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For a U.S. corporation, an unpaid federal income-tax bill can grow through penalties and interest. If it remains unpaid, the IRS may file a tax lien and, after required notices and collection procedures, levy business property or funds. The exact outcome depends on what is owed, whether the return was filed, and the notices the company has received.
First, distinguish the tax from the penalty
An unpaid tax balance and an assessed penalty are separate charges on a company’s account. A corporation that pays late may owe a failure-to-pay penalty in addition to the tax. Interest also accrues on unpaid amounts; the applicable rate changes quarterly. The IRS explains the interest rules at IRS Interest.
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For corporate income tax, the IRS says the failure-to-pay penalty is generally 0.5% of unpaid tax for each month or part of a month, up to 25%. The IRS may increase the rate to 1% per month after the specified notice-of-intent-to-levy trigger. A qualifying installment agreement may reduce the rate to 0.25% per month in the circumstances described by the IRS. These rates depend on the account and circumstances; check the applicable IRS guidance and the company’s notice. See IRS Publication 542 and IRS Interest.
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Interest generally begins on the tax due date and continues until payment in full. It can also accrue on unpaid penalties. The IRS’s current interest rate varies by quarter, so a rate from an earlier period may not apply to the company’s balance.
Late filing and estimated-tax penalties are separate issues
If the corporation filed its return late
A corporation that also files late may face a failure-to-file penalty, generally 5% of unpaid tax for each month or part of a month, up to 25%. For months when both penalties apply, the failure-to-file amount is reduced by the failure-to-pay penalty. An extension to file does not extend the deadline to pay. See IRS Publication 542 and IRS Interest.
If the corporation missed estimated-tax installments
A corporation may separately owe an estimated-tax underpayment penalty when required installments are late or insufficient. The IRS calculates it by installment, considering the underpayment amount, the period it remained unpaid, and the applicable quarterly underpayment rate. It is not the same calculation as the general late-payment penalty. See IRS Publication 542.
What the IRS may do if the debt remains unpaid
A lien is a legal claim, not a seizure
After assessment, notice and demand for payment, and failure to pay by the deadline, a federal tax lien may arise. A filed Notice of Federal Tax Lien alerts creditors. The lien can attach to business property and rights to business property, including accounts receivable, and may affect the company’s credit. It does not itself seize property. The IRS explains the distinction at Understanding a Federal Tax Lien.
A levy takes property to satisfy the debt
A levy is the legal seizure of property to satisfy a tax debt. Depending on the circumstances, the IRS may levy bank funds, income, vehicles, real estate, or other property. A missed payment does not mean the IRS immediately seizes assets: collection actions follow required procedures and notices. If the company receives a Final Notice of Intent to Levy and Notice of Your Right to a Hearing, it should respond promptly using the notice’s instructions. See IRS Levy.
Options when the company cannot pay in full
The IRS lists payment plans, offers in compromise, and temporary collection delays among the options that may be available to business taxpayers. Eligibility and terms depend on the company’s circumstances; none automatically erases the debt.
- Pay in full: This stops further interest from accruing on the paid amounts. Follow the payment instructions on the company’s IRS notice or use the IRS’s business collection guidance at Collection Process for Taxpayers Filing and/or Paying Late.
- Installment agreement: A payment plan can spread payments over time, but interest continues on unpaid amounts. See IRS Payment Plans.
- Offer in compromise: The IRS may accept a settlement for less than the full amount if the company meets its eligibility requirements. An offer is reviewed and is not guaranteed. See IRS Offer in Compromise.
- Temporary delay: The IRS may temporarily delay collection in some cases. The balance can continue to accrue interest while collection is delayed. See IRS business collection guidance.
Use the contact information and deadlines on the company’s own notice. Promptly addressing a notice can help the company understand its options before collection advances.
Can the owner be held personally responsible?
Corporate income-tax debt does not automatically become an owner’s personal debt. A distinct rule applies to certain employee withholding taxes: the trust fund recovery penalty can apply to a responsible person who willfully fails to collect, account for, or pay specified trust-fund taxes. It can reach the unpaid trust-fund amount. This is not a general personal-liability rule for corporate income-tax penalties. See IRS Publication 542.
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Some failure-to-file or failure-to-pay penalties may qualify for first-time abatement or reasonable-cause relief. Approval is not automatic. Interest follows different rules: reasonable cause alone generally does not remove interest, although related interest may be reduced if the underlying tax or penalty is reduced. The company should verify eligibility and follow the IRS instructions for its specific account.
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