IRS Form 656
Offer in Compromise
Form 656 is the IRS Offer in Compromise — your written settlement proposal. It must be filed together with Form 433-A (OIC) (the financial disclosure) and a non-refundable application fee plus a down payment. The IRS rejects roughly two-thirds of Offers in Compromise, often because the offer amount was below the IRS's calculated 'reasonable collection potential.'
Taxpayers with significant federal tax debt who cannot reasonably pay the full amount through an installment plan within the collection statute, or where collecting in full would cause economic hardship.
Tax Attorney · Villanova University School of Law · Admitted in Delaware, New Jersey, United States Tax Court
What's at Stake With Form 656
Filing Form 656 extends the IRS Collection Statute Expiration Date (CSED) — meaning the 10-year clock pauses while the offer is pending plus 30 days. Filing without strategy can actually extend the IRS's collection window without producing a settlement.
How to File Form 656 Correctly
- 1Calculate the IRS's Reasonable Collection Potential (RCP)
RCP = net equity in assets + future monthly income × 12 (lump sum) or × 24 (periodic). Your offer must equal or exceed this number to be considered.
- 2Choose lump sum vs. periodic payment
Lump sum requires 20% down with the offer; periodic requires monthly payments during evaluation. Each has different math.
- 3File Form 433-A (OIC) and supporting documents
Three months of bank statements, pay stubs, and proof of every expense. Missing documentation is the #1 cause of return without consideration.
- 4Submit application fee and down payment
Currently $205 application fee plus the required down payment. Low-income certification waives the fee.
- 5Stay compliant for 5 years after acceptance
If you fall out of compliance — late return, new balance — the offer defaults and the original liability returns in full.
Why File Form 656 With a Tax Attorney
Once you sign IRS paperwork, every fact you disclosed becomes evidence. Privilege protects the conversation before you commit.
Collection Financial Standards, RCP math, and ACS vs. Field Collection rules change what number you should put on this form.
Direct-debit triggers, dissipated-asset addbacks, AMT preference items — most of the cost of these forms is in what you didn't know to negotiate.
If the IRS rejects, defaults, or audits you off this form, we represent you through Appeals, Tax Court, or U.S. District Court.
Costly Mistakes With Form 656
Offering an amount below the IRS's Reasonable Collection Potential — automatic rejection.
Missing the 20% down payment on lump-sum offers.
Failing to file all required prior-year returns before submitting the offer.
Filing without first ruling out simpler options like Currently Not Collectible.
Frequently Asked Questions About Form 656
Historically the IRS accepts roughly 30-40% of OICs filed. Acceptance rates jump significantly when prepared by an experienced tax attorney who calculates RCP correctly.
Yes — the IRS keeps any refund for the year the offer is accepted, and that amount does not reduce the offer.
Typical processing time is 6-12 months. The IRS pauses collection during evaluation, but interest and penalties keep accruing on the original liability.
Related IRS Forms
Related IRS Notices
Primary Sources & Authority
We cite the underlying IRS publications and statutes so you can verify everything on this page.