National Income Concepts: The Short Answer
GDP (Gross Domestic Product) is the market value of all final goods and services produced within a country's borders in a year. Add net factor income from abroad (NFIA) and you get GNP. Subtract depreciation and you get NNP. Subtract net indirect taxes (indirect taxes − subsidies) from NNP at market price and you get NNP at factor cost, which is called National Income. In India the official estimates are released by the National Statistics Office (NSO), MoSPI, and the base year was changed from 2011-12 to 2022-23 with the new series released on 27 February 2026.
Key takeaway for exams: Learn three switches: domestic → national (add NFIA), gross → net (subtract depreciation), market price → factor cost (subtract net indirect taxes). Every formula below is one or more of these switches. Base-year facts are from MoSPI and PIB releases of 2026.
Pair this with five year plans of India list and monetary policy tools of RBI for the economy section.
National Income Formulas (GDP, GNP, NDP, NNP)
| Concept | Formula |
|---|---|
| GDP at market price (GDPmp) | Value of final goods and services produced within the domestic territory |
| GNP at market price (GNPmp) | GDPmp + NFIA |
| NDP at market price (NDPmp) | GDPmp − depreciation |
| NNP at market price (NNPmp) | GNPmp − depreciation |
| GDP at factor cost (GDPfc) | GDPmp − net indirect taxes |
| NNP at factor cost (NNPfc) = National Income | NNPmp − net indirect taxes |
| Net indirect taxes (NIT) | Indirect taxes − subsidies |
| NFIA | Factor income earned by residents abroad − factor income earned by non-residents in the country |
| Per capita income | National income ÷ population |
Depreciation is also called consumption of fixed capital (CFC).
Three Switches Trick for National Income
| Switch | From → To | What to do |
|---|---|---|
| Location | Domestic → National | + NFIA |
| Wear and tear | Gross → Net | − Depreciation |
| Price basis | Market price → Factor cost | − Net indirect taxes |
Example. GDPmp = ₹500 crore, NFIA = −₹10 crore, depreciation = ₹40 crore, indirect taxes = ₹60 crore, subsidies = ₹15 crore.
- GNPmp = 500 − 10 = ₹490 crore
- NNPmp = 490 − 40 = ₹450 crore
- NIT = 60 − 15 = ₹45 crore
- National income (NNPfc) = 450 − 45 = ₹405 crore
India's NFIA is usually negative, because more factor income (interest, profits, dividends) flows out to foreign investors than flows in. So India's GNP is normally a little lower than its GDP.
GVA vs GDP: Basic Price, Factor Cost and Market Price
Since the 2011-12 series, India reports GVA at basic prices for sectors and GDP at market prices for the whole economy. The new 2022-23 series keeps this framework.
| Measure | Formula |
|---|---|
| GVA at basic prices | GVA at factor cost + production taxes − production subsidies |
| GDP at market prices | GVA at basic prices + product taxes − product subsidies |
- Production taxes are paid regardless of output (for example, land revenue, stamp duty, professional tax).
- Product taxes are paid per unit of product (for example, GST, excise duty, customs duty).
Exam line: GVA tells you the value added by each sector (agriculture, industry, services); GDP adds net product taxes to give the size of the whole economy.
Methods of Measuring National Income
| Method | What is added | Used for |
|---|---|---|
| Product (value added) method | Value of output − intermediate consumption in each sector | Main method in India for most sectors |
| Income method | Wages + rent + interest + profit + mixed income | Sectors where output is hard to value |
| Expenditure method | C + I + G + (X − M) | Demand-side view of GDP |
In the expenditure method, C is private final consumption, I is gross capital formation, G is government final consumption, and X − M is net exports. India uses a combination of methods, mainly production and income, with expenditure estimates as a cross-check.
Avoid double counting: only final goods are counted. Intermediate goods (steel used in a car), second-hand sales, transfer payments (pensions, scholarships) and purely financial transactions (buying shares) are not part of GDP. The broker's commission on a share sale is counted, because it is a service.
What Is Included and Excluded in GDP
| Included in GDP | Not included in GDP |
|---|---|
| Final goods and services produced in the year | Intermediate goods used up in production |
| Services such as banking, transport, health | Second-hand goods sold again |
| Imputed rent of owner-occupied houses | Transfer payments (pensions, scholarships, gifts) |
| Production for self-consumption (farm output kept by farmers) | Purely financial deals (buying shares or bonds) |
| Government services (valued at cost) | Illegal activities and unpaid household work |
| Brokerage and commission on asset sales | Capital gains on old assets |
Exam tip: Questions often list four items and ask which one is not counted. Transfer payments and second-hand sales are the usual answers.
Nominal GDP vs Real GDP and the GDP Deflator
| Term | Meaning |
|---|---|
| Nominal GDP | GDP at current prices |
| Real GDP | GDP at constant prices of the base year |
| GDP deflator | (Nominal GDP ÷ Real GDP) × 100 |
| Real growth rate | Growth in real GDP over the previous year |
The GDP deflator covers all goods and services produced, so it is a broader inflation measure than the CPI. For more on price indices, read inflation and its types.
India's New GDP Base Year 2022-23 (2026 Facts)
| Fact | Detail |
|---|---|
| Old base year | 2011-12 |
| New base year | 2022-23 |
| New series released | 27 February 2026 by MoSPI |
| Recommended by | Advisory Committee on National Accounts Statistics (ACNAS), chaired by Prof. B. N. Goldar |
| Why 2022-23 | 2017-18 had the GST change; 2019-20 and 2020-21 were hit by COVID-19; 2021-22 had a base-effect jump |
| New data used | PLFS, HCES 2022-23, ASUSE, GST, PFMS and other administrative data |
| Later update | Revised on 31 August 2026 with the new PPI and IIP series |
| Back series | Expected by December 2026 (MoSPI FAQ) |
| Other indices rebased | CPI to base year 2024 (released 12 February 2026); IIP to 2022-23 |
Sources: PIB release PRID 2233518 (27 February 2026), MoSPI FAQ on the new GDP series (26 February 2026), MoSPI press notes of 31 August and 21 September 2026, PIB release PRID 2226269 (11 February 2026).
Who Calculates National Income in India?
- National Statistics Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI) releases GDP and GVA estimates. NSO was formed in 2019 by merging the Central Statistics Office (CSO) and the National Sample Survey Office (NSSO).
- The first estimate of India's national income was made by Dadabhai Naoroji (1867-68), described in Poverty and Un-British Rule in India.
- The first scientific estimate was by Dr V. K. R. V. Rao (1931-32).
- The National Income Committee (1949) was chaired by P. C. Mahalanobis.
- GDP release calendar: quarterly estimates about two months after each quarter, plus advance, provisional and revised annual estimates.
Common Mistakes in National Income Questions
| Mistake | Fix |
