This document is a staff report from the International Monetary Fund (IMF) on selected issues related to Peru. It discusses Peru's prudent fiscal policy in recent years which has maintained a broadly neutral fiscal stance despite higher commodity prices and revenue. This helped support macroeconomic stability. The report assesses how fiscal policy effectiveness depends on estimating potential revenue levels accurately, which can be challenging in Peru given structural changes and commodity price volatility. It uses an analytical model to examine macroeconomic outcomes under different fiscal policy stances, such as a neutral stance versus a balanced budget approach.