7 Offer in Compromise Mistakes to Avoid

tax pro reviewing client oic rejection

Key Takeaways

The Harsh Reality of IRS Rejections

Each year, thousands of taxpayers apply for an Offer in Compromise (OIC) hoping to settle their IRS debt for less than they owe. And each year, most of those requests are denied. In fact, in 2024, 4 out of 5 OIC applications were rejected by the IRS.  While many rejections are due to eligibility limitations or a taxpayer’s financial profile, others might be avoidable. Some applicants overlook important details, submit incorrect forms, or make assumptions that don’t align with how the IRS evaluates offers.

Review these seven common mistakes to ensure an offer is right for you and that you can submit it with confidence.

Mistake #1: Not Being in Compliance With Tax Filing and Payments

Before the IRS will even consider your Offer in Compromise (OIC), you must be fully compliant with all tax filing and payment requirements. Compliance is a prerequisite to having an offer considered. If you miss it, your offer will be returned without any review, and your application fee won’t be refunded.

What “Compliance” Means for Individuals

For individual taxpayers, the IRS requires that you have:

  • Filed all required individual income tax returns for the last six years (typically Form 1040).
  • Have adequate tax withheld on your paycheck or estimated tax payments (especially important for self-employed individuals and gig workers) made so that you will not owe again in the future

For example, if you’re submitting an individual OIC in 2025, this generally means you must have filed your Form 1040 returns for 2019 through 2024, plus being current on your 2025 estimated payments and withholding so you do not owe when you file your 2025 return in 2026.

What “Compliance” Means for Businesses

For business owners ( sole proprietors, partnerships, LLCs, and corporations) the bar is higher. In addition to all the individual requirements listed above, business taxpayers must also:

  • Be current on payments and deposits for payroll tax returns (Forms 940, 941 and/or 944) for the past three quarters.
  • Be current on all payroll tax filings (Form 94/941, etc.)
  • Be current on all business income tax filings (Form 1120 series, Form 1065).
  • Be current on information returns such as W-2s and 1099s, if applicable.
  • Be making required current federal tax deposits if the business is still operating.

Don’t Forget While You Wait

Even if you were compliant at the time you submitted your offer, you must remain compliant while the IRS processes your OIC, which can take many months. Missing a quarterly estimated tax payment, skipping a payroll deposit, or failing to file your current-year return on time while your offer is under review will typically cause the IRS to return or reject the offer.

Action Tip:

Double-check your filing history through your IRS online account or with a tax professional. If you’re unsure which years are missing, you can request a tax return transcript or wage and income transcript using IRS Form 4506-T. If you’re a business owner, also verify your last six 941 filings and confirm you’re making current deposits.

Mistake #2: Submitting an Unrealistic Offer Amount

One of the most common reasons the IRS rejects an Offer in Compromise (OIC) is because the offer amount is too low. Taxpayers often assume the IRS will negotiate based on their perceived financial hardship, but the IRS evaluates every offer using a strict financial formula called Reasonable Collection Potential (RCP).

How the IRS Calculates Your “Ability to Pay”

The RCP formula adds:

  • Net Realizable Value (NRV) of your assets (such as home equity, vehicles, bank accounts, real estate and/or business interests), and
  • Future Income, which is calculated by subtracting allowable living expenses from your gross monthly income, then multiplying the result by 12 (for a lump-sum offer) or 24 (for a periodic payment offer).

If your offer is lower than your RCP, the IRS is very likely to reject it or ask you to increase it no matter how financially stressed you may feel.

This leads right into the next mistake…

Mistake #3: Overstating Expenses That the IRS Disallows

Many rejected offers are built on expense claims that the IRS doesn’t allow. Even if your actual spending is higher, the IRS uses strict limits on what it will accept.

What the IRS Does Not Allow

Here are some expenses that taxpayers list, not knowing the IRS will disregard:

  • Private school tuition (unless ordered by a court or tied to special needs)
  • Charitable donations, even if you regularly make them
  • Credit card and personal loan payments
  • Luxury or non-essential spending (like gym memberships or cosmetic procedures)

When you include these costs in your budget, your financial picture may look tighter than it really is, but the IRS will strip these items out of your Form 433-A or 433-B calculations.

Compare Your Budget to the Standards

Before submitting an offer, review the IRS’s:

  • National Standards for necessary costs like food, clothing, and personal care
  • Local Standards for housing and transportation
  • Standardized out-of-pocket health care expenses, unless documentation supports higher actual costs

If your budget exceeds these caps, you need to adjust your calculations.

