Most rejected installment agreements are appealable. CAP is fast, free, and frequently reverses rejections based on RCP disagreements or incorrect application of Collection Financial Standards. This chapter walks through the CAP process, the CDP alternative, and what to do when both appeal paths fail.

For the installment agreement framework, see Negotiate Installment Agreement.

The Four Appeal Paths After IA Rejection

InformalManager Review
FastCAP
FormalCDP
JudicialTax Court

IA rejection appeal paths.
Path Form Deadline Decision Time2
Manager Review Written request Pre-rejection or immediately after 1 to 2 weeks
CAP Form 9423 30 days 5 business days typical
CDP Form 12153 30 days from Final Notice 6 to 12 months
Tax Court (from CDP) Tax Court Petition 30 days from CDP determination 1 to 2 years

Quick Reference

Jump to the appeal path: manager review, CAP, CDP, or Tax Court. For the document lookup, see the appeal document reference. To appeal, a 15-minute consultation is free.

1. Manager Review: Informal First Step

A request for manager review can occur before or immediately after a rejection decision. It is informal, costs nothing, and sometimes resolves rejections without escalation.

If this is you: A Revenue Officer or ACS representative has rejected the IA proposal. Ask to speak with their manager before accepting the rejection. Managers sometimes approve what line-level personnel reject.

Manager Review Strategy

  1. Request the manager conference in writing.
  2. Prepare specific disagreements. RCP math, CFS application, term length.
  3. Attend with representation if case is material.
  4. Document the outcome. Email confirmation.
  5. Escalate to CAP if manager denies.

2. Collection Appeals Program (CAP): The Fast Path

CAP is a fast-track administrative appeal to IRS Appeals under IRM 8.24. Form 9423 filed within 30 days of the rejection triggers CAP review. Decisions typically come within 5 business days. CAP is the most common appeal path for IA rejections.3

If this is you: Your IA was rejected. CAP is available. Form 9423 submission is simple, and the expedited timeline means a decision within a week. Appeals applies hazards-of-litigation analysis and often accepts.

CAP coverage includes:

  • Rejected installment agreements.
  • Modified installment agreements.
  • Terminated installment agreements.
  • Rejected OIC (separate Form 13711 typically used).
  • Proposed levies or lien filings.

3. Collection Due Process (CDP): The Formal Path

CDP is the formal statutory appeal under IRC §6330 available after the IRS issues a Final Notice of Intent to Levy or files a Notice of Federal Tax Lien. CDP is judicially reviewable — denials can be appealed to Tax Court.

If this is you: Your IA rejection is accompanied by a Final Notice or lien filing. Form 12153 within 30 days preserves CDP rights and pauses collection. CDP provides stronger procedural protections than CAP.

4. Tax Court: Judicial Review (from CDP)

A CDP determination denying an IA can be petitioned to Tax Court within 30 days of the Notice of Determination. Tax Court reviews the CDP record for abuse of discretion on IA rejection questions.

If this is you: CDP denied relief and the case is sufficiently material to litigate. Tax Court review requires counsel in most cases. The standard is deferential — Tax Court affirms most CDP IA decisions unless the IRS clearly abused discretion.

30-day CAP or CDP deadline running? Both have strict deadlines. Missing them forfeits the appeal. Book a consultation before the window closes.

IA Rejection Appeal Document Lookup

IA appeal forms and documents.
Document Purpose
Form 9423 Collection Appeal Request (CAP)
Form 12153 CDP Hearing Request
Form 9465 Installment Agreement Request
Form 433-F Collection Information Statement
Form 433-A CIS (full individual)
Form 843 Claim for Refund / Penalty Abatement
IRM 8.24 CAP procedures
IRC §6330 CDP hearing authority
Publication 1660 Collection Appeal Rights
Publication 594 IRS Collection Process

CSED and IA Appeals

  • CSED continues to run during CAP. No tolling.
  • CSED tolls during CDP. Plus 30 days for Tax Court petition window.
  • Tax Court pendency tolls. Plus 60 days.
  • CAP decision in 5 business days. Minimal CSED impact.
  • Deadlines are statutory. Missing terminates appeal rights.

IA Appeal Success Rates

IA appeal outcomes by path. Source: IRS Appeals; Brotman Law practice.
Path Approximate Success
Manager review (narrow dispute) ~30% to 40%
CAP (RCP / CFS dispute) ~50% to 65%
CDP (substantive issue) ~40% to 55%
Tax Court (from CDP) Low; deferential standard
Alternative resolution post-denial Usually achievable

Appeal Escalation Pathway

Rejection to CAP

Form 9423 within 30 days. Fast decision. If successful, IA is approved.

CAP Denial to CDP

If Final Notice issues, Form 12153 within 30 days provides CDP hearing. Collection paused.

CDP to Tax Court

Notice of Determination petitioned to Tax Court within 30 days. Judicial review of the CDP record.

The First 48 Hours After IA Rejection

  1. Read the rejection letter carefully. Identify specific reason.
  2. Calendar the 30-day appeal deadline.
  3. Identify the appropriate path. CAP vs. CDP.
  4. File Form 9423 (CAP) with specific disputes.
  5. If Final Notice issued, file Form 12153 (CDP) instead.
  6. Prepare supporting documentation. Updated 433-F, CFS analysis.
  7. Engage counsel for complex cases.


Brotman Law has been recognized by Inc. Magazine as one of California’s fastest-growing law firms. We have appealed hundreds of IA rejections through CAP and CDP, with meaningful acceptance rates at IRS Appeals. Our office is based in San Diego.

The ROI Question

CAP is fast and free. For IA rejections based on disputable RCP or CFS items, CAP appeal almost always produces better terms than accepting the rejection and moving to alternatives.

Dealing with IRS Collections Activity?

Whether you’ve received a final notice of intent to levy, a notice of federal tax lien, or a revenue officer has made contact, the collections process has timelines that work against you if you wait. Most situations have resolution paths — but the options narrow as the IRS moves further into enforcement. We can identify where you are in the process and what makes sense for your situation.

Discuss My Collections Situation →    Or call: (619) 378-3138

When to Engage an Attorney for IA Appeal

  • Balance over $50,000. Complex financial analysis.
  • Revenue Officer rejected the agreement. Direct negotiation needed.
  • CDP already pending. Judicial review trajectory.
  • Multiple prior rejections.
  • Imminent levy or garnishment. CDP coordination.
  • Business agreement issues.

Any of the above apply?

A 15-minute consultation is free. We scope the appeal and file within deadlines.

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