Business Economics · Public Finance

Public Expenditure and Public Debt for CA Foundation Business Economics

Updated 1 October 2026 · Fact-checked

Public expenditure is money the government spends on administration, defence, welfare and development. Public debt is what it borrows when revenue falls short. To solve MCQs, classify the item (revenue or capital, internal or external), then identify who bears the burden and when it arises.

Understand Public Expenditure and Public Debt

Governments need money to run the country. Public expenditure is the spending by central, state and local governments. They spend to keep law and order, provide defence, build roads and run schools and hospitals. They also spend to reduce inequality and stabilise the economy.

Expenditure is classified in several ways. The most tested split is revenue expenditure versus capital expenditure. Revenue expenditure is recurring spending that does not create an asset or reduce a liability. Examples are salaries, interest payments, pensions and subsidies. Capital expenditure creates assets or reduces liabilities. Examples are building a bridge, buying machinery and repaying a loan. Another split is developmental versus non-developmental expenditure. Another is transfer payments (pensions, subsidies, with no goods or services received in return) versus non-transfer (spending on goods and services, which adds to output).

Public expenditure has effects on production, distribution and the whole economy. It can raise output by building infrastructure and by improving health and education. It can reduce inequality through transfers and subsidies to poorer groups. In a slump, higher spending lifts demand and employment. Too much spending can cause inflation or crowd out private investment. Wagner's law says public expenditure tends to rise as a share of national income as the economy develops. In other words, it tends to grow faster than national income. Growth is also explained by rising population, urbanisation, defence needs and welfare demands.

Public debt is the amount a government borrows. Sources are internal (borrowing from within the country: banks, public, RBI) and external (borrowing from foreign governments, institutions like the World Bank or IMF, or foreign markets). With internal debt, the money stays inside the country, so there is no direct loss of national resources. External debt brings in foreign resources now but must be repaid in foreign exchange later.

The burden of debt is the sacrifice the community bears. Internal debt shifts money from taxpayers to bondholders within the country, so it is mainly a distribution issue. External debt has a real burden: resources flow abroad when interest and principal are paid. Debt management means handling the size, cost and maturity of debt. Tools include refunding, conversion of old loans to lower interest, repaying through budget surpluses, and sinking funds.

Key formulas to remember

Revenue expenditure: Recurring spending that creates no asset and reduces no liability; Examples: salaries, interest, pensions, subsidies. Interest on debt is revenue expenditure.
Capital expenditure: Spending that creates an asset or reduces a liability; Examples: roads, dams, machinery, loan repayment.
Wagner's law: Public expenditure tends to rise as a share of national income as an economy develops; This means expenditure tends to grow faster than national income. It is a tendency stated for growing economies, not a fixed rule.
Internal vs external debt: Internal = borrowed within the country; External = borrowed from outside; External debt is repaid in foreign exchange and carries a real burden.
Transfer payment: Payment made with no good or service received in return; Examples: pensions, unemployment benefits, subsidies.

How to solve Public Expenditure and Public Debt questions

Most questions test classification or a cause-and-effect link. Use this order.

1Read the question stem and note whether it asks about expenditure or debt.
2For expenditure, ask: does it create an asset or reduce a liability? If yes, capital; if no, revenue.
3Check if it is a transfer (no goods or services received) or a spending on goods and services.
4For debt, find the lender. Domestic lender means internal; foreign lender means external.
5For burden questions, ask whether resources leave the country. If yes, the burden is real and direct.
6For growth or effect questions, match the keyword: Wagner suggests expenditure rises with income; slump suggests higher spending.
7Eliminate options with absolute words like always or never, then pick the best fit.

Quickest way: Asset test and lender test

When to use it: Use for classification MCQs where you have under a minute per question.

