House Bill No. 5474 Public Act No. 24-143, Page 23, Sec 17
Sec. 17. (NEW) (Effective October 1, 2024, and applicable to rental agreements entered into, renewed or extended on or after October 1, 2024)
No rent increase for a dwelling unit shall be effective unless the landlord has given the tenant of such dwelling unit written notice of the proposed increase not less than forty-five days before the day on which the increase is proposed to take effect, except in the case of a lease with a term of one month or less, such notice shall be given a number of days equivalent to the length of a full term of such lease. A tenant’s failure to respond to such notice shall not constitute the tenant’s agreement to such proposed increase. Nothing in this section shall be construed to (1) allow a landlord to increase the rent during the term of a rental agreement, or (2) alter any notice requirements concerning increases in rent imposed by federal law.