IRS Forms

Form 656 Instructions: The Offer in Compromise Walkthrough (2026)

By Angeline Balsitis, EA · Reviewed by Melissa Ly, Chief Tax Officer · Updated February 19, 2026 · Editorial Standards

What Form 656 actually is

Form 656 is the legal offer itself — your written promise to pay a specific amount to settle a specific tax debt. It is the centerpiece of the Offer in Compromise program, but it does not travel alone. The IRS packages it inside the Form 656-B booklet, which includes the instructions, the financial statements, and a worksheet to calculate your minimum offer.

An OIC is built on one idea: the IRS will accept less than the full balance when its own math shows you can't reasonably pay more before the 10-year collection statute runs out. That figure is called your "reasonable collection potential." Form 656 is where you put the number — but the number has to survive the IRS's review.

The forms you file alongside Form 656

You can't submit Form 656 by itself. A complete package usually includes:

• Form 656 — the offer, with your name, the tax years and types of tax, your offer amount, and your payment option.
• Form 433-A (OIC) for individuals or Form 433-B (OIC) for businesses — the detailed financial statement. Our Form 433-A walkthrough breaks this one down line by line.
• Supporting documents — recent pay stubs, three months of bank statements, vehicle and mortgage statements, and proof of monthly expenses.
• The application fee and initial payment — unless you qualify for the Low Income Certification (more below).

Every required tax return must also be filed before the IRS will even consider your offer. If you have unfiled years, fix those first — the IRS will return an offer from a non-filer without reviewing it.

Form 656, section by section

Here's what each part asks for, in plain English:

1. Section 1 — Individual information. Your name, address, Social Security number, and the tax periods you're settling. List every year and tax type you want included; anything you leave off stays at full balance.
2. Section 2 — Business information. Only if the offer is for a business entity. Most individual taxpayers skip this.
3. Section 3 — Reason for the offer. Almost everyone checks "Doubt as to Collectibility" — meaning you can't pay the full amount. A second, rarer box is "Effective Tax Administration," for cases where paying in full is possible but would cause real hardship or be unfair.
4. Section 4 — Payment terms. This is where you choose lump sum or periodic payment and write in your offer amount. Get this number from the worksheet, not from hope.
5. Section 5 — Designation and source of funds. You explain where the offer money will come from and how any deposit should be applied.
6. Section 6 — Offer terms. The fine print: you agree to stay current on all filings and payments for five years, and you agree the IRS keeps any payments and fees if the offer falls through.
7. Section 7 — Signatures. Unsigned offers get returned. If you're married and both spouses owe, both usually sign.

The two payment options — and the formulas behind them

Form 656 forces a choice, and the choice changes your minimum offer:

• Lump sum cash offer. Paid in five or fewer installments within five months of acceptance. You must send 20% of your offer amount with the form. The minimum offer is roughly your net asset value plus 12 months of your monthly disposable income.
• Periodic payment offer. Paid in six or more monthly installments, generally within 24 months. You must start making the monthly payments when you file and keep them up during review. The minimum offer is your net asset value plus 24 months of disposable income.

A quick, honest example: if the IRS figures your assets are worth $4,000 and your monthly disposable income is $200, a lump-sum minimum offer lands near $4,000 + ($200 × 12) = $6,400. Offer less than the formula supports and the IRS will counter or reject it. This is exactly why so many people compare an offer in compromise against a payment plan before committing.

The application fee and Low Income Certification

Two things normally go in the envelope with Form 656: the application fee (recently $205) and your initial payment. Confirm the current fee in the latest IRS Offer in Compromise booklet before mailing.

If your household income falls at or below the Low Income Certification guidelines printed in the booklet, check that box in Section 1. Doing so waives both the application fee and the initial payment, and you won't owe monthly payments during review. Skipping this box when you qualify is a common, costly mistake.

What happens after you mail it

The IRS first checks that your package is complete and your returns are filed. If it isn't, the offer is returned — not rejected — and you can resubmit. If it's accepted for processing, an examiner reviews your finances and either:

• Accepts the offer as written;
• Counters with a higher amount their math supports; or
• Rejects it, usually because they calculated more disposable income or asset value than you did.

A rejection isn't the end. You have 30 days to appeal using Form 13711. If an offer truly doesn't fit your numbers, Currently Not Collectible status or a partial-pay installment agreement may protect you instead.

How to complete Form 656, step by step

1. File every required return first. The IRS won't process an offer from a non-filer.
2. Run the pre-qualifier. The IRS's free Offer in Compromise Pre-Qualifier tool gives you a rough idea before you start.
3. Complete the 433-A (OIC) financial statement honestly and gather every supporting document it asks for.
4. Calculate your minimum offer using the booklet worksheet — net asset value plus 12 or 24 months of disposable income, depending on your payment option.
5. Fill out Form 656 with the offer amount, payment terms, and every tax year you want settled.
6. Decide on the Low Income Certification — check the box if you qualify to waive the fee and payments.
7. Sign, attach the fee and initial payment (unless waived), and mail the complete package to the address in the booklet.
8. Stay current. Make any required monthly payments and keep filing and paying on time while the IRS reviews your offer.

Form 656 questions, answered

This guide is general information, not tax or legal advice for your specific situation. Eligibility for IRS programs depends on individual facts and circumstances; no outcome is guaranteed.

Related: compare your choices in payment plan vs. offer in compromise, learn the Form 433-A financial statement, or browse all guides.