tax revenue shortfall; tax revenue deficit
Refers to a situation where tax revenues fall below expectations or required levels, often used in economic and fiscal policy contexts.
A tax revenue shortfall is expected this fiscal year.
Government bonds were issued to cover the tax revenue deficit.
税収 means 'tax revenue' in general, while 税収不足 specifically refers to a shortfall or deficit in that revenue.
不足 is a general term for 'shortage' or 'insufficiency'; 税収不足 applies this concept specifically to tax revenue.
Compound of 税収 (tax revenue) and 不足 (shortage, insufficiency).