tax expenditure編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看tax expendituretax expenditure — 名詞名詞1. A revenue loss for the government due to special tax provisions.1.名詞釋義稅式支出A revenue loss for the government due to special tax provisions.例句The tax expenditure on mortgage interest deductions reduces federal revenue.