IRC 6330 and 6320: Collection Due Process Statutory Framework, Hearing Rights, Tax Court Jurisdiction, and Case Law Through 2026

1. Overview: What IRC 6330 and IRC 6320 Do

IRC 6330 and IRC 6320 (verify at IRS.gov and in current IRC text) are the two Collection Due Process (CDP) statutes enacted by the IRS Restructuring and Reform Act of 1998 (RRA 1998, Pub. L. 105-206). Together they give taxpayers a statutory right to notice and an opportunity for a hearing before the IRS takes two categories of collection action: (1) filing a Notice of Federal Tax Lien (NFTL) under IRC 6323 -- triggering IRC 6320 rights; and (2) levying on property under IRC 6331 -- triggering IRC 6330 rights. Prior to 1998, the IRS could file a lien or levy on property without any pre-action notice requirement or any right to an independent hearing. RRA 1998 created these rights as a centerpiece of the taxpayer bill of rights reforms.

The two statutes are structurally parallel but procedurally distinct: IRC 6320 applies to lien filings (NFTL), requires the IRS to notify the taxpayer within 5 business days of the lien filing, and gives the taxpayer 30 days from that notice to request a hearing. IRC 6330 applies to levy actions, requires a pre-levy notice (Final Notice of Intent to Levy), and gives the taxpayer 30 days from the notice to request a hearing. Both provide the right to a hearing before an Appeals Officer who has had no prior involvement in the matter, the right to raise collection alternatives and appropriateness challenges, and (in limited circumstances) the right to contest the underlying tax liability. Both provide the right to Tax Court review of an adverse Appeals determination. Verify all current IRC 6320 and 6330 requirements at IRS.gov and in current IRC text.

2. Legislative History: RRA 1998 and the Enactment of CDP Rights

Before RRA 1998, the IRS had essentially unilateral authority to levy on taxpayer assets after the basic statutory prerequisites were met (assessment, demand for payment, and failure to pay). The only administrative remedies available were the Collection Appeals Program (an IRS administrative program without statutory basis) and the existing Tax Court remedies (which were not available once assessment occurred without a deficiency). High-profile Congressional hearings in 1997 and 1998 highlighted IRS collection abuses, and the RRA 1998 responded with a package of taxpayer-rights reforms of which CDP was the most significant.

IRC 6330 and 6320 were enacted as Section 3401 of RRA 1998 and became effective for liens filed and levies made after January 18, 1999 (verify the exact effective date at IRS.gov). The legislative history (H.R. Rep. 105-599; verify current citation) reflects Congress's intent to give taxpayers a meaningful independent review of collection actions before they occur, while preserving the IRS's ability to take expedited action in jeopardy situations. The balance between taxpayer protection and collection efficiency has been a recurring theme in Tax Court and appellate CDP case law ever since.

3. IRC 6320: The Lien CDP Right -- NFTL Filing, 5-Day Notice, and 30-Day Hearing Window

IRC 6320(a) (verify at IRS.gov and in current IRC text) requires the IRS to provide notice to a taxpayer no later than 5 business days after the filing of a Notice of Federal Tax Lien (NFTL) under IRC 6323. The notice must include: (1) the amount of unpaid tax; (2) the right of the person to request a hearing during the 30-day period beginning on the day after the 5-day notice period expires; and (3) the administrative appeals available to the person. The 5-business-day notice period begins on the date the NFTL is filed with the applicable state or local filing authority (typically the county recorder, Secretary of State, or equivalent). Verify the current IRC 6320 notice requirements, acceptable notice forms, and triggering events at IRS.gov and in current IRC text.

3.1 Scope of the Lien CDP Hearing

At a CDP hearing under IRC 6320, the taxpayer may raise the same three categories of issues available at a levy CDP hearing under IRC 6330(c)(2): collection alternatives, appropriateness of the collection action, and (in limited circumstances) the underlying liability (subject to the prior-opportunity limitation in IRC 6330(c)(2)(B), which applies to both lien and levy CDP hearings by cross-reference in IRC 6320(c)). The scope of the lien CDP hearing is identical to that of the levy CDP hearing in these respects. Verify the current scope of lien CDP hearing rights at IRS.gov and with qualified legal counsel.