Action Tip:

Build your offer based on what the IRS allows, not what you personally spend. Review the standards or work with a professional who understands how the IRS will interpret your numbers. An offer based on inflated or unapproved expenses is likely to be rejected — and may delay your case or trigger further scrutiny.

Mistake #4: Omitting or Undervaluing Assets

Another reason an Offer in Compromise (OIC) can be quickly rejected is failing to fully disclose your assets. Whether it’s an honest oversight or a strategic omission, the IRS treats incomplete asset reporting as a serious issue. Your offer will either be returned or recalculated far above what you proposed.

The IRS Is Looking for Everything You Own

The IRS expects a complete accounting of all personal and business assets, including:

  • Bank accounts (checking, savings, money market)
  • Retirement accounts (401(k), IRA, pension plans)
  • Vehicles, boats, or recreational vehicles
  • Real estate (primary residence, rental properties, land)
  • Cryptocurrency holdings
  • Cash-value life insurance policies
  • Business assets (inventory, equipment, receivables)

Each of these must be listed on Form 433-A (OIC) for individuals or Form 433-B (OIC) for businesses. And for each, the IRS expects a quick-sale value — typically 80% of fair market value — not just what you think the item is worth or what you owe on it.

Common Mistakes That Lead to Rejection

  • Leaving out accounts: For example, excluding a PayPal or Venmo balance, or a savings account used for emergencies.
  • Undervaluing vehicles: Claiming an outdated or arbitrary value instead of using a reputable valuation tool (like Kelley Blue Book).
  • Undervaluing homes:  Claiming an incorrect value for your home.  THe IRS does not need appraisals, but does need legitimate third party evidence of the value (broker opinion, etc.)
  • Not disclosing shared assets: Skipping over jointly held bank accounts, co-owned real estate, or business equity.
  • Assuming retirement assets are protected: While the IRS may not seize them, they are still factored into your ability to pay.

Even if you believe the IRS won’t touch a particular asset, failing to report it undermines your credibility and compliance.

Example:

Suppose you have $3,500 in checking, a car with a fair market value of $9,000, and a Roth IRA with $25,000. If you omit the Roth IRA, thinking it’s off-limits, the IRS will still spot it, making your offering seem misleading. Instead of using your stated asset value of $12,500, the IRS will calculate:

  • $3,500 (cash) + $7,200 (car at 80% FMV) + $25,000 (full IRA value) = $35,700 in assets

If your offer was for $5,000, and you failed to disclose over $20,000 in reachable assets, expect a swift rejection,

Action Tip:

Use Form 433-A (OIC) like an audit checklist. If you’re unsure of an asset’s value, document your estimate and be prepared to support it. Transparency increases your chances of approval and protects your credibility with the IRS.

Mistake #5: Using the Wrong Form or Not Understanding OIC Types

Filing the wrong IRS form or misunderstanding which type of Offer in Compromise (OIC) applies to your situation can derail your chances. Each type of taxpayer and each type of offer has specific requirements. Mixing them up can lead to automatic rejections or long processing delays.

There’s More Than One Type of OIC

Many taxpayers assume the Offer in Compromise program is one-size-fits-all, but there are actually three distinct grounds under which the IRS may accept an offer:

  1. Doubt as to Collectibility – You cannot afford to pay the full amount of tax debt based on your financial situation.
  2. Doubt as to Liability – You believe the IRS assessed the tax in error and you shouldn’t owe it at all.
  3. Effective Tax Administration – You owe the debt and could technically pay it, but doing so would cause an economic hardship or be unfair based on exceptional circumstances.

Most OICs fall under Doubt as to Collectibility, but if you apply under the wrong category your offer could be processed incorrectly or denied altogether.

Matching the Right Forms to Your Situation

Here’s a breakdown of the correct IRS forms to use, based on taxpayer type and OIC reason. All links below lead directly to the official PDF form hosted by the IRS:

Taxpayer TypePrimary OIC FormFinancial Disclosure FormWhen to Use
Individual (Personal Tax Debt)Form 656Form 433-A (OIC)Use when offering a compromise on unpaid individual income tax or self-employment tax.
Business Owner (Operating Business)Form 656Form 433-B (OIC)Use when your business has unpaid payroll taxes and is still active.
Business Entity (Closed Business)Form 656Form 433-B (OIC)Use when your business is no longer operating but owes tax.
Any Taxpayer Claiming Doubt as to LiabilityForm 656-LNo financials requiredUse when disputing that you owe the debt at all — not for financial hardship.

