BoP equilibrium: the overall balance, reserves and errors

Balance of Payments and Exchange Rates · section 4 of 12

In this note
  1. Detail
  2. Prelims Hooks
  3. Mains Points

Detail

1. How a deficit is financed

  • Current account deficit (CAD): a country pays out more to the world than it earns. This covers trade in goods and services, income and transfers.
  • A country that spends more than it earns abroad must sell assets or borrow. An individual has to do the same.
  • The two ways to finance a CAD:
  • Capital account surplus (net capital inflow): foreigners invest in India or lend to India through FDI, FPI, loans and NRI deposits.
  • Drawing down reserves: the RBI sells some of its stock of foreign currency.

  • Identity: current account + capital account ≡ 0, once reserve changes are counted inside the capital account.

  • Every rupee of CAD has to be matched by an equal inflow of funds from somewhere.

  • BoP equilibrium: private and official international lending fully finance the CAD, so there is no reserve movement.

  • Worked example:
  • CAD = −$50 bn and net capital inflow = +$50 bn → reserves do not change → the BoP is in equilibrium.
  • If the inflow is only +$35 bn, the RBI must sell $15 bn of reserves to cover the gap.

2. Overall balance and reserves

  • Formula: Overall balance = CA + KA + errors and omissions.
  • BoP surplus: the overall balance is above 0 and official reserves rise.
  • BoP deficit: the overall balance is below 0 and official reserves fall.
  • Official reserve sale: in a deficit, the RBI sells foreign exchange to cover the gap.
  • The monetary authority (the RBI in India) is the ultimate financier of any deficit and the recipient of any surplus.
  • Recent Indian data:
  • Q2 2022-23 (July-September 2022): CAD of $30.9 bn (3.8% of GDP). Reserves had a depletion of $30.4 bn [2].
  • Q2 2023-24: CAD narrowed to $8.3 bn (1.0% of GDP). Reserves had an accretion of $2.5 bn [2].
  • H1 2023-24 (April-September 2023): reserve accretion of $27.0 bn [2].
  • "Accretion" means reserves were added. "Depletion" means reserves were used up.

  • FY 2024-25: CAD was only 0.6% of GDP. Strong services exports and steady remittances kept it low [3].

  • Reserve buffer: forex reserves were $697.9 bn (20 June 2025). This is enough to pay for more than 11 months of goods imports [3].

3. Sign-convention trap (NCERT)

BoP deficit Balanced BoP BoP surplus
Overall balance < 0 = 0 > 0
Reserve change (as recorded) > 0 = 0 < 0
  • Why a fall in reserves is shown as positive: a fall in reserves is a source of funds, like money coming in, so it carries a plus sign.
  • Why a rise in reserves is shown as negative: a rise is a use of funds, like buying a foreign asset, so it carries a minus sign.
  • RBI's BoP tables also show a reserve increase with a minus sign.
  • Exam trap: "(−) in the reserves row" in an RBI table means reserves went up, not down.

4. Autonomous vs accommodating transactions

Autonomous transactions Accommodating transactions
Made for their own reasons, such as profit or consumption, independent of the BoP position Made to fill the BoP gap
"Above the line" "Below the line"
Their net balance defines a surplus or deficit Official reserve transactions are the key item
  • Official reserve transactions: the central bank's sales or purchases of reserves to finance a deficit or absorb a surplus (NCERT Q2).
  • Why they matter more under fixed exchange rates:
  • Under Bretton Woods (1944-1971), central banks had to defend a fixed parity, so any autonomous gap had to be closed by reserve sales or purchases.
  • Under a clean float, the exchange rate moves to close the gap, so reserve changes are close to zero.
  • India today runs a managed float. The RBI buys and sells dollars to smooth sharp swings, so reserve transactions still matter.

5. Errors and omissions

  • Errors and omissions: the statistical discrepancy, the balancing item. Not every cross-border transaction can be recorded accurately, because of timing gaps, under-invoicing and unrecorded flows.
  • It is the figure that makes the BoP accounts add up exactly.

6. NCERT error in Table 6.1

  • CAB (−38) + KA (41.15) = +3.15.
  • For the overall balance to be 0, errors and omissions must be −3.15, not +3.15 as printed.
  • Check: −38 + 41.15 + (−3.15) = 0 ✔

7. Stock view: International Investment Position (IIP)

  • International investment position (IIP): a statement of a country's external financial assets and liabilities at a point in time.
  • Net IIP = external assets − external liabilities.
  • Flow vs stock:
  • The BoP measures flows during a period, like water entering a tank.
  • The IIP measures the stock those flows build up, like the water level in the tank.

  • India is a net debtor with a negative net IIP.

