How LLC Owners Save on Taxes in 2026

IRS Form — Innocent Spouse Relief

Form 8857 — Request for Innocent Spouse Relief

Form 8857 is used to request relief from joint and several liability on a jointly filed tax return. There are three types of innocent spouse relief: (1) traditional innocent spouse relief (§6015(b)); (2) separation of liability (§6015(c)); and (3) equitable relief (§6015(f)). For tax professionals, innocent spouse relief is a critical service for clients going through divorce or who were unaware of their spouse's tax fraud.

✓ Verified 2026 Form 8857 Rules
✓ Three Types of Relief Confirmed
✓ Deadline Rules Confirmed
✓ Equitable Relief Factors Confirmed
3 Types
Innocent Spouse, Separation of Liability, Equitable Relief
2 Years
Deadline for Traditional and Separation of Liability Relief
No Deadline
Equitable Relief — No Time Limit
IRC §6015
Innocent Spouse Relief Authority

Key Rules and Authority

RuleDetail
Traditional Relief (§6015(b))No knowledge of understatement
Separation of Liability (§6015(c))Divorced or separated
Equitable Relief (§6015(f))No other relief available; no time limit
Deadline (Traditional)2 years from first IRS collection action
Deadline (Separation)2 years from first IRS collection action
NotificationIRS notifies other spouse

Three Types of Innocent Spouse Relief

TypeRequirementsDeadline
Traditional (§6015(b))Joint return; understatement due to erroneous items of other spouse; no knowledge; inequitable to hold liable2 years from first collection action
Separation of Liability (§6015(c))Divorced, legally separated, or not living together; understatement allocated to other spouse2 years from first collection action
Equitable Relief (§6015(f))No other relief available; taking into account all facts and circumstances, inequitable to hold liableNo time limit (collection statute)

Frequently Asked Questions

My client signed a joint return but didn't know their spouse was hiding income. Can they get relief?
Yes — this is the classic innocent spouse scenario. The client should file Form 8857 requesting traditional innocent spouse relief under §6015(b). The key requirements are: (1) the understatement must be attributable to erroneous items of the other spouse; (2) the requesting spouse did not know and had no reason to know of the understatement when they signed the return; and (3) it would be inequitable to hold the requesting spouse liable. The IRS will notify the other spouse and give them an opportunity to respond. The requesting spouse should document their lack of knowledge — financial records, communications, and testimony about the household finances and who controlled them.
Innocent Spouse Relief Advisory

Form 8857 — innocent spouse relief, separation of liability, equitable relief — is a high-value service for clients in difficult tax situations. Join the Uncle Kam marketplace.

Join the Marketplace
Quick Reference
Traditional ReliefNo knowledge of understatement
Separation of LiabilityDivorced or separated
Equitable ReliefNo time limit
Deadline (Traditional)2 years from collection action
IRS NotificationOther spouse notified
Partial ReliefAvailable in some cases

Master Innocent Spouse Relief for Your Clients

Form 8857 is one of 100+ IRS forms covered in the Tax Intelligence Engine. Access the full library free for tax professionals.

Join the Marketplace — Free for Tax Pros
Free access to 300+ tax strategies Join the Marketplace →