Illinois Prenuptial Agreements
An Illinois prenuptial agreement is governed by the Illinois Uniform Premarital Agreement Act (750 ILCS 10). It is unenforceable only if signed involuntarily, or unconscionable when executed without fair disclosure, a written waiver, and adequate knowledge.
Flat fee from $1,500 · a fraction of a $15,000–$100,000+ divorce
How Illinois divides property.
Illinois divides marital property equitably under the Illinois Marriage and Dissolution of Marriage Act. The Illinois Uniform Premarital Agreement Act lets you set your own terms instead.
WealthGuard builds your agreement around these rules — so it’s tailored to Illinois, not a generic national template.
What Illinois requires
In writing and signed (no consideration needed)
Under 750 ILCS 10/6, the agreement must be written and signed by both parties; it is enforceable without consideration.
Voluntary; fairness judged at execution
Under 750 ILCS 10/7, enforceability turns on voluntariness and, for unconscionability, on fair disclosure (or a written waiver) and adequate knowledge — judged as of execution.
In writing and signed
The agreement must be a written contract signed by both parties before the marriage.
Full and fair financial disclosure
Each party should fully disclose assets, debts, and income. Inadequate disclosure is a leading reason agreements are later thrown out.
Voluntary, without duress
Both parties must sign freely — not under pressure, and with enough time to review. Last-minute, eve-of-wedding signings invite challenges.
Your state’s rules, applied automatically.
State-aware interview
The guided interview captures the facts Illinois cares about — including disclosure and execution requirements.
Enforceability review
A 15-point review checks the agreement against the factors that get prenups thrown out before anything is generated.
Attorney-ready package
You receive the agreement, schedules, disclosures, and a memo — ready for a licensed Illinois attorney to review and finalize.
Illinois legal sources
This page is general information, not legal advice, and law changes over time. WealthGuard is not a law firm; your agreement is reviewed by an independent licensed attorney before you sign.