Overview

An Offer in Compromise (OIC) lets eligible taxpayers settle federal tax liabilities for less than the full amount owed when the IRS determines collection in full is unlikely. The application requires specific IRS forms, an application fee in most cases, and clear financial documentation. Following the correct steps and avoiding common mistakes can shorten processing time and improve acceptance odds (IRS: Offer in Compromise).

Required forms and payments

Payments required with the application (summary):

  • Standard application fee: $205 (most applicants) — this is the IRS fee for filing an OIC (as of 2025). (IRS: Offer in Compromise)
  • Lump‑sum (cash) offer: generally submit 20% of the proposed offer with Form 656 when you file.
  • Periodic (installment) offer: include the first proposed monthly payment with the application and continue payments while the IRS considers the offer.
  • Low‑income applicants may qualify for a waiver of the $205 fee and the initial payment if they meet the IRS low‑income certification rules.

Note: You can file an OIC by mail using the forms above or file electronically where available (see IRS guidance and Pay.gov options). Always use the current forms and instructions on IRS.gov.

Sources: IRS Offer in Compromise main page and form instructions (https://www.irs.gov/payments/offer-in-compromise; Forms linked above).

Common mistakes and how to avoid them

  1. Missing or incomplete forms
  • Mistake: Omitting Form 656‑B, the correct 433‑series form, or required signatures.
  • Fix: Use the IRS checklist in Form 656‑B and confirm you used Form 433‑A(OIC) for individuals or 433‑B(OIC) for businesses.
  1. Incomplete or unsupported financial data
  • Mistake: Listing expenses or asset values with no documentation (bank statements, appraisals, bills).
  • Fix: Attach pay stubs, 3 months of bank statements, vehicle titles, appraisals for real property, and documentation for monthly expenses.
  1. Not filing required tax returns
  • Mistake: Submitting an OIC while required returns are unfiled — the IRS generally requires current returns before accepting an offer.
  • Fix: File all required returns and include proof of filing.
  1. Underestimating IRS valuation of assets and income
  • Mistake: Claiming lower equity than the IRS will calculate, leading to unrealistic offers.
  • Fix: Use conservative estimates and be prepared to justify unusual expense claims.
  1. Forgetting the payment rules or deadlines
  • Mistake: Not including the required application fee or initial payment, or stopping periodic payments while under consideration.
  • Fix: Review payment requirements carefully and keep payment records. If you qualify for a low‑income waiver, document that status per IRS instructions.
  1. Failing to respond to IRS requests quickly
  • Mistake: Ignoring notices for additional documentation, which can cause rejection.
  • Fix: Respond promptly and keep copies of all correspondence.

Practical tips from practice

In my practice helping clients prepare OICs, the single biggest difference between accepted and rejected offers is documentation quality. I recommend:

  • Start with a pre‑filing checklist: current tax returns, 3 months of bank statements, pay stubs, proof of recurring bills, and vehicle or real‑estate valuations.
  • Prepare a realistic RCP (reasonable collection potential) calculation; aggressive low offers without support are usually rejected.
  • Consider alternatives first: an installment agreement or partial payment plan may be faster or more realistic for some taxpayers (see When an Installment Agreement Is the Better Option Than an Offer in Compromise).

Typical timeline and outcomes

Processing commonly takes 6–12 months, depending on complexity and IRS workload. During review, the IRS may ask for more documentation or an interview. If accepted, follow the payment schedule exactly. If rejected, you can appeal or reapply after addressing the rejection reasons.

Quick filing checklist

  • Completed Form 656 and Form 656‑B
  • Correct 433‑series form (433‑A(OIC) or 433‑B(OIC))
  • Proof all required tax returns are filed
  • Application fee ($205) or low‑income waiver documentation
  • Required initial deposit (20% for lump sum or first periodic payment)
  • Supporting documents: pay stubs, bank records, bills, appraisals

Professional disclaimer

This article is educational and does not replace personalized tax advice. Rules and fees can change; always check the current IRS forms and instructions at IRS.gov or consult a qualified tax professional for advice on your situation.