Primary deficit

Also called: Gross primary deficit · Topic: Government Budget, Fiscal Policy and FRBM · NCERT: Class 12, Ch 5 "Government Budget and the Economy"

Meaning

Primary deficit (PD) is the fiscal deficit minus the interest the government pays on its past loans. It shows how much the government needs to borrow because of this year's gap between spending and income, leaving out the cost of old debt.

• NCERT formula: PD = Fiscal deficit − Net interest liabilities

• Net interest liabilities = Interest payments − Interest receipts on net domestic lending

• Budget practice: PD = Fiscal deficit − Interest payments

It matters because it separates two things. One is the burden of old borrowing (interest). The other is whether current policies are adding to debt. A falling primary deficit is the lasting way to control public debt.

Explanation

How it works: splitting the fiscal deficit into two parts

• Fiscal deficit (FD) is the government's total borrowing requirement for the year. It equals total expenditure − (revenue receipts + non-debt creating capital receipts).

• Non-debt creating capital receipts (NDCR) are capital receipts that do not have to be repaid, such as recovery of loans and disinvestment (selling government shares in PSUs).

• Part of this borrowing only pays interest on loans taken in earlier years. The present government cannot change that cost.

• Take interest out and what is left is the primary deficit. This is the borrowing caused by today's spending and tax choices.
• Put simply: FD = Primary deficit + Interest payments.

Reading the sign: deficit, zero or surplus

• PD > 0 (primary deficit): current income does not even cover current non-interest spending. New borrowing pays for this year's programmes and for old interest.
• PD = 0: the government borrows only to pay interest on past debt. This year's programmes are fully paid for from this year's income.
• PD < 0 (primary surplus): current revenue covers current non-interest spending with money left over. That extra money helps pay interest, so the government needs to borrow less.

Worked example (NCERT Table 5.1, Central Government, % of GDP)

Step	Item	% of GDP
1	Total expenditure	15.0
2	Non-debt receipts (revenue receipts 9.2 + recovery of loans 0.1 + other receipts 0.1)	9.4
3	Fiscal deficit (1 − 2)	5.6
4	Interest payments	3.6
5	Primary deficit (3 − 4)	2.0

• Reading it: the government borrowed 5.6% of GDP in total.
• 3.6% of that paid interest on old debt.

• Only 2.0% was caused by the current year's own imbalance.

• Suppose interest had been the full 5.6%: PD would be 0, and all borrowing would go only to pay interest on past debt.

• Data note: NCERT labels this table "2024-25 (P.A.)", but its values match the 2023-24 actuals.

What makes it rise or fall

• PD rises when:
• non-interest spending (subsidies, salaries, capital expenditure) grows faster than revenue
• tax collections fall, for example in a slowdown

• disinvestment or loan recoveries come in below target, since these are non-debt receipts

• PD falls when:

• revenue grows faster, through better tax collection or higher GDP growth

• non-interest spending is controlled

• Interest does not move PD. A rise in interest payments raises the FD but leaves the PD unchanged. This is why PD is the better test of current fiscal discipline.

In India

• Legal and budget base: under Article 112, the President lays the Annual Financial Statement (the Union Budget) before Parliament. The budget reports the fiscal deficit, and PD is worked out from it as FD − interest payments.
• The size of the interest burden (2026-27 BE): interest payments are 26% of total expenditure and 40% of revenue receipts [3].
• In other words, ₹40 of every ₹100 the Centre earns goes to paying for old debt.

• This is why FD and PD differ so much in India. A large share of the Centre's borrowing only services past loans.

• Fiscal deficit context: FD is 4.4% of GDP in 2025-26 RE and 4.3% of GDP in 2026-27 BE [2][3]. In the COVID year 2020-21, it peaked at 9.2%.

• Link to the debt anchor: the Centre now aims to bring its outstanding liabilities down to about 50 ± 1% of GDP by March 2031 [3][5].
• Debt-to-GDP is 56.1% (2025-26 RE) and 55.6% (2026-27 BE) [2].
• As the debt ratio falls, interest payments shrink and money is freed for priority spending [2].
• Debt can come down in a lasting way only if the primary balance (PD) is kept low. Otherwise new debt keeps piling on top of old debt.

Don't confuse with

• Fiscal deficit: FD includes interest on past debt, while PD excludes it. FD is the total borrowing requirement. PD is the borrowing caused by the current year's imbalance only.
• Revenue deficit: RD = revenue expenditure − revenue receipts. It looks only at the revenue account and includes interest, because interest is revenue expenditure. PD covers both revenue and capital spending but leaves out interest.
• Net interest liabilities vs interest payments: NCERT subtracts net interest liabilities (interest payments minus interest received on the government's own domestic lending). Budget practice subtracts gross interest payments. The idea is the same, but the number subtracted is different.
• Budget deficit (old measure): it counted borrowing as a receipt, and the leftover gap was filled with ad hoc T-bills issued to the RBI. It was discontinued from 1997-98 [4]. PD has nothing to do with money creation. It simply removes interest from FD.

Prelims Hooks

• PD = FD − Net interest liabilities (NCERT). In budget practice, PD = FD − Interest payments. The other name for it is gross primary deficit.
• PD = 0 means the government borrows only to pay interest on past debt. PD < 0 is a primary surplus.
• NCERT Table 5.1: FD 5.6% − interest 3.6% = PD 2.0% of GDP (values match the 2023-24 actuals).
• Trap: a rise in interest payments increases the fiscal deficit but does not change the primary deficit.
• 2026-27 BE: interest payments are 26% of total expenditure and 40% of revenue receipts [3].
• Trap: FD = PD + interest payments. So FD is always larger than PD whenever interest payments are positive.

Mains Points

• PD shows current fiscal discipline better than FD.
• FD mixes in the cost of past borrowing, which the current government cannot change.

• PD isolates what this year's policies add to debt. So it is the fairer measure for judging a government's own fiscal effort.

• Interest burden, crowding-out and the case for a low PD:

• When interest takes 40% of revenue receipts (2026-27 BE) [3], it squeezes out capex and welfare spending, because interest, salaries and pensions cannot be cut.
• Heavy government borrowing also pushes up bond interest rates. This makes it costlier for private firms to borrow and invest.

• Bringing PD down, or into surplus, slows the growth of debt. This in turn shrinks future interest bills, so the cycle reverses.

• Link to the debt anchor (50 ± 1% by March 2031) [3][5]:

• A debt target can be met only if primary deficits stay low and GDP grows well.
• Critics warn that the debt ratio also depends on nominal GDP growth, which the government does not fully control. So watching the primary balance each year is still needed for year-by-year discipline.

Related concepts

• Balanced budget
• Surplus budget
• Budget deficit
• Revenue deficit
• Effective revenue deficit
• Fiscal deficit
• Net interest liabilities
• Government dissaving
• Quality of government expenditure

Read more

• Measuring the gap: balanced, surplus and deficit budgets