For most private tenancies in Galway, rent can generally be reviewed only once every 12 months and the increase is capped at the lower of 2% or the rate of inflation measured by the HICP. The landlord must give at least 90 days’ notice using the required rent review notice and provide the relevant details, including the new rent. Different rules or exemptions may apply in certain circumstances, such as some newly created tenancies, so check the latest guidance on RTB.ie or gov.ie. If you believe an increase is invalid, the RTB can determine the issue through its dispute resolution process.