3.2 Lien CDP vs. Equivalent Hearing: Practical Differences

A taxpayer who misses the 30-day deadline for an IRC 6320 lien CDP hearing may still request an equivalent hearing within 1 year of the notice date (verify at IRS.gov). The equivalent lien hearing, like the equivalent levy hearing, does not toll the CSED and does not carry Tax Court review rights. For the lien-CDP specifically, note that the existence of the NFTL itself -- which was already filed before the CDP hearing is concluded -- is not automatically released as a result of the CDP hearing; the hearing addresses the appropriateness of the lien action and available alternatives, but does not undo the lien filing that triggered the right. Verify all current lien CDP procedures and the impact on lien status at IRS.gov and with qualified legal counsel.

4. IRC 6330: The Levy CDP Right -- Final Notice, 30-Day Pre-Levy Window, and Hearing Scope

IRC 6330(a) (verify at IRS.gov and in current IRC text) requires the IRS to provide notice of its intent to levy -- typically by mailing a Final Notice of Intent to Levy (Letter 1058 or LT11) or a Notice and Demand for Payment -- at least 30 days before the proposed levy date. The taxpayer has 30 days from the date of the notice to request a CDP hearing by filing Form 12153 with the IRS. The IRS may not levy during the 30-day period or while a CDP hearing is pending (with exceptions for jeopardy levies and certain continuous levies on wages). Verify the current IRC 6330 notice requirements, jeopardy levy exceptions, and levy-stay provisions at IRS.gov and in current IRC text.

4.1 Jeopardy Levies: When IRC 6330 CDP Rights Do Not Apply

IRC 6330(f) (verify at IRS.gov and in current IRC text) provides that the pre-levy notice and hearing requirement does not apply in cases of jeopardy -- when collection of the tax is in jeopardy (IRC 6861) or when the taxpayer has signed a waiver of the right to prior notice and hearing. In a jeopardy levy case, the IRS may levy without providing the 30-day pre-levy notice; however, the taxpayer is still entitled to a post-levy CDP hearing within 30 days of the levy. The post-levy CDP hearing provides the same substantive rights as the pre-levy CDP hearing (including Tax Court review), but the levy has already been executed. Verify the current jeopardy levy exception standards and post-levy CDP hearing rights at IRS.gov and with qualified legal counsel.

5. Issues That May Be Raised Under IRC 6330(c)(2)

IRC 6330(c)(2) (verify at IRS.gov and in current IRC text) is the scope-of-issues provision: it defines what a taxpayer may raise at a CDP hearing. The three permitted categories are:

5.1 Collection Alternatives

The taxpayer may propose and the Appeals Officer must consider collection alternatives: installment agreements (IA), offers in compromise (OIC), currently-not-collectible (CNC) status, posting of a bond, and any other alternative that may make the proposed collection action unnecessary or less intrusive. The Appeals Officer has discretion to accept, reject, or propose modifications to collection alternatives, but the discretion must be exercised within the bounds of administrative reasonableness -- an Appeals Officer who rejects a collection alternative without explaining why the financial information submitted does not support it, or without asking the taxpayer to supplement deficient information, may be found to have abused discretion on Tax Court review (see Section 9 below on Tooke). Verify the current collection-alternative standards and documentation requirements at IRS.gov and with qualified legal counsel before any CDP hearing.

5.2 Appropriateness Challenges

The taxpayer may challenge whether the proposed levy or lien filing is "appropriate" given all the facts and circumstances. An appropriateness challenge typically argues that the IRS's proposed collection action is disproportionate to the liability, that the action would create unnecessary economic hardship, or that the IRS has not balanced the need for efficient collection against the taxpayer's concern that the action is unnecessary or overly intrusive. Courts have given the Appeals Officer substantial deference in appropriateness determinations, but an Appeals Officer who fails to consider relevant facts (such as the availability of less intrusive alternatives) may be found to have abused discretion. Verify the current appropriateness standards in your circuit at IRS.gov and with qualified legal counsel.

