Illinois Statutes Chapter 815. Business Transactions § 205/8. Rate of contracts

§ 8. When any written contract, wherever payable, shall be made in this state, or between citizens or corporations of this state, or a citizen or a corporation of this state and a citizen or corporation of any other state, territory or country (or shall be secured by mortgage or trust deed on lands in this state), such contract may bear any rate of interest allowed by law to be taken or contracted for by persons or corporations in this state, or allowed by law on any contract for money due or owing in this state.