Part of the research conducted within the context of the Eurosystem Inflation Persistence Networks (IPN) • For most OECD countries empirical evidence characterising the aggregate and/or sectoral persistence in the rate of inflation is available. For Austria, so far no research has been conducted on these issues. Based on univariate ARMA models, the sum of the AR parameters is defined as a measure of persistence. Estimates for other OECD countries show high but over time slightly decreasing inflation persistence. However, if (unknown) structural breaks are taken into account, these measures are dramatically smaller. Therefore, in this project the aggregate and sectoral inflation persistence measures for Austria are estimated to close this gap. Univariate time series models accounting for structural breaks are applied.