High-debt euro area economies face fiscal consolidation in a low-growth environment. We use a Heterogeneous Agent New Keynesian model to assess how consolidation composition shapes aggregate and distributional outcomes in a representative high-debt economy. The status quo is not neutral: delay generates its own costs through lower investment, higher debt service, and damage to constrained households. For a given fiscal effort, expenditure-based consolidation achieves faster debt reduction with lower growth and distributional costs than revenue-based consolidation […]