The balance of payments: where every item goes, and why it always adds up

The balance of payments (BoP) is the systematic record of every economic transaction between the residents of a country and the rest of the world over a period (CUET 2019 asks for the name). Three words carry the definition. Residents: it is about who lives and operates in the country, not about citizenship. Every transaction: goods, services, income, gifts, loans, investments. Period: it is a flow, like a bank statement for a year, not a stock like a bank balance.

Each entry is a credit if it brings in foreign exchange, or a debit if it takes it out. An export is a credit, an import a debit. A foreigner buying our shares is a credit, us buying theirs a debit.

Three different “balances” get mixed up in exam options, so fix them now:

Everything in the balance of payments sits in one of three blocks. The current account records flows that are income-like: you earn or spend them now. The capital account and the financial account record changes in what countries own and owe each other.

A word on names. The IMF’s sixth Balance of Payments Manual splits the old “capital account” into a small capital account (capital transfers) and a larger financial account (investment, lending and reserves), and the Reserve Bank of India publishes its figures in that layout alongside the older one (RBI press release of 30 June 2021, read 5 October 2026). Most entrance papers still use the older sense: JNU 2016 treats funds a foreign company brings in, share purchases and a non-resident buying a house as the capital account. When a question says “capital account”, answer for all of them.

Why does the account sum to zero? Because every transaction is an exchange, and an exchange has two sides. If India exports tea, it gives up goods and receives something: money. The goods leaving is the credit, and the money arriving, whether as a deposit abroad or as reserves, is the matching entry. So every transaction produces two entries of the same size, and a total of zero (Hyderabad 2010 asks exactly that).

Here is the rule used in the drill. A credit is an export, income or a transfer received, a rise in what foreigners own of ours, or a fall in what we own of theirs, including reserves. A debit is the opposite. Do all eight, and watch the ledger at the bottom stay at zero.

The commonest question type is a list of items and an instruction to pick those that belong, or do not belong, to the current account. These are the items the papers actually use:

Two examples of how the cases get worded. Hyderabad 2010 asks where investment income from abroad appears (current account), and CUET 2024 says the current account balance always includes the balance on investment income. The word “always” is correct, because primary income is a permanent part of the current account.

Group the entries into three: the current account (CA), the capital and financial flows other than reserves (call it F), and the change in reserves. With credits and debits all counted, the total is zero, which gives the working form of the identity:

Move the sliders. Each bar adds to the one before it, from the trade balance up to the overall balance on the right, and the last panel says who has to absorb it.

So what is a “deficit”?

If the whole account always sums to zero, how can there be a deficit? The answer is that the words refer to the entries before the reserve change. Transactions people make for their own reasons, such as trading, investing and borrowing, are called autonomous. The reserve change is accommodating: it happens only to cover the gap. A deficit means autonomous payments exceed autonomous receipts. CUET 2026 states the converse: when the central bank’s holding of reserves does not change, the balance of payments is exactly zero.

Three consequences that the papers test:

• A capital account surplus does not guarantee a rise in reserves. It depends on the current account too (JNU 2017: the answer is “none of the above”).
• Rising reserves mean the autonomous items sum to a surplus. JNU 2014 (our opening puzzle): reserves rose because net capital inflows exceeded the current account deficit.
• Under a floating rate the exchange rate absorbs it. JAM 2021: if the net inflow of foreign currency is negative, the country’s reserves may fall under a fixed rate, or its currency may depreciate under a flexible one. Reserves cannot rise and the currency cannot appreciate.

A current account deficit means the country is spending more abroad than it earns there. The difference has to come from somewhere, and the identity says where: from net inflows on the capital and financial accounts, or from reserves. UGC NET Dec 2023 lists the sources: FDI inflows, foreign portfolio investment, borrowing from the IMF or the World Bank, and drawing down reserves. All four are correct.

The same paper has statements with a trap. A deficit “may be covered by buying assets from foreigners” is false, because buying foreign assets is a payment, which widens the gap instead of closing it. That a $50 million deficit can be financed by $50 million of net capital inflows is true, and it is the identity itself.

Curing a deficit

JNU 2019 lists the traditional remedies: import controls, export promotion, foreign-exchange control and devaluation. All four are correct. Hyderabad 2018 lists the causes of disequilibrium: a change in domestic demand, differences in inflation, and international capital flows. Devaluation is the one with the most subtle economics, and it gets its own page: the Marshall-Lerner condition and the J-curve.

The account looks like bookkeeping, but behind it is a statement about the whole economy: a country that runs a current account deficit is investing more than it saves. The derivation is four short steps, and the picture in step three is worth playing with.

Hyderabad 2014 asks the identity in two forms: a country’s current account balance equals the change in its net foreign wealth, and for open economies S = I + CA. It is also the setting for the Feldstein-Horioka puzzle (Hyderabad 2020). If capital moved freely across borders, a country’s saving would not need to match its own investment, since it could lend abroad. Feldstein and Horioka found that, in the data, countries with high saving have high investment, which suggests that in practice capital is less mobile than theory says.

India’s current account is usually in deficit because a large deficit in goods trade is only partly offset by surpluses on services and on private transfers, mostly remittances. The Reserve Bank’s release for January to March 2021, for instance, reported a current account deficit with a larger goods deficit, a rise in net services receipts led by computer, transport and business services, and private transfer receipts of $20.9 billion in the quarter (RBI press release, 30 June 2021, read 5 October 2026). The financial account, with foreign portfolio and direct investment, supplied the finance.

This page deliberately gives no more figures. Current figures change with every quarterly release, and the planned page on India’s external sector will set them out with their sources and read dates.

Graded by each paper’s own difficulty. A handful of questions are left out because they depend on facts that have dated (which country has the largest external debt “today”), or because the key is arguable. The reasons are listed at the top of the source file.