I know it's harder to know for sure, but wouldn't a country's "revenues" (tax, other revenues) vs corporate revenues be better? A country doesn't have instant a

I know it's harder to know for sure, but wouldn't a country's "revenues" (tax, other revenues) vs corporate revenues be better? A country doesn't have instant access to its GDP. Or possibly just expenditure for both? I know borrowing can fill the gap between income/expenditure but it gives and idea of the actual cash that either entity can access.