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IRSOther IRS Forms (4000–6999)

Official form guide

Form 656L: Offer in Compromise Doubt as to Liability (DATL)

Internal Revenue Service Form 656L is an Offer in Compromise Doubt as to Liability (DATL) form. It is used by taxpayers who dispute the existence or amount of a tax debt. No specific thresholds, deadlines, or rates are available from the official source.

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Form Overview

IRS Form 656L - Offer in Compromise Doubt as to Liability (DATL)

Internal Revenue Service Form 656L is an Offer in Compromise Doubt as to Liability (DATL) form. It is used by taxpayers who dispute the existence or amount of a tax debt. No specific thresholds, deadlines, or rates are available from the official source.

The form collects your personal information, the tax debt details, and your explanation and evidence showing the liability is wrong. It does not require financial statements like other offer forms.

Risk Radar

Scan points
  • 1Submitting financial info instead of liability evidence causes rejection.
  • 2Using the form when you just can't pay, not when the tax is wrong.
  • 3Failing to attach evidence that the tax amount is incorrect.
  • 4Omitting the tax periods or amounts you are disputing.
  • 5Signing the form without reading the certification carefully.

Plain English

Form 656L lets you ask the IRS to forgive part or all of a tax bill you don't think you owe. You must show evidence that the tax is wrong, not just that you can't pay. The IRS agrees only if they find the tax truly incorrect.

Submission Date

  • Filing date: 2024-05-13 22:10:18
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

Hover a term to preview the meaning.

What this form is for

  • Use this form when you dispute the existence or the correct amount of a tax debt you owe to the Internal Revenue Service.
  • Do not use it when you agree with the tax debt but cannot pay it in full; use a different offer type or installment agreement instead.
  • Check Form 656 (Offer in Compromise) instead when you are applying under the Doubt as to Collectibility or Effective Tax Administration categories.

Form selector

Use this form or another form?

You agree with the tax debt but cannot pay in full

Installment agreement may avoid an offer in compromise

Confirm you qualify for an installment plan on IRS.gov

Form 9465

You dispute a notice of deficiency in Tax Court

Tax Court petition has separate rules

Check Tax Court filing procedures

Form 656L is not for that purpose

You want to compromise based on effective tax administration

Doubt as to Liability is a different legal basis

Ensure you meet ETA criteria before submitting

Form 656 (ETA)

Deadline or filing window

Not stated in the official source. No filing window or extension rules are provided for this form.

Checklist

What you need before filling it out

1

Tax liability amount disputed

Copy of the notice of deficiency or bill · IRS correspondence

Not providing the exact notice numberMedium
2

Legal basis for doubt

Applicable tax law citations or court cases · Tax professional research

Citing outdated or irrelevant lawHigh
3

Proof of payment claimed

Canceled checks, bank statements, payment vouchers · Personal records

Missing partial payment documentationMedium
4

Identity verification

Valid government-issued photo ID (e.g., driver's license, passport) · Personal documents

Submitting expired or non-photo IDMedium
5

Correspondence address

Current mailing address and phone number · Personal records

Using a non-current addressLow
6

Date of dispute

Tax period and year in question · IRS notice or tax return

Omission of the exact tax periodLow
7

Estimated tax return if not filed

Completed tax return for the year under dispute · Personal tax records

Filing an incomplete or unsigned returnHigh

Before you submit

  1. 1Confirm you have the most current edition of Form 656L from IRS.gov.
  2. 2Sign and date the form in the designated signature area.
  3. 3Attach all required evidence supporting your doubt as to liability.
  4. 4Verify that your mailing address on the form is current and correct.
  5. 5Make a copy of the completed form and all attachments for your records.
  6. 6Check the payment amount for the application fee (if applicable) per current IRS instructions.
  7. 7Place the form and attachments in an envelope with sufficient postage.
  8. 8Mail the package to the address specified on the latest Form 656L instructions.
  9. 9Note your filing date and the expected acknowledgment time frame from the IRS.

How to file this form

  1. 1Download the current edition of IRS Form 656L from IRS.gov.
  2. 2Read the instructions provided with Form 656L to understand eligibility and requirements.
  3. 3Complete all sections of Form 656L, including your personal information and the specific tax liability you dispute.
  4. 4Gather and attach supporting documents that demonstrate your doubt as to the liability, such as a notice of deficiency or payment records.
  5. 5Review the form for completeness and sign it in the signature block.
  6. 6Make a photocopy of the signed form and all attachments for your records.
  7. 7Mail the original signed form and attachments to the IRS address listed in the current Form 656L instructions.
  8. 8Keep a proof of mailing, such as a certified mail receipt, as evidence of filing.

Known limitations

  1. 1This form is not for use when you agree with the tax debt but cannot pay it.
  2. 2It does not apply to disputes that are already in Tax Court litigation.
  3. 3The IRS may reject an offer if the taxpayer has not filed all required tax returns.
  4. 4Offers submitted on this form are subject to review and may be denied even with supporting evidence.
  5. 5Non-liability disputes, such as collection due process, require different forms.

Field map

Compact field-by-field guide

6 fields

General Info

2 items

Taxpayer Name and TIN

Full legal name and taxpayer identification number (SSN or EIN).

Requiredtext
Address

Current mailing address.

Requiredtext

Details

2 items

Required Information

Complete all applicable sections of this form according to the official IRS instructions.

Requiredtext
Amount (if applicable)

Enter the relevant dollar amount if this form involves tax calculation.

amount

Certification

1 items

Certification Statement

Read and acknowledge any certifications required by this form.