Apply the asset test: asset created or liability cut means capital; otherwise revenue.
Apply the lender test: who lent the money decides internal or external.
Remember that interest, salaries, pensions and subsidies are always revenue items.
Remember that external debt means repayment in foreign exchange.
If two options look right, choose the one that matches the exact definition wording and skip if still unsure.

Common mistakes in Public Expenditure and Public Debt

Classifying interest payments as capital expenditure
Interest relates to a loan, so it feels like a capital item.
Fix: Interest creates no asset and does not reduce the loan principal, so it is revenue expenditure. Only repaying the principal is capital.
Calling every subsidy developmental capital spending
Subsidies sound helpful for growth.
Fix: Subsidies are recurring and create no asset, so they are revenue expenditure and a transfer payment.
Saying internal debt has no burden at all
The money stays in the country, so it seems free.
Fix: Internal debt still shifts income from taxpayers to bondholders and may need higher taxes. It has no direct loss of resources abroad, but it is not costless.
Mixing up internal debt with debt in rupees only
Students link internal with currency, not with the lender.
Fix: Use the lender test. Internal means borrowed from within the country.
Treating Wagner's law as an exact rule
Notes state it as a flat statement.
Fix: Read it as a tendency that public expenditure rises as a share of national income as the economy develops, and choose options worded that way.

Worked examples

Example 1

Which of the following is capital expenditure of the government? (a) Payment of salaries to employees (b) Interest on past borrowings (c) Construction of a new highway (d) Payment of old-age pensions

Show the solution

Apply the asset test to each option.
Salaries are recurring and create no asset, so revenue.
Interest creates no asset and does not cut the loan, so revenue.
A highway is a lasting asset, so capital.
Pensions are recurring transfers, so revenue.

Answer: (c) Construction of a new highway

Example 2

A government borrows from a foreign institution such as the World Bank. Which statement is correct? (a) It is internal debt and has no burden (b) It is external debt and repayment needs foreign exchange (c) It is internal debt repaid by printing money (d) It is a transfer payment

Show the solution

The lender is a foreign institution, so the debt is external.
This eliminates (a) and (c), which call it internal.
A transfer payment is spending, not borrowing, so (d) is wrong.
External debt is repaid with interest in foreign exchange, which draws resources out of the country.

Answer: (b) It is external debt and repayment needs foreign exchange

Example 3

Which of the following is a transfer payment? (a) Purchase of defence equipment (b) Payment of unemployment allowance (c) Building a school (d) Salary paid to judges

Show the solution

A transfer payment gives money with no good or service received in return.
Defence equipment is bought in exchange for goods, so it is not a transfer.
Unemployment allowance is paid without any service in return, so it is a transfer.
A school is a purchase of construction services, and judges' salaries pay for services, so neither is a transfer.

Answer: (b) Payment of unemployment allowance

Exam tips

Most questions are definitional. Learn the revenue and capital examples as a short list.
Watch for the word interest, which students often misplace as capital.
For debt questions, find the lender first and then decide on burden.
Negative marking is 0.25 per wrong answer, so guess only after eliminating two options.
Treat statements with always or never with suspicion.

Practice questions from Public Finance

Public Expenditure and Public Debt: frequently asked questions

What is the difference between revenue and capital expenditure of the government?

Revenue expenditure is recurring spending that neither creates an asset nor reduces a liability, such as salaries and interest. Capital expenditure creates assets or reduces liabilities, such as building roads or repaying a loan.

What is the difference between internal and external public debt?

Internal debt is borrowed from lenders within the country, such as banks and the public. External debt is borrowed from foreign governments, institutions or markets and must be repaid in foreign exchange.

What is the burden of public debt?

It is the sacrifice the community bears because of borrowing. External debt carries a direct real burden because resources go abroad on repayment. Internal debt mainly redistributes income between taxpayers and bondholders.

What is Wagner's law?

It states that public expenditure tends to rise as a share of national income as the economy develops. This means it tends to grow faster than national income. It describes a long-run tendency, not an exact rule.