Here ya go:
Yes, the standard deduction acts as a form of indirect subsidy by reducing taxable income, effectively lowering a taxpayer's tax bill, much like a direct payment, but it's a universal benefit for most filers rather than targeted financial aid, though its value depends on the taxpayer's tax bracket, making it a larger financial benefit for higher earners. It's considered a "tax expenditure," a government provision that reduces tax revenue to encourage certain behaviors or provide general financial relief, similar to how deductions for mortgage interest or charitable giving function as subsidies for those specific activities, notes the Congressional Budget Office.