Requiredcheckbox

Signatures

1 items

Signature

Sign and date. Unsigned forms cannot be processed.

Requiredsignature
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Current form status
IRS

The official source does not provide a revision date or edition details for IRS Form 656L. No latest-information page is referenced. Any changes from prior versions are unknown from the source.

What changed or needs a fresh check

  • Edition date — not stated in the official source; verify the form revision date on IRS.gov before using.
  • Fee — not stated in the official source; check the current fee schedule for offer in compromise applications on IRS.gov.
  • Mailing address — not stated in the official source; use the address listed on the most current Form 656L instructions from IRS.gov.
  • Signature — sign the form after completing all sections; an unsigned form will be returned without processing.
  • Completeness — fill all required lines and attach all supporting documents before mailing.

Quick Facts

Any taxpayer who believes the IRS assessment of a tax liability is incorrect may use Form 656L.
The form collects your personal information, the tax debt details, and your explanation and evidence showing the liability is wrong. It does not require financial statements like other offer forms.
Not stated in the official source.
Not stated in the official source.
If you submit an incorrect or incomplete Form 656L, the IRS may reject it and you may lose the right to dispute the liability through this program.
Complete the form with your name, address, and taxpayer ID. Describe the tax periods and amounts you dispute, and attach evidence supporting your position. Sign and date the form. Mail it to the address on the form instructions.

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After you file

  1. 1Retain a copy of the submitted Form 656L and all attachments for at least 3 years.
  2. 2Monitor your mail for an IRS acknowledgment letter, typically within 6 months of filing.
  3. 3Respond promptly if the IRS requests additional information or documents.
  4. 4If the offer is accepted, follow any payment or installment instructions provided.
  5. 5If the offer is rejected, consider appealing the decision using IRS Form 13711 (Appeal of Offer in Compromise).
  6. 6Keep records of all correspondence with the IRS regarding this form.
  7. 7Correct errors on the form by submitting an amended version (if allowed) before the IRS begins review.

Sources

  • SRCNot stated in the official source — verify on the agency site
  • SRCNot stated in the official source — verify on IRS.gov for current form edition
  • SRCNot stated in the official source — verify mailing address on current Form 656L instructions
  • SRCNot stated in the official source — verify fee schedule on IRS.gov
  • SRCNot stated in the official source — verify signature requirements on the form itself
  • SRCNot stated in the official source — verify acknowledgment time frame from IRS correspondence

Common confusion points

Can I use this form if I owe money but think the amount is wrong?

Yes, that is the exact purpose of Doubt as to Liability.

Confirm you are disputing the existence or amount, not your ability to pay.

Is this form the same as a regular offer in compromise?

No, it is specifically for Doubt as to Liability, not Doubt as to Collectibility.

Check the form title: Offer in Compromise Doubt as to Liability (DATL).

Do I need to pay a fee to file this form?

The IRS fee schedule for offers may apply; check current instructions.

Look at the current Form 656L instructions for fee details.

Can I file this form if I already have a Tax Court case?

Generally no; legal disputes in Tax Court should use that process.

Confirm you are not in ongoing Tax Court litigation.

What if I lose my copy of the form after mailing?

You can download a new blank form from IRS.gov and refile if needed.

Keep a certified mail receipt and a photocopy.

Does filing this form stop collection actions?

Filing an offer may temporarily suspend collection, but not always.

Confirm the current IRS policy on collection while offer is pending.

Workflow map

Related forms and next steps

6 signals

Before

Form 656 — Offer in Compromise (general application) if you are under a different compromise category.Form 433-A (OIC) — Collection Information Statement for Wage Earners if using a different offer type.

Current

656L

After

Form 13711 — Appeal of Offer in Compromise if your offer is rejected.

Often used with

Form 656L itself is the specific form; no co-forms are referenced in the source.

⚠ If something goes wrong

  • Form 2848 — Power of Attorney and Declaration of Representative if you need professional representation.
  • Form 911 — Request for Taxpayer Advocate Service Assistance for unresolved delays or hardships.

Questions about IRS Form 656L

What is IRS Form 656L used for?

Form 656L lets you ask the IRS to forgive part or all of a tax bill you don't think you owe. You must show evidence that the tax is wrong, not just that you can't pay. The IRS agrees only if they find the tax truly incorrect.

Who must file IRS Form 656L?

Any taxpayer who believes the IRS assessment of a tax liability is incorrect may use Form 656L.

What information does IRS Form 656L require?

The form collects your personal information, the tax debt details, and your explanation and evidence showing the liability is wrong. It does not require financial statements like other offer forms.

How do I complete IRS Form 656L?

Complete the form with your name, address, and taxpayer ID. Describe the tax periods and amounts you dispute, and attach evidence supporting your position. Sign and date the form. Mail it to the address on the form instructions.

What happens if IRS Form 656L is filed incorrectly?

If you submit an incorrect or incomplete Form 656L, the IRS may reject it and you may lose the right to dispute the liability through this program.

Can I use this form if I owe money but think the amount is wrong?

Yes, that is the exact purpose of Doubt as to Liability. Confirm you are disputing the existence or amount, not your ability to pay.

Is this form the same as a regular offer in compromise?

No, it is specifically for Doubt as to Liability, not Doubt as to Collectibility. Check the form title: Offer in Compromise Doubt as to Liability (DATL).

Do I need to pay a fee to file this form?

The IRS fee schedule for offers may apply; check current instructions. Look at the current Form 656L instructions for fee details.

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Copyright & Licensing - US Government Forms

Independent guide

BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.

Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
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