Most of what you've read online about IRS problems is wrong, or at least misleading. I'm Darrin Mish. I practice tax law in Tampa and I've been doing this for 32 years. Here's what's actually true.
The Joint Tax Debt Trap
You filed a joint return because that is what married people do. You signed the form your spouse handed you. Maybe you reviewed it. Maybe you did not. Now, five years later, you are divorced, separated, or just trying to get on with your life, and the IRS is sending you collection notices for a tax debt that came from your spouse’s business, your spouse’s unreported income, or your spouse’s accuracy problem.
The legal term for what just happened to you is joint and several liability. When you signed that joint return, you became personally responsible for every dollar of tax owed on it. Not half. Not your share. All of it.
The IRS can collect 100% of the debt from either spouse, regardless of who actually earned the income or caused the underpayment.
After 32 years of working tax cases, I can tell you that this is one of the most common, painful, and unfair-feeling situations in tax law. It is also one of the few areas where Congress built in a meaningful escape hatch. The hatch is called Innocent Spouse Relief under Internal Revenue Code Section 6015.
Here is what it does, who qualifies, and how to apply.
The Three Types of Relief Under Section 6015
Section 6015 actually contains three different relief paths, each with its own qualifying criteria. The IRS evaluates a Form 8857 request under all three to determine which (if any) applies.
Traditional Innocent Spouse Relief – Section 6015(b)
The original innocent spouse provision. To qualify, you must show:
A joint return was filed for the year in question.
The return had an understatement of tax attributable to “erroneous items” of the other spouse (unreported income, improper deductions, false credits).
At the time you signed the return, you did not know and had no reason to know about the understatement.
It would be inequitable to hold you liable.
You filed Form 8857 within two years of the IRS first beginning collection activity against you.
This relief eliminates your liability for the entire understatement attributable to the other spouse. If you qualify, you owe nothing on that portion.
The hardest element to prove is usually the “did not know and had no reason to know” standard. The IRS looks at your education, your involvement in family finances, whether you reviewed the return, what would have been obvious from your lifestyle, and other facts to determine whether a reasonable person in your situation would have known.
Separation of Liability – Section 6015(c)
For taxpayers who are divorced, legally separated, or no longer living together for at least 12 months, separation of liability allocates the deficiency between the spouses as if each had filed a separate return.
To qualify:
You must be divorced, legally separated, widowed, or not have lived with your spouse for at least 12 months before filing the request.
A joint return was filed for the year in question.
You filed Form 8857 within two years of the IRS first beginning collection activity.
You did not have actual knowledge of the erroneous item attributable to the other spouse at the time you signed.
Separation of liability does not require proving “inequity.” It just requires the divorce/separation status and lack of actual knowledge.
The IRS allocates the tax debt between the spouses based on which items belonged to which spouse. You are only responsible for the portion attributable to your own income, deductions, and credits.
Equitable Relief – Section 6015(f)
The catch-all provision. Equitable relief is available when you do not qualify for Section 6015(b) or Section 6015(c) but it would still be inequitable to hold you liable for the tax.
Equitable relief covers a broader range of situations than the other two provisions. Specifically:
It applies to understatements AND underpayments (where the return was correct but the tax was not paid).
It does not require lack of knowledge in all cases.
It does not require divorce or separation.
The two-year deadline for filing has been eliminated for equitable relief (since Notice 2011-70 and Rev. Proc. 2013-34). You can request equitable relief as long as the collection statute has not expired, or within the refund claim period if you have already paid.
The IRS evaluates equitable relief using factors set out in Rev. Proc. 2013-34:
Marital status (divorced, separated, or abused).
Economic hardship that would result from collection.
Knowledge or reason to know of the understatement or underpayment.
Legal obligation to pay under a divorce decree.
Whether the requesting spouse received significant benefit from the unpaid tax.
Mental or physical health of the requesting spouse.
Compliance with tax laws since the year in question.
Abuse by the non-requesting spouse.
The “abuse” factor is significant. Cases involving documented spousal abuse often qualify for equitable relief even when the technical elements of the other relief types are not met.
How Each Type Is Different
The three paths matter because they cover different fact patterns.
Section 6015(b) is for taxpayers still married to the spouse who caused the problem, where the IRS understatement happened years ago and you did not know about it.
Section 6015(c) is for taxpayers who are now divorced or separated and want their share of the debt allocated separately. The “knowledge” standard is harder (actual knowledge, not “reason to know”), but the divorce makes this path easier to use.
Section 6015(f) is the safety net when neither of the others fits. It catches abuse cases, underpayment situations, and anyone outside the two-year window for the first two provisions.
The IRS evaluates all three on a single Form 8857. You do not have to pick which one to argue.
The Form 8857 Process
To request relief, you file Form 8857 (Request for Innocent Spouse Relief). The form asks for:
Your identifying information.
The tax years for which you are seeking relief.
The amount of tax debt involved.
Information about your marital history during the relevant years.
A narrative explanation of why you should get relief.
Documentation supporting your claim.
You can file Form 8857 on its own (if the IRS is already collecting against you) or in response to a specific IRS notice. The form goes to the IRS Cincinnati Centralized Innocent Spouse Operations.
The Required Notification
This is the part that catches some requesting spouses by surprise. When you file Form 8857, the IRS is required by law (under Section 6015(h)) to notify your spouse or former spouse of your request. The non-requesting spouse has the right to participate in the proceeding and to present evidence opposing your relief.
You cannot file Form 8857 secretly. The other person will find out.
For domestic violence cases, the IRS provides procedures to protect the requesting spouse’s location from the abuser, but the notification itself still happens.
The Two-Year Deadline
For Section 6015(b) traditional innocent spouse relief and Section 6015(c) separation of liability, the two-year deadline is hard. The clock starts when the IRS begins collection activity against you – typically a CP504 final notice, a levy, or similar. Once two years run, you lose those provisions.
The two-year deadline does NOT apply to Section 6015(f) equitable relief. You can request equitable relief any time before the collection statute expires or within the refund period if you have already paid.
This is a critical strategic point. If you missed the two-year window, equitable relief is still on the table.
What Happens After You File
The IRS reviews the Form 8857 and supporting documentation, gathers information from the non-requesting spouse, and makes a preliminary determination. If they grant relief, the case is closed and your liability is eliminated (in whole or in part).
If they deny relief, you have appeal rights to the IRS Office of Appeals within 30 days. Many denied innocent spouse cases get reversed at Appeals.
If Appeals also denies, you have the right to petition the United States Tax Court for review under Section 6015(e). The Tax Court can independently determine whether you qualify for relief, regardless of what the IRS concluded.
Innocent spouse Tax Court cases are one of the most successful types of tax litigation. The combination of sympathetic facts, equitable considerations, and the Tax Court’s broad discretion produces more taxpayer wins than most other tax controversy areas.
What the IRS Actually Looks At
After working many of these cases, here is what tends to matter in practice.
Strong Cases
A spouse hid significant income (offshore accounts, undisclosed business activity, side income).
The requesting spouse had limited financial sophistication and minimal involvement in family finances.
The lifestyle did not match the unreported income (no apparent benefit to the requesting spouse).
Documented abuse, coercion, or financial control by the non-requesting spouse.
The requesting spouse has been compliant with tax laws since the year in question.
The non-requesting spouse acknowledges fault or made the misstatements without the requesting spouse’s knowledge.
Weak Cases
Both spouses ran the business and made the financial decisions together.
The requesting spouse benefited from the unreported income (lifestyle improvements, asset purchases).
The requesting spouse has tax compliance problems of their own.
The “innocent” claim is being made years later as part of divorce strategy.
The understatement is small enough that knowledge is hard to deny.
The IRS is not generous on weak cases. They reject many requests where the facts do not support the elements of relief.
When Innocent Spouse Is the Right Move
Innocent spouse relief makes sense when:
The tax debt is large enough to justify the work of preparing Form 8857 and supporting documentation.
The facts clearly support one of the three relief provisions.
You can document the facts you would need to assert.
You are willing to have the non-requesting spouse notified.
You are committed to following the case through Appeals and possibly Tax Court if necessary.
Innocent spouse is NOT the right move when:
The tax debt is small enough that the work outweighs the benefit.
You actively participated in the underpayment or knew about the understatement.
You benefited financially from the actions that caused the tax debt.
You cannot document any of the facts that would support relief.
Special Situations
A few specific situations come up frequently.
Underpayment vs. Understatement
If the joint return was correct but the tax was not paid (underpayment), only equitable relief under Section 6015(f) is available. Traditional innocent spouse and separation of liability only apply to understatements (where the return itself was wrong).
Community Property States
Florida is not a community property state, so this does not affect Tampa Bay residents in most cases. But if you lived in a community property state during the relevant years (California, Texas, Arizona, etc.), there are separate community property relief provisions under Section 66 that work alongside Section 6015.
Tax Debt From an Ex-Spouse’s Business
A common pattern. One spouse runs a business, fails to pay taxes properly, and the other spouse signed the joint returns without participating in the business. Separation of liability under Section 6015(c) is often the right provision here once the divorce is final.
IRS Collection on Wages or Bank Accounts
If the IRS has already levied your wages or bank accounts for joint tax debt, you can still file Form 8857. Successful innocent spouse relief leads to refund of amounts collected from you (within limits) even after they have been taken.
The Bottom Line
Joint and several liability is the default rule for joint returns. The IRS can collect the full debt from either spouse regardless of who caused the problem. But Section 6015 provides three different escape routes for spouses who do not deserve to be on the hook.
Traditional innocent spouse relief, separation of liability, and equitable relief each cover different fact patterns. The IRS evaluates all three on a single Form 8857. The two-year deadline matters for two of them but not for the third.
Innocent spouse relief is one of the few areas in tax law where Congress built in a meaningful fairness rule. Use it if the facts support it.
Get Help Now
If you have joint tax debt that should not be yours and want to know whether Innocent Spouse Relief is the right path, contact the Law Offices of Darrin T. Mish, P.A. at (813) 229-7100 for a free consultation.