  • March 2022: net claims of non-residents on India were $359.8 bn. This rose by $5.6 bn in Q4 2021-22 [4].
  • The ratio of India's international financial assets to liabilities was 71.9% (March 2022), up from 70.8% a year earlier [4].
  • Net IIP to GDP was −11.6% (March 2022), an improvement from −13.2% the year before [4].
  • Reserve assets made up about two-thirds of India's international financial assets (March 2022) [4].

  • The IIP can change without any BoP flow: a 2.02% rupee depreciation in Q4 2021-22 changed the rupee value of liabilities (a valuation effect) [4].

  • Latest data: the RBI now publishes the IIP quarterly. The latest release is dated 30 June 2026 [5]. The figures above are from the last release retrieved (March 2022); check the newest release for current values.

8. NCERT Q17: should a CAD be a cause for alarm?

Judge a CAD on three tests.

  • Test 1: quality of financing
  • Stable FDI (long-term investment in factories and firms) is safe.
  • Hot money (short-term portfolio flows) and short-term debt can reverse suddenly. That forces reserve sales or a sharp fall in the rupee.
  • FDI inflows were $81.04 bn (provisional) in FY 2024-25, up 14% from $71.28 bn in FY 2023-24 [3].

  • Test 2: use of the funds

  • A CAD that funds investment builds future export capacity, so it helps repay itself.
  • A CAD that funds consumption does not.
  • Class 11 notes that 1980s foreign borrowing was "spent on meeting consumption needs". This fed the 1991 BoP crisis, when reserves could barely cover about two weeks of imports.

  • Test 3: size

  • The Rangarajan HLC (1993) (High Level Committee on Balance of Payments) put the sustainable CAD at about 1.6% of GDP.
  • About 2.5-3% of GDP is commonly cited today.
  • India's CAD of 3.8% of GDP (Q2 2022-23) [2] crossed this band. The 0.6% (FY 2024-25) figure [3] is well within it.

Prelims Hooks

  • Overall balance = CA + KA + errors and omissions. A BoP surplus means overall balance > 0 and reserves rise.
  • BoP equilibrium = the CAD is fully financed by capital inflows with zero reserve change. It does not mean CAD = 0.
  • In RBI BoP tables, a reserve increase carries a minus (−) sign, because it is a use of funds.
  • Autonomous = "above the line" and defines the surplus or deficit. Accommodating = "below the line" and closes the gap (official reserve transactions).
  • Official reserve transactions matter most under a fixed exchange rate (Bretton Woods) and least under a clean float.
  • Errors and omissions = the statistical discrepancy or balancing item. In NCERT Table 6.1 it should be −3.15, not +3.15.
  • IIP = a stock of external assets and liabilities at a date. The BoP = flows over a period. India's net IIP is negative (net debtor) [4].
  • Rangarajan HLC (1993): sustainable CAD ≈ 1.6% of GDP.
  • India's forex reserves: $697.9 bn (20 June 2025), covering more than 11 months of goods imports [3].

Mains Points

  • Reserves vs the exchange rate as the shock absorber:
  • The monetary authority is the ultimate financier of a BoP deficit.
  • India's managed float uses reserves to smooth rupee swings. For example, reserves fell by $30.4 bn in Q2 2022-23 [2].
  • Trade-off: large reserves act as insurance against crises like 1991, but holding them costs money (low returns and sterilisation costs).

  • Is a CAD sustainable? Use three tests:

  • Financing quality: FDI of $81.04 bn in FY 2024-25 [3] is stable, while hot money can reverse suddenly.
  • Use: investment builds future export capacity; consumption, as in the 1980s, led to 1991.
  • Size: the 1.6% (Rangarajan) or 2.5-3% threshold.
  • Link to GS-III: external sector vulnerability.

  • Flow vs stock:

  • A small CAD can still add to a large negative net IIP ($359.8 bn net claims, March 2022 [4]).
  • Rupee depreciation raises the rupee value of liabilities through valuation effects, so managing external debt matters beyond the yearly BoP.

  • Data quality:

  • Large or volatile errors and omissions can signal unrecorded flows, such as under-invoicing or informal remittances.
  • This affects how reliable BoP-based policy signals are.

Sources

  1. 1Class 12, Ch 6 "Open Economy Macroeconomics"; Class 11, Ch 3 "Liberalisation, Privatisation and Globalisation: An Appraisal" (primary)
  2. 2RBI Press Release, "Developments in India's Balance of Payments during Q2 (July-September) of 2023-24", 26 Dec 2023rbi.org.in · tier 1
  3. 3PIB, "India's Economic Surge" (July 2025)static.pib.gov.in · tier 1
  4. 4RBI Press Release, "India's International Investment Position (IIP), March 2022", 30 June 2022rbi.org.in · tier 1
  5. 5RBI, International Investment Position releases pagerbi.org.in · tier 1