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IL · PROM-NOTE · Updated July 2026 · Free

Illinois Promissory Note

Review Status: PendingAuthor: Editorial TeamMethodology: Statutory Verification

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Illinois at a glance: Usury Limit: 9% per year · Governing Law: 815 Ill. Comp. Stat. 205/4

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Overview

Promissory Notes in Illinois

Illinois sets the default legal rate of interest at 5% and the maximum contract rate at 9% per year, although numerous exceptions exist for business and mortgage loans.
Key Facts

Illinois Promissory Note — Quick Reference

RequirementIllinois Rule
Usury Limit9% per year
Governing Law815 Ill. Comp. Stat. 205/4
Legal Requirements

Illinois Legal Requirements

  • Interest rate cannot exceed 9% unless a specific statutory exemption is met.
Governing Laws

Illinois Governing Laws

815 ILCS 205/4
General Usury Law
Sets the legal interest rate limit on written contracts at 9% per year.

Read the full text of these laws at Cornell Law School's Illinois legal resources or your state legislature's official website.

Questions & Answers

Illinois Promissory Note — Frequently Asked Questions

What is the usury limit in Illinois?

The statutory limit for personal written loans is 9% per year.