5.3 Underlying-Liability Challenges Under IRC 6330(c)(2)(B)

The most narrowly construed issue category: a taxpayer may challenge the amount or existence of the underlying tax liability at a CDP hearing ONLY if the taxpayer "did not receive any statutory notice of deficiency for such tax liability or did not otherwise have an opportunity to dispute such tax liability" (IRC 6330(c)(2)(B); verify at IRS.gov and in current IRC text). Courts have interpreted this limitation strictly: a taxpayer who received (but did not petition on) a notice of deficiency for the underlying tax generally cannot challenge the liability at a CDP hearing. The "did not otherwise have an opportunity" language has been litigated extensively; courts have found that a prior examination or an audit where the taxpayer participated constitutes a "prior opportunity" that forecloses the CDP liability challenge. Verify the current prior-opportunity doctrine, applicable case law in your circuit, and the procedure for raising a liability challenge at CDP at IRS.gov and with qualified legal counsel before advising any client.

6. The Underlying-Liability Challenge: Prior Opportunity and Its Judicial Development

The prior-opportunity limitation in IRC 6330(c)(2)(B) has generated substantial Tax Court and appellate case law since 1999. Key principles that have emerged from this case law (verify the current application of each in your circuit at IRS.gov and through current legal research):

• Receipt of a notice of deficiency -- even without a petition -- constitutes a prior opportunity. A taxpayer who received a statutory notice of deficiency had the opportunity to petition the Tax Court; the failure to use that opportunity does not entitle the taxpayer to raise the underlying liability at a CDP hearing. This is the most common scenario in which the liability challenge is foreclosed.
• A prior audit examination can constitute a prior opportunity. Some courts have held that a taxpayer who participated in an examination -- even one that did not result in a notice of deficiency -- had an opportunity to dispute the assessed amount and cannot relitigate the liability at CDP. This holding is circuit-specific and not universally accepted. Verify the current application in your circuit.
• Assessments made without a notice of deficiency do not foreclose the challenge. Trust Fund Recovery Penalties (IRC 6672), FICA assessments, and certain excise tax assessments are made without a notice of deficiency; a taxpayer assessed under these provisions generally retains the right to challenge the underlying liability at a CDP hearing (verify the current application in your circuit at IRS.gov).
• Computational errors and mathematical recalculations may be raised at CDP. Even where a prior opportunity forecloses a substantive challenge to the liability, some courts have allowed taxpayers to raise purely computational or mathematical errors that do not require relitigation of the substantive tax issues. Verify the current scope of permissible computational challenges at IRS.gov and with qualified legal counsel.

7. Equivalent Hearings: Late Hearing Rights, Missing Protections, and Strategic Implications

Treas. Reg. Sec. 301.6320-1(i) and 301.6330-1(i) (verify at IRS.gov and in current regulations) provide that a taxpayer who misses the 30-day deadline for a CDP hearing request may file a request for an equivalent hearing within 1 year from the date of the applicable CDP Notice. An equivalent hearing is an administrative hearing before an Appeals Officer and provides the taxpayer with the opportunity to discuss collection alternatives and appropriateness challenges. However, an equivalent hearing is not a CDP hearing and lacks three critical statutory protections:

• No CSED tolling. The 10-year collection statute (CSED) continues to run during an equivalent hearing. Unlike a CDP hearing under IRC 6330(e)(1), the equivalent hearing does not suspend the CSED. A taxpayer who requests an equivalent hearing while the CSED is near expiration may find the collection statute expires during the administrative process, potentially extinguishing the liability entirely -- but the IRS could also levy quickly before the CSED expires, since the equivalent hearing does not stay collection action.
• No statutory stay of levy. The IRS may levy on the taxpayer's property while an equivalent hearing is pending. The equivalent hearing does not carry the IRC 6330(e)(1) levy stay that protects a taxpayer during a formal CDP hearing.
• No Tax Court review right. A taxpayer who disagrees with the Appeals determination at an equivalent hearing has no statutory right to petition the Tax Court. The determination is an administrative decision only; the taxpayer's only recourse is to pay the assessed amount and bring a refund suit if the tax was wrongly collected. There is no independent judicial review pathway comparable to the IRC 6330(d) CDP Tax Court petition.