Avoiding the Form Mix-Up

A common mistake is using Form 656 when you should be using Form 656-L or vice versa. Another is submitting Form 433-A instead of Form 433-B for a business entity. The IRS doesn’t correct these errors for you. They reject or return the package.

Also, all required forms must be complete, signed, and dated. A missing signature or outdated form version can cause delays or outright rejection.

Action Tip:

Always download the latest forms directly from the IRS Forms & Publications page. Avoid using outdated versions from third-party sites or reused PDF templates. If your situation involves a business or prior disputes with the IRS, consider working with a licensed tax professional to ensure you’re filing the correct documents.

Mistake #6: Expecting the IRS to Negotiate Like a Business Transaction

Some taxpayers go into the Offer in Compromise (OIC) process with the mindset that it’s a negotiation. But that’s not how the IRS works. The OIC process is not about winning sympathy or debating your financial hardship. It’s about applying a formula to your verified numbers and either qualifying or not.

The IRS Doesn’t “Haggle”

Unlike debt settlement with a private lender or a contract between two businesses, the IRS follows a rigid set of internal procedures. If your offer meets the formula’s parameters, then you may get approved. If not, the IRS will either reject your offer or request more information. There’s no back-and-forth negotiation based on feelings or stress.

That’s why expecting a “deal” through personality or emotional appeal is one of the most misguided assumptions taxpayers make during the OIC process.

The Role of a Tax Pro Isn’t What You Might Think

To go along with this point, some taxpayers hire a tax professional in hopes that they’ll “fight” for a lower offer amount. While representation is often helpful (and sometimes necessary) the most effective tax pros don’t win by arguing with the IRS. They win by knowing how to properly document your case, align your numbers with IRS standards, and choose the correct strategy and timing.

A licensed Enrolled Agent, CPA, or tax attorney with OIC experience will:

  • First determine whether an OIC is the right solution, or whether another IRS resolution (like Currently Not Collectible status or an installment agreement) is a better fit
  • Help avoid technical errors on your forms
  • Align your claimed expenses with allowable thresholds
  • Ensure you’re submitting under the right OIC category
  • Identify opportunities to reduce your reasonable collection potential legally and accurately.

If you’re working with someone who promises they can “negotiate” a huge tax discount without doing the math (or they downplay the IRS’s financial analysis) that’s a red flag.

Action Tip:

Approach the OIC process like an audit, not a negotiation. Make sure your representative, if you hire one, is focused on documentation, compliance, and accuracy.

Mistake #7: Ignoring the Long-Term Compliance Requirement

If your Offer in Compromise (OIC) is accepted, your work isn’t done. Staying in compliance for five full years after acceptance is part of the deal. Failing to do so can cause the IRS to revoke your offer and reinstate the full debt amount, along with penalties and interest.

The 5-Year Rule

As part of the OIC terms, you agree to:

  • File all required tax returns on time for the next five years
  • Pay all tax liabilities in full and on time for those years
  • Avoid incurring new unpaid balances or installment agreements
  • Stay current with estimated tax payments if you’re self-employed or a gig worker
  • Make federal tax deposits on time, if you operate a business with employees

If you break any of these conditions, the IRS can default your OIC, meaning your original tax debt (plus penalties and interest) comes back into play, even if you’ve already paid the settlement amount in full.

Why This Gets Overlooked

Many taxpayers focus all their energy on getting the offer accepted and forget that the IRS still has more requirements. Some people get caught off guard when they don’t file or pay future taxes on time.

The IRS has automated systems in place to flag these issues. Once flagged, your case can be reopened, and you’ll likely get a notice of default.

Action Tip:

Set reminders and use direct deposit or IRS Direct Pay to make future payments on time. If you’re self-employed or run a small business, work with a tax professional to stay on top of quarterly estimates and required filings.

Summing It Up

An Offer in Compromise can be a powerful tool, but only if you qualify and navigate correctly. Some applicants can qualify but be denied because they misunderstand the rules and procedures. A smart approach means doing your homework, using the IRS’s own formulas, and staying compliant every step of the way. If you’re unsure where you stand, consider connecting with a licensed tax professional.

The right Tax Pro can make all the difference.

Whether the best option is an Offer in Compromise or something else, our Tax Pros will give it to you straight.

About the Author

Co-Founder
For 19 years, Jim worked at the IRS in various compliance enforcement positions. Since then, Jim has used his expertise in private practice, building tax software, serving on the IRS Taxpayer Advocacy Panel, and publishing the Tax Problems and Solutions Handbook.