Rent control laws limit the amount a landlord can increase rents on existing tenants. Most states have laws that prohibit local governments from enacting rent control measures. But over 180 municipalities in the United States have rent control measures—and all of them are located in California, Maryland, New Jersey, New York, and Washington, D.C.
The state of Oregon has a statewide rent control law that limits annual rent increases to 7% plus the increase in the consumer price index.
As of the current knowledge cutoff in 2023, Hawaii does not have statewide rent control laws that limit the amount a landlord can increase rents on existing tenants. Unlike Oregon, which has implemented a statewide rent control policy limiting annual rent increases to a certain percentage plus the consumer price index, Hawaii allows landlords to set rental prices at market rates. However, landlords in Hawaii must provide tenants with at least 45 days' notice for a rent increase if the tenancy is month-to-month, or at least 15 days' notice for tenancies that are week-to-week, as per Hawaii Revised Statutes Section 521-21(d). It's important to note that while Hawaii does not have statewide rent control, individual circumstances such as rental agreements, local ordinances, or specific housing programs may have their own rules regarding rent increases.