This Selected Issues paper on Ireland focuses on ensuring an inclusive and growth-enhancing fiscal policy mix. It assesses the scope for improving the tax system toward a more growth-friendly structure, and for achieving efficiency gains in public expenditure. It also discusses upcoming impediments to long term fiscal sustainability and proposes options to achieve a more growth friendly and equity-enhancing revenue and expenditure policy mix. Under the 2021 National Development Plan, the government plans to significantly expand investment to historically high levels over the medium term. Good progress has been achieved in raising public spending efficiency but there is scope for further improvement. The stylized facts highlight the need for reforms to broaden the tax base and find new and stable sources of revenues as well as improving public expenditure efficiency. Public spending should focus on growth-friendly spending and reducing efficiency gaps. Decisive reforms are needed to ensure the future sustainability of the pension system and safeguard long term fiscal sustainability.