CD Interest Tax: How Much You'll Owe and How To Report It

Yes, interest on certificates of deposit (CDs) is taxable. It becomes taxable as it's credited to your account, whether that’s monthly, quarterly, semi-annually or annually. Taxation doesn't depend on withdrawal from the account. Here’s how much you'll actually owe on your CD interest and how to report it correctly.

Key Takeaways

• CD interest is taxable the year it's credited. The IRS treats it as income when it becomes available to you — monthly, quarterly or at maturity — even if you don't withdraw it.

• It's taxed as ordinary income. You'll pay your regular marginal rate, so $1,000 in CD interest costs about $120 at the 12% bracket, $220 at 22% and $320 at 32%, before any state tax.

• The $10 rule triggers a form, not the tax. Banks send a Form 1099-INT once you earn $10 or more in interest, but you must report all CD interest even if no form arrives.

• Schedule B kicks in above $1,500. If your combined taxable interest tops $1,500 for the year, the IRS requires you to report it on Schedule B (Form 1040).

• Tax-advantaged accounts can defer or erase the tax. CD interest inside a traditional IRA is tax-deferred until withdrawal, and a Roth IRA can let it come out tax-free.

• Early withdrawal penalties are deductible. If you break a CD early, the forfeited amount shows up in Box 2 of your 1099-INT and can be deducted as an adjustment to income.

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Is CD Interest Taxable?

Yes, CD interest is taxable. 

The IRS treats it as income when it lands in your account, no matter if you touch the money or not. A three-year CD doesn't wait until year three to create a tax bill. Rather, it creates one every single time interest gets credited, according to IRS Topic no. 403. 

That's true even if you have your CD set up to automatically reinvest your interest. As long as the interest is paid, reinvesting it doesn't affect whether or not it's taxable.

There's one carve-out worth knowing: interest earned on CDs held inside an IRA or HSA isn't taxed the same way. That gets its own section further down, so don't worry about it yet.

How Much Tax Will You Owe on CD Interest?

CD interest gets taxed as ordinary income at your regular marginal rate. Unlike other investments like stocks, which can benefit from the lower long-term capital gains rate, you'll pay the same tax rate on your CD interest as you do on your salary or wages. 

Here's what $1,000 in CD interest actually costs across three common brackets:

And that's just the amount you’ll owe the federal government. In most states, you'll have to pay state income tax on your CD interest as well. The combination can end up taking a significant amount of your CD interest income. 

Depending on your tax bracket, the amount that you can actually keep from that same $1,000 in CD interest can vary dramatically. A CD paying a high rate can feel like a windfall until you realize how much of it you might have to give up in taxes. In that sense, a CD can be a more effective income-generating investment for those in lower tax brackets, as they get to keep more of what they earn. Those in the highest brackets often look to tax-free investments for the income portion of their portfolios.

Any time you receive $10 or more in interest in a year, your bank will send you a 1099-INT, but you’re responsible for reporting all of your interest whether or not you receive a tax form. Many states tax CD interest too, so don't forget to check your specific state's rules before you file.

If you're holding a joint CD, interest generally gets reported under whichever Social Security number is listed as primary on the account. 

How To Reduce or Avoid Taxes on CD Interest

Taxation reduces the true yield of a CD. To maximize the amount you keep, you'll have to minimize your tax burden. 

There are only three real levers to reduce or avoid taxes on CD interest:

• Hold the CD inside a tax-advantaged account, like an IRA or HSA

• Deduct any early withdrawal penalty from your taxable income

• Time your CD's maturity so the interest lands in a lower-income year

The first strategy is the best, as it doesn't just delay a little tax. It can defer or even eliminate it, depending on the account type. 

The second option is a small benefit but one that's often overlooked. Plenty of people eat an early withdrawal penalty and never realize it's actually tax-deductible. 

The third choice takes some real planning. If you know a bonus or a big freelance year is coming, for example, scheduling a CD to mature before or after that spike can meaningfully change what tax bracket the interest lands in.

