2. 2

    Multiply your principal by the annual rate to get a full year of interest.

  3. 3

    Multiply by penalty months ÷ 12 to scale it to the penalty period.

  4. 4

    Calculate the interest actually earned up to the withdrawal date.

  5. 5

    Subtract the penalty from that interest. A negative result means the shortfall is taken from your principal.

使用指南

如何使用本计算器

输入四项参数,结果实时呈现。无需提交,也无需注册。
  1. 1

    Enter the CD's details

    Deposit, rate and the original term — the same values from when you opened the account.

  2. 2

    Set when you would withdraw

    Drag the withdrawal month. The tool computes interest earned to that point and applies the penalty against it.

  3. 3

    Enter the penalty in months

    Take this from your disclosure. Three months is typical for short terms, six to twelve for multi-year CDs.

  4. 4

    Check the warning

    If the penalty exceeds interest earned, the tool flags that your principal will be reduced — you would get back less than you deposited.

示例

实例演算

真实数字,完整推演到底——你可以用自己的数据来核对计算器的结果。

Breaking a 5-year CD at month 18

输入项

Deposit
$25,000
Rate
4.00%
Original term
60 months
Withdraw at
Month 18
Penalty
6 months of interest

结果

Interest earned
$1,545.83
Penalty charged
−$500.00
Net proceeds
$26,045.83

You keep $1,045.83 of interest. Painful, but principal is untouched because 18 months of accrual exceeded the 6-month penalty.

Breaking the same CD at month 3

输入项

Withdraw at
Month 3
Penalty
6 months of interest

结果

Interest earned
$251.24
Penalty charged
−$500.00
Net proceeds
$24,751.24

Here the penalty is larger than the interest earned, so $248.76 comes straight out of the $25,000 principal.

方法论

精确度与假设条件

每一个计算器都有其假设前提。以下是我们的假设,明确列出,让你清楚知道这些数字涵盖了什么、又没有涵盖什么。
  • The penalty is quoted as months of simple interest on the principal — the most common structure, but some banks use a flat fee or a percentage of principal instead.

  • The bank permits early withdrawal at all. Some CDs are non-negotiable before maturity.

  • No partial withdrawal is modelled; the calculation assumes closing the full CD.

  • Grace periods after maturity, during which you can withdraw penalty-free, are not included.

计算惯例遵循 Regulation DD(12 CFR 1030),该法规规定了美国金融机构如何披露存款账户的 APY。受保机构的存款由 FDIC 提供保障,按每位存款人、每家银行、每种所有权类别计算,最高保额 $250,000。

一手来源

这些规则从何而来

本计算器遵循的惯例由监管机构制定,而非由我们自行设定。每一条都链接到发布机构,你可以自己去核对,而不必只听我们说。

细节

关键细节与规则

在开立或续存 CD 之前值得快速浏览的要点。
  • Federal rules permit the penalty to reduce principal — 'you can lose money on a CD' is only true in this scenario.

  • Typical schedule: terms under 12 months carry about 3 months of interest; 1–3 years around 6 months; 4+ years 9 to 12 months.

  • No-penalty (liquid) CDs exist and let you withdraw after the first week, usually at a lower rate.

  • Penalties are deductible on your federal return as an adjustment to income — they appear in Box 2 of Form 1099-INT.

  • If a higher rate is available elsewhere, breaking a CD can still be net-positive. Compare the penalty against the extra interest from switching.

适用场景

本计算器适合哪些人

  • Savers who need cash early

    An unexpected expense has come up and you need to know the real cost of accessing the money.

  • Rate switchers

    Rates have risen since you locked in and you want to know if breaking out is worth it.

  • Pre-purchase researchers

    You are comparing CD terms and want to price the downside before you commit.

常见问题

CD Early Withdrawal Penalty Calculator常见问题

针对这项计算被问得最多的问题,给出直接答案。更多内容见 常见问题汇总
  • Penalty = P × r × (penalty months ÷ 12), where P is the principal, r is the CD's nominal rate as a decimal, and the penalty months come from your disclosure. It is simple interest on the full principal, not on the interest you happened to earn, and it does not shrink because you left near the end of the term. Take $25,000 in a five-year CD at 4.00%, closed after 18 months with a six-month penalty: 25,000 × 0.04 × 0.5 gives $500.00. You had earned $1,545.83, so you keep $1,045.83 of it and walk away with $26,045.83. Typical schedules run around three months of interest on terms under a year, six months on one-to-three-year terms, and nine to twelve months beyond that — but a minority of institutions charge a flat fee or a percentage of principal instead.

安全与隐私

你的数字绝不会离开浏览器

本站的每一次计算都以 JavaScript 在你自己的设备上运行。没有账户、没有服务器请求,也没有任何分析统计与你输入的数字挂钩。
  • 银行标准的公式

    采用与银行在 Regulation DD 下相同的复利和 APY 计算惯例。

  • 100% 免费,无需登录

    无需注册、无邮箱门槛、无付费墙。每个计算器首次访问即可完整使用。

  • 你的数据绝不离开浏览器

    每一次计算都以 JavaScript 在客户端运行。不会向服务器发送或保存任何内容。

通过 HTTPS 提供服务,无混合内容。阅读我们的 隐私政策 ,或查看每一个数字背后的 公式与方法论

Price the exit before you need it

Knowing the penalty in advance is how you pick the right term. See what an early withdrawal would actually cost you.