The decision to request an equivalent hearing (rather than accepting the missed CDP deadline and attempting other resolution paths) requires careful analysis of the CSED, the levy risk, and whether any meritorious arguments can realistically be advanced in an administrative forum without Tax Court review rights. Verify the current equivalent-hearing regulations, the 1-year deadline, and strategic implications at IRS.gov and with qualified legal counsel before recommending an equivalent hearing to any client.

8. IRC 6330(d)(1): Tax Court Jurisdiction, Standard of Review, and the 30-Day Petition Deadline

IRC 6330(d)(1) (verify at IRS.gov and in current IRC text) provides that a taxpayer who disagrees with the Appeals determination in a CDP case may petition the United States Tax Court to review the determination within 30 days of the date of the mailing of the Notice of Determination. This 30-day petition deadline is jurisdictional -- the Tax Court has no discretion to accept a late petition, and a petition filed on day 31 is dismissed for lack of jurisdiction. The consequences of a missed Tax Court petition deadline in a CDP case are severe: the Appeals determination becomes final, the IRS may immediately proceed with the levy or lien action that was at issue, and there is no further appeal available within the CDP framework.

8.1 Standard of Review: Abuse of Discretion vs. De Novo

The Tax Court's standard of review in a CDP case depends on the issue before it: (1) for issues involving the Appeals Officer's exercise of discretion -- whether to accept a collection alternative, whether the proposed collection action was appropriate, how the competing interests were balanced -- the Tax Court reviews for abuse of discretion. The Court asks whether the Appeals Officer's determination was arbitrary, capricious, clearly unlawful, or without sound basis in law or fact. The Court does not substitute its judgment for the Appeals Officer's; it assesses whether the discretion was exercised within permissible bounds. (2) For the underlying liability, when properly raised under IRC 6330(c)(2)(B), the Tax Court reviews de novo -- without deference to the Appeals Officer's determination. Verify the current standard of review for each issue type in your circuit at IRS.gov and through current legal research before any Tax Court CDP petition is filed.

8.2 Issues Available for Tax Court Review: The Preservation Requirement

A recurring and outcome-determinative issue in CDP Tax Court litigation is whether the taxpayer properly raised an issue at the CDP hearing. The Tax Court generally will not consider issues that were not raised at the hearing level -- even if the issue would have been meritorious had it been raised. A taxpayer who requested a CDP hearing to contest a levy but focused entirely on collection alternatives without challenging the appropriateness of the levy or raising the underlying liability (when available) may be unable to raise those arguments in the Tax Court. Practitioners must ensure that every potentially meritorious issue is raised and documented at the hearing level, as the record built at the CDP hearing is typically the only evidentiary record that will be before the Tax Court. Verify the current issue-preservation rules in your circuit at IRS.gov and with qualified legal counsel.

9. Judicial Developments: Case Law Through Tooke v. Commissioner (T.C. Memo. 2026-54)

The Tax Court and appellate courts have developed a substantial body of CDP case law since the statutes became effective in 1999. The following are key judicial principles from that development; each must be verified at IRS.gov and through current legal research before application in any specific client matter, as holdings vary by circuit and evolve over time.

9.1 Foundation: The Appeals Officer's Duty to Conduct a Balanced Analysis

Courts have consistently held that an Appeals Officer at a CDP hearing must conduct a balanced analysis of the competing interests -- the IRS's interest in efficient collection and the taxpayer's interest in avoiding unnecessary or disproportionate collection action. An Appeals Officer who considers only one side of that balance, or who fails to explain the basis for a determination, may be found to have abused discretion. The completeness and quality of the written Notice of Determination is therefore crucial: the Appeals Officer must document the issues raised, the evidence considered, and the basis for each aspect of the determination, or the Tax Court may find the determination inadequate on abuse-of-discretion review.