Here's how the tax treatment differs by account type:

Of these three options, bank CDs held in a regular investment account are generally subject to both federal and state tax. If you hold a CD in an IRA, all of that interest is tax-deferred until you withdraw it. In the case of a Roth IRA, that money can eventually come out tax-free.

For cash parked in a high-tax state, a similarly yielding Treasury bill can potentially produce a higher after-tax return than a CD because T-bill interest is state-tax-exempt, according to IRS Topic no. 403. 

How To Report CD Interest on Your Taxes

Reporting your CD interest on your taxes isn’t necessarily difficult, but it does require getting all of your paperwork in order. Here's the actual sequence of steps you should take:

1. Wait for Form 1099-INT from your bank. It’s usually available by late January.

2. If your combined interest income across all accounts tops $1,500, the IRS requires you to report it on Schedule B.

3. Even if you earn under $10 in interest and never get a 1099-INT, you still have to report the income. The filing requirement doesn't disappear just because the form didn't show up.

4. If you sold your CD before maturity and paid an early withdrawal penalty, it will appear in Box 2 of your 1099-INT. The good news is that you can deduct it as an adjustment to income, per the IRS instructions for Form 1099-INT.

If you've got money at more than one financial institution, it can be hard to keep track of all your tax forms. This could potentially result in you underreporting your income. To avoid this, keep track of all of your CDs and be sure to match them with the appropriate 1099-INT forms before you file. 

If CD interest is pushing your tax bill up meaningfully year over year, you may need to start making estimated tax payments to avoid an underpayment penalty down the line. 

FAQ

Is CD interest considered earned income?

No. Earned income comes from a job or a business, not investments, and it’s necessary in order to qualify for certain tax credits or to determine IRA contribution eligibility.

Do brokered CDs get taxed differently than bank CDs?

No. A CD is a CD, regardless of whether it is sold through a broker or directly through a bank. Brokered CDs generate the same ordinary taxable interest, and it’s typically reported the same way on a 1099-INT. What’s important from a tax perspective is the interest itself, not where a CD was bought or sold. 

Who pays taxes on interest from a jointly owned CD?

Usually whoever's Social Security number is listed first on the account is the one responsible for paying the tax on a CD. However, both owners can agree to split it differently if they keep consistent records.

Can CD interest push you into a higher tax bracket?

Yes. CD interest adds to your total taxable income just like earning a higher wage does. Your tax bracket applies to your total taxable income, not just your wages or your investment income. However, in practice, it would usually take a lot of CD interest to push you up into a higher tax bracket unless you’re already close to the cutoff.

What if I have CDs at more than one bank?

Multiple CDs at multiple banks can add to the complexity of your tax filing. You’ll need to track every account you have to ensure that you receive the proper 1099-INT forms before you file. 

Key Terms

• CD interest tax: The federal (and often state) income tax owed on interest earned from a certificate of deposit, due in the year the interest is credited to your account.

• Ordinary income: Income taxed at your regular marginal rate, such as wages and CD interest, rather than at the lower long-term capital gains rate.

• Form 1099-INT: The IRS form a bank sends when you earn $10 or more in interest in a year, summarizing your taxable interest and any early withdrawal penalty.

• Schedule B (Form 1040): The schedule used to report interest and ordinary dividends when your taxable interest or dividends exceed $1,500 for the year.

• Early withdrawal penalty: Interest or principal forfeited for cashing out a time deposit before maturity; reported in Box 2 of the 1099-INT and deductible as an adjustment to income.

• Tax-deferred: Earnings, such as CD interest inside a traditional IRA, that aren't taxed until you withdraw them.

• Tax-exempt interest: Interest not subject to a given level of tax, such as Treasury bill interest, which is federally taxable but exempt from state and local income tax.

• Estimated tax: Quarterly payments you may owe when interest and other untaxed income raise your bill enough to risk an underpayment penalty.

Sources

• IRS. Topic No. 403, Interest Received.

• IRS. About Schedule B (Form 1040), Interest and Ordinary Dividends.

• IRS. Instructions for Forms 1099-INT and 1099-OID.

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