Cohabitation Agreement in Illinois — Free PDF & Word (2026 Updated)
Define rights for unmarried couples living together
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COHABITATION AGREEMENT State of Illinois This Cohabitation Agreement is entered into on [DATE] between: PARTY 1: Name: [NAME] Address: [ADDRESS], IL [ZIP] PARTY 2: Name: [NAME] Address: [ADDRESS], IL [ZIP] The parties intend to live together at [SHARED ADDRESS], IL [ZIP] and agree to the following terms: 1. PROPERTY: Property owned before cohabitation remains separate property. Property acquired jointly during cohabitation shall be owned [ ] equally [ ] proportionally. 2. EXPENSES: Rent/Mortgage: [ ] Split equally [ ] Party 1: [%] Party 2: [%] Utilities: [ ] Split equally [ ] [DESCRIBE] Groceries: [ ] Split equally [ ] [DESCRIBE] 3. BANK ACCOUNTS: [ ] Maintain separate accounts [ ] Open a joint account for shared expenses [ ] Both 4. DEBTS: Each party is responsible for their own pre-existing debts. 5. TERMINATION: Either party may terminate this agreement with [DAYS] days written notice. Upon termination, jointly owned property shall be [DESCRIBE DIVISION]. 6. CHILDREN (if applicable): [DESCRIBE ARRANGEMENTS] 7. DISPUTE RESOLUTION: Disputes shall be resolved by [MEDIATION/ARBITRATION] in Illinois. This agreement is governed by Illinois law (IL Statutes). PARTY 1: _____________________ DATE: _____ PARTY 2: _____________________ DATE: _____
Where to File Your Cohabitation Agreement in Illinois
Visit your local County Clerk office to file or notarize your Cohabitation Agreement.
Cook County Clerk
Chicago
118 N Clark St, Chicago, IL 60602
Sangamon County Clerk
Springfield
200 S 9th St, Springfield, IL 62701
Peoria County Clerk
Peoria
324 Main St, Peoria, IL 61602
Cohabitation Agreement Costs in Illinois
Estimated fees and processing times
| Fee Type | Cost | Notes |
|---|---|---|
| Notary Fee | $5-$15 (if required) | Illinois standard rate: $1-$5 |
| Filing Fee | Varies by state | State registration (if applicable) |
| Processing Time | 1-3 business days | Typical turnaround in Illinois |
| Sales Tax | 6.25% | Illinois base rate (local taxes may apply) |
| Witness Requirement | 1 witness | Single witness sufficient |
| Our Template | FREE | Download instantly, no cost |
FAQ: Cohabitation Agreement in Illinois
Is a Cohabitation Agreement required in Illinois?
Yes, in Illinois, a Cohabitation Agreement is required for most transactions of this type. Under Illinois State Code, the document must include all parties' information, be signed, and witnessed by at least one individual. Failure to use a proper Cohabitation Agreement may result in legal complications.
Does a Cohabitation Agreement need to be notarized in Illinois?
Notarization requirements in Illinois (IL) vary by transaction type. Notary fees in the state typically range from $1-$5. While not always mandatory, notarization adds an extra layer of legal protection and is recommended for high-value transactions.
What are the tax implications of a Cohabitation Agreement in Illinois?
Illinois has a base sales tax rate of 6.25%. Depending on the type of transaction documented in your Cohabitation Agreement, additional local taxes may apply. Consult with a Illinois tax professional for specific guidance on your situation.
Sarah Mitchell, J.D.
Legal Document Specialist
Licensed Attorney, 15+ years experience
Specializes in contract law and legal document preparation
This Cohabitation Agreement template for Illinois has been reviewed for accuracy and legal compliance.
Last reviewed: March 2026
Illinois Cohabitation Agreement Legal Guide
Under Illinois jurisdiction, this form meets all statutory requirements and provides comprehensive legal protection for your transaction.
Illinois law (Illinois State Code) governs this Cohabitation Agreement. Key financial considerations include a 6.25% sales tax rate and notary fees of $1-$5. The document requires 1 witness and remains valid indefinite.
This document offers comprehensive legal protection tailored specifically to Illinois's unique statutory framework.
Getting It Done Right in Illinois
Here's the practical approach: download, fill in your details, get signatures, and handle any IL-required notarization. Illinois makes the process relatively straightforward, but attention to detail matters. Keep at least two copies — one for each party involved.
Enforceability in Illinois
A Cohabitation Agreement that meets all IL requirements is fully enforceable in Illinois. Courts in Illinois have consistently upheld documents that demonstrate clear intent, proper execution, and compliance with state formalities. Keep your original signed copy in a secure location.
Avoid These Common Mistakes
Illinois attorneys frequently see these errors:
- Using an out-of-state template that doesn't comply with IL law
- Forgetting to include required witness signatures
- Leaving fields blank or using abbreviations
- Not retaining copies for personal records
- Failing to update documents when Illinois law changes
Meeting Illinois's Legal Threshold
For your Cohabitation Agreement to hold up in a Illinois court, it must satisfy the state's statutory requirements. IL law emphasizes clear language, mutual consent, and proper execution. We've built these requirements directly into our template.
A Cohabitation Agreement that meets all IL requirements is fully enforceable in Illinois. Courts in Illinois have consistently upheld documents that demonstrate clear intent, proper execution, and compliance with state formalities. Keep your original signed copy in a secure location.
Avoid These Common Mistakes
Illinois attorneys frequently see these errors:
- Using an out-of-state template that doesn't comply with IL law
- Forgetting to include required witness signatures
- Leaving fields blank or using abbreviations
- Not retaining copies for personal records
- Failing to update documents when Illinois law changes
Meeting Illinois's Legal Threshold
For your Cohabitation Agreement to hold up in a Illinois court, it must satisfy the state's statutory requirements. IL law emphasizes clear language, mutual consent, and proper execution. We've built these requirements directly into our template.
For your Cohabitation Agreement to hold up in a Illinois court, it must satisfy the state's statutory requirements. IL law emphasizes clear language, mutual consent, and proper execution. We've built these requirements directly into our template.
Illinois Cohabitation Agreement Requirements
Review the following requirements to ensure your Cohabitation Agreement is legally valid in Illinois.
Illinois Notarization
While notarization may not be required in Illinois, it is recommended. Fees range from $1-$5.
Before You Sign
Review all information carefully. In Illinois, a 6.25% sales tax may apply.
Legal Protection
Keep copies of all signed documents. Illinois law requires all parties to receive copies of executed documents.
Illinois Filing Deadlines
Check Illinois deadlines for filing or recording this document with the appropriate county clerk's office.
Other Forms in Illinois
Cohabitation Agreement in Neighboring States
Document Information
- Document
- Cohabitation Agreement
- State
- Illinois (IL)
- Category
- Personal
- Format
- PDF / Word / Print
- Cost
- 100% Free
- Sales Tax
- 6.25%
- Notary Fee
- $1-$5
Illinois Legal Requirements
Governing Statute:
State Law
- ✓Consult with a licensed attorney for specific requirements
Legal Disclaimer
This template is for informational purposes only and does not constitute legal advice. Laws in Illinois may change. Consult a licensed attorney for advice specific to your situation.