9.2 Tooke v. Commissioner, T.C. Memo. 2026-54 (June 23, 2026)

Tooke v. Commissioner, T.C. Memo. 2026-54 (June 23, 2026; verify the citation, complete holdings, and any subsequent appeal or acquiescence/nonacquiescence at Tax Court records and IRS publications before relying on this case in client matters) is a recent Tax Court memorandum opinion analyzing the Appeals Officer's scope of discretion at a CDP hearing in the context of an OIC and a partial-pay installment agreement (PPIA). In Tooke, the taxpayer submitted detailed financial information and proposed both a doubt-as-to-collectibility OIC and a PPIA. The Appeals Officer rejected both alternatives in the Notice of Determination, citing that the financial information did not support the proposed terms -- but without requesting supplemental documentation or explaining how the submitted information was analyzed.

The Tax Court's analysis in Tooke -- while a memorandum opinion (non-precedential but instructive; verify precedential status at Tax Court records) -- provides guidance on what the abuse-of-discretion review requires from an Appeals Officer when rejecting a proposed collection alternative. Practitioners in active CDP cases should review the full Tooke opinion as part of their assessment of the adequacy of the Notice of Determination in any case where the Appeals Officer rejected a collection alternative with minimal explanation. Verify the Tooke citation, holdings, any subsequent developments, and any IRS response (acquiescence or nonacquiescence) at Tax Court records and IRS.gov before relying on the case.

10. CDP vs. CAP: Statutory Rights and the Administrative Program Decision

The Collection Appeals Program (CAP) is an IRS administrative program created under IRM 8.22.5 and related guidance -- not by statute. CAP allows taxpayers to administratively appeal certain IRS collection actions (rejected or terminated installment agreements, rejected OICs, levies, seizures) by requesting a conference with an Appeals Officer. The key distinctions between CDP (statutory) and CAP (administrative):

Verify all current CDP and CAP rules and procedures at IRS.gov and with qualified legal counsel before advising any client on the CDP vs. CAP election. This table reflects the framework as of July 2026; IRM-based procedures can change without notice.

The practitioner decision framework: when the CSED is approaching expiration, Tax Court review may be needed, or the underlying liability is in dispute -- choose CDP for its stronger statutory protections. When the client needs a quick administrative resolution and a Tax Court petition is not contemplated, or when the collection action is a rejected installment agreement that falls within CAP (not a levy CDP trigger), CAP may be the more efficient path. Verify the current triggering events for CDP vs. CAP in the client's specific situation at IRS.gov and with qualified legal counsel.

11. National Taxpayer Advocate Proposals: Third-Party CDP Rights and Pending Legislation

The National Taxpayer Advocate's 2024 Annual Report to Congress (verify the current report at Taxpayer Advocate Service website and IRS.gov) included a legislative recommendation to amend IRC 6320 and 6330 to extend CDP rights to third parties whose property was wrongfully levied or whose rights were affected by an NFTL filed against another person. Under current law, only the taxpayer named in the CDP notice has CDP hearing rights; a third party whose property is inadvertently seized or whose rights are adversely affected by a tax lien against another person has no CDP right (though a wrongful-levy action under IRC 7426 may be available). The NTA's proposal would give affected third parties the right to an administrative hearing and potentially Tax Court review.

As of the date of this guide's review (July 2026), no legislation implementing the NTA's third-party CDP proposal had been enacted into law. Verify the current legislative status of any third-party CDP rights amendment at Congress.gov and IRS.gov before advising any client on third-party CDP rights. This is an area of active NTA advocacy; amendments could be enacted as part of a tax reform package without prior notice. Practitioners with clients who are affected third parties in collection actions should assess the full range of available remedies (IRC 7426 wrongful-levy, IRC 6325 discharge/subordination of the lien, and any administrative claim options) at IRS.gov and with qualified legal counsel.

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