Form 8857, Request for Innocent Spouse Relief (current revision June 2021), is the single form behind all three types of innocent spouse relief — the IRS considers §6015(b), separation of liability, and equitable relief from the one filing. This page walks the form itself: what each part asks, the statement of facts you must attach, where the form goes, what the IRS does with it, and the full road afterward — preliminary determination, disagreement, Appeals, and the Tax Court window. Which relief type fits you is the hub’s decision table; this page owns the process.
General information, not tax or legal advice. Form, addresses, and process below are from Form 8857 (Rev. June 2021), its instructions (06/2021), Publication 971, and IRM 25.15 — confirm the current revision on IRS.gov before filing.
The form collects three things: the facts of the marriage and the return, the story behind the tax problem, and your current finances. Its questions track the relief tests — who controlled the money, what you knew and when, whether there was abuse or financial control, whether you significantly benefited, whether paying would cause hardship, and whether you have complied with the tax law in later years.
The piece filers most often underrate is the statement of facts. It is not an optional extra: you must attach a statement explaining why you qualify, covering the marriage and household facts, who handled the finances, your knowledge of the erroneous item or of the nonpayment, any abuse or financial control, significant benefit, hardship, and your later-years compliance. For equitable relief, the IRS weighs exactly these facts under Rev. Proc. 2013-34 — the statement is the case.
Cases are worked by the Cincinnati Centralized Innocent Spouse Operation (CCISO) at the Florence address.
The IRS must contact your spouse or former spouse. There are no exceptions — not even for victims of abuse or domestic violence. The IRS tells the nonrequesting spouse that the form was filed, invites them to participate and submit information, and sends them the preliminary and final determinations. What the IRS does not disclose is your current name, address, phone number, employer, income, or assets — but other information used in making the determination may be shared. If contact from the IRS is a safety concern, plan around it with professional help before you file; you cannot opt out of the notice.
| Stage | What happens | Clock |
|---|---|---|
| CCISO completeness review | The IRS reviews the filing and contacts the nonrequesting spouse. IRM 25.15.2 says you will be contacted within 30–45 days of receipt; if nothing arrives after 45 days, the CCISO line is 855-851-2009 | 30–45 days for first contact |
| Preliminary determination | Once the IRS has the information it needs, it sends a preliminary determination letter to both spouses | — |
| Disagreement (optional) | Either spouse may dispute the preliminary determination on Form 12509 (see below) | 30 days from the letter |
| Final determination | If neither spouse appeals, a final determination letter follows. If either appeals, the IRS Independent Office of Appeals considers the case and issues the final determination | — |
| Tax Court petition | The requesting spouse may petition the U.S. Tax Court after a final determination — or if 6 months pass with no final determination | No later than the 90th day after the final determination is mailed |
A late Tax Court petition cannot be reviewed — the 90 days are jurisdictional. Note also what the IRS does not publish: any overall decision deadline. Timelines circulating on form-guide sites are estimates, not IRS commitments.
Form 12509, Innocent Spouse Statement of Disagreement (Rev. May 2018), is the disagreement step, and it answers the preliminary determination — not a final denial. Present your facts in chronological order with specific dates, sign under penalties of perjury, and send it to the address on the determination letter, not directly to Appeals; sending it to Appeals delays the case. Appeals then issues the final determination.
The IRS generally cannot collect the tax for the years in your request from you while it is pending — but interest and penalties keep accruing, and the 10-year collection period is extended by the pendency plus 60 days. And file the complete record the first time: since 2019, Tax Court review under §6015(e)(7) is de novo but built on the administrative record you created, plus newly discovered or previously unavailable evidence. What you leave out of Form 8857 may never get in front of the court.
One more participant to expect: if you petition the Tax Court, the nonrequesting spouse receives notice of the petition and may intervene to become a party to the case.
What happens after you file Form 8857? The IRS reviews the filing for completeness, contacts your spouse or former spouse as the law requires, and then sends both spouses a preliminary determination. Either spouse has 30 days to disagree on Form 12509; Appeals then issues the final determination, and the requesting spouse has 90 days from that letter to petition the Tax Court — or may petition once 6 months pass with no final determination.
How do I fill out IRS Form 8857? Complete each part for every year you are requesting relief for, and attach the required statement of facts for each year — marriage and household facts, who controlled the finances, what you knew, hardship, and later compliance. File it separately from your tax return, to the Covington/Florence addresses or fax number above, with your name and SSN on every attachment.
How long does a Form 8857 request take? The IRS publishes no overall decision deadline. The one published front-end anchor is contact within 30–45 days of receipt (IRM 25.15.2), and the one hard back-end anchor is yours: if 6 months pass with no final determination, you may petition the Tax Court rather than keep waiting.
General information, not tax or legal advice. Sources: Form 8857 (Rev. June 2021) and Instructions for Form 8857 (06/2021), including “Where To File,” “The IRS Must Contact Your Spouse or Former Spouse,” and “What Happens After You File Form 8857”; IRS Publication 971 (Rev. December 2021); IRM 25.15.2; Form 12509 (Rev. May 2018); 26 USC §6015(e). Currency verified 2026-10-23.