In order to calculate the amount of a deficit (when spending exceeds revenue earned), several different methods can be used, each with its own set of implications for the overall economy
[Revenue deficit = Revenue expenditure – Revenue receipts]
[Gross fiscal deficit = Total expenditure – (Revenue receipts + Non-debt creating capital receipts)]
[Gross fiscal deficit = Net borrowing at home (Money directly borrowed from the public through debt instruments + indirectly from commercial banks through Statutory Liquidity Ratio) + Borrowing from RBI + Borrowing from abroad]
[Gross primary deficit = Gross fiscal deficit – Net interest liabilities]
A budget deficit occurs when current costs exceed the country’s recurring revenue. To reduce the budget deficit, a country must reduce certain spending, increase revenue-generating activities, or do both. A budget surplus counteracts a budget deficit. In this instance, revenue exceeds current expenses, leaving the country with surplus funds. A budget is balanced when the inflows match the outflows.