Certificate of Non-Attachment — When the IRS Lien Does Not Apply — Definition Glossary

Defined by Sarah Mitchell, CPA | Reviewed by: James Okafor, EA | Updated May 2026

Full Definition

A Certificate of Non-Attachment of Federal Tax Lien is an IRS document that certifies a specific person or piece of property was erroneously included in a federal tax lien or was never actually attached by the lien. This certificate is different from a Certificate of Release (which confirms the lien is extinguished because the debt is paid) — a Certificate of Non-Attachment confirms the lien should never have applied to the specific person or property. Certificates of Non-Attachment are most commonly issued when: a business partner or co-owner is incorrectly identified in a lien filed against the business, a spouse’s separate property is erroneously encumbered by a lien for the other spouse’s tax debt, or a successor business owner’s personal assets are incorrectly attached by a lien for the prior owner’s business tax debt. Obtaining a Certificate of Non-Attachment requires a written application to the IRS with documentation demonstrating the erroneous attachment.

Why This Matters for Businesses With Tax Debt

Understanding Certificate of Non-Attachment — When the IRS Lien Does Not Apply is essential for any business owner navigating IRS enforcement or business tax debt. This term directly affects the resolution options available — including whether tax debt financing is a viable solution, how federal tax liens affect the business, and what the IRS can legally collect.

Related Tax Terms

• Federal Tax Lien
• Certificate of Release
• Tax Lien Priority

Is Your Business Facing This Situation?

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Type of Tax Debt *-- Select Tax Debt Type --IRS 941 Payroll Tax DebtFederal Tax LienIRS Bank Levy (Active Now)Trust Fund Recovery Penalty (TFRP)State Tax DebtOIC Bridge FinancingMultiple Types

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Sources: IRS.gov; Internal Revenue Code (IRC); IRS Publications 1, 594, 1660, 594. Tax Funds is a financing marketplace — not a lender, CPA firm, or law firm. Content is for informational purposes only and does not constitute tax or legal advice.