Yes, interest earned in a business savings account is taxable income

Any interest your business savings account earns counts as taxable income to your business. The bank reports this interest to the IRS on a 1099-INT form, and you report it on your business tax return. The tax rate depends on your business structure — a sole proprietorship pays at your personal income tax rate, while an S-corp or C-corp pays at the corporate rate.

The IRS taxes the interest in the year you earn it, even if you don't withdraw the money. This is called accrual-basis taxation. If your account earned $500 in interest during 2024, you owe tax on that $500 in 2024, regardless of whether the money sits in the account or you spend it.

The amount of tax you actually pay depends on your total business income and your tax bracket. A business earning $50,000 a year will pay a different rate on that interest than one earning $500,000, because both federal and state taxes are progressive — the more you earn, the higher your rate climbs.

Key Takeaways

  • Banks report business savings account interest to the IRS on Form 1099-INT, and you must report it as income on your business tax return.
  • Interest is taxed in the year you earn it, not when you withdraw it, so a $500 interest credit in December 2024 is taxable in 2024.
  • Your tax rate on the interest depends on your business structure (sole proprietorship, LLC, S-corp, or C-corp) and your total business income.
  • Interest earned in a business account is taxed differently than interest in a personal savings account, because business income has different deduction rules.
  • Some business structures allow you to deduct certain expenses that reduce your taxable income, which lowers the effective tax on your interest earnings.

How the 1099-INT form works and when you receive it

Your bank sends you a 1099-INT by January 31 each year for any interest of $10 or more earned during the previous year. The form shows the total interest paid to your account. The bank also sends a copy to the IRS, so the agency already knows about the income before you file your return.

If your account earned less than $10 in interest, the bank may not send a 1099-INT, but you still owe tax on that interest. You report it on your return even without the form. If you don't receive a 1099-INT by early February and you believe you should have, contact your bank directly — they can issue a corrected form or confirm the amount.

When you file your business tax return, you report the 1099-INT amount on the appropriate line. For a sole proprietor, this goes on Schedule C. For an LLC taxed as a corporation, it goes on the corporate return. Your accountant or tax software will guide you to the right place based on your business structure.

Tax rates vary by business structure

A sole proprietorship pays tax on business savings interest at your personal income tax rate. If you're in the 24% federal tax bracket, the interest is taxed at 24%. You also owe state income tax on it (if your state has one), which can add another 3% to 13% depending on where you live.

An S-corporation or partnership doesn't pay federal income tax itself. Instead, the interest "passes through" to the owners' personal returns, and each owner pays tax at their personal rate on their share. This can be more efficient if you have multiple owners in different tax brackets.

A C-corporation pays federal corporate income tax at a flat 21% rate (as of 2024), plus state corporate tax if your state charges it. The interest is taxed at the corporate level. If you then withdraw the money as a dividend, you pay personal income tax on it again — this is called "double taxation" and is one reason some businesses choose other structures.

An LLC can choose how it's taxed. By default, a single-member LLC is taxed like a sole proprietorship, and a multi-member LLC is taxed like a partnership. You can elect to be taxed as an S-corp or C-corp instead if that's more advantageous for your situation.

State and local taxes on business savings interest

Most states with an income tax tax business savings interest the same way they tax other business income. The rate varies widely — from 0% in states like Texas and Florida to over 13% in states like California and New York. Some states also charge a separate business tax or franchise tax on top of income tax.

A few states have no income tax at all (Texas, Florida, Nevada, South Dakota, Tennessee, Washington, and Wyoming), so business savings interest is only subject to federal tax in those states. If your business is based in one of these states, you save the state income tax portion, but you still owe federal tax.

If your business operates in multiple states, you may owe tax in more than one state. The rules depend on where you have employees, customers, or property. This is complex territory — if you operate across state lines, a tax professional can help you understand your obligations.

How deductions reduce the tax on your interest earnings

Business interest earnings are taxed as income, but you can reduce your total taxable income through business deductions. If your business spent $10,000 on supplies, $5,000 on rent, and $2,000 on software, you deduct those from your revenue before calculating tax. Your interest earnings are added to your income, but your deductions lower the total amount taxed.

For example: if your business earned $50,000 in revenue and $500 in savings account interest, your total income is $50,500. If you have $20,000 in deductible expenses, your taxable income is $30,500. You pay tax on $30,500, not $50,500. The interest is part of that $50,500, but the deductions apply to your whole income, including the interest.

Common business deductions include office supplies, equipment, rent, utilities, insurance, vehicle expenses, professional fees, and employee wages. You can only deduct expenses that are ordinary and necessary for your business. Personal expenses don't count, even if you use them partly for work.

Interest earned in a business account versus a personal account

Interest in a personal savings account is also taxable, but the tax treatment is simpler. You report it on your personal tax return at your personal income tax rate. You can't deduct personal expenses against it the way you can with business income.

Interest in a business savings account is part of your business income, which means it's subject to self-employment tax if you're a sole proprietor or partner. Self-employment tax covers Social Security and Medicare and runs about 15.3% on top of your income tax. A personal savings account interest doesn't trigger self-employment tax.

This is one reason some business owners keep business and personal savings separate — it makes tax reporting clearer and ensures you're paying the right amount of self-employment tax. Mixing business and personal money can create confusion at tax time and may raise red flags with the IRS.

What happens if you don't report the interest

The IRS receives a copy of every 1099-INT your bank sends. If you don't report the interest on your tax return, the IRS will notice the discrepancy. They may send you a notice asking for the missing income, plus penalties and interest on the unpaid tax.

The penalty for not reporting income is typically 20% of the underpaid tax, plus interest that compounds daily. If the IRS determines the omission was intentional fraud rather than an honest mistake, the penalty can be as high as 75%. Even if it was a mistake, you'll owe back taxes plus the penalty and interest, which can add up quickly.

If you realize you missed reporting interest in a prior year, you can file an amended return for that year. It's better to correct it yourself than to wait for the IRS to catch it, because the IRS is more likely to work with you if you come forward first.

Frequently Asked Questions

Do I have to report interest if it's less than $10?

Yes. The bank doesn't have to send you a 1099-INT for interest under $10, but you still owe tax on it. Report it on your business tax return even without the form. The IRS doesn't know about it unless you tell them, but failing to report it is still tax evasion if you're audited.

Can I deduct the taxes I pay on the interest?

No. Income taxes are not deductible as a business expense. You pay tax on the interest, and that's separate from your business deductions. However, if you pay an accountant or tax professional to help you file your return, that fee is deductible as a business expense.

What if my business is a nonprofit or tax-exempt organization?

Nonprofits and tax-exempt organizations generally don't pay federal income tax on their interest earnings. However, they must still file annual information returns with the IRS (Form 990 or 990-N) that disclose all income, including interest. State rules vary — some states tax nonprofit interest, others don't.

Does moving money between my business and personal accounts change the tax?

No. The interest is taxable in the year it's earned, regardless of whether you move the money later. Transferring funds from a business account to a personal account doesn't create a new tax event — you've already owed tax on the interest when the bank credited it to your account.

Can I avoid taxes by keeping my savings in a money market account instead of a savings account?

No. Any interest earned on business funds — whether in a savings account, money market account, certificate of deposit, or other vehicle — is taxable income. The type of account doesn't matter. The tax is based on the interest earned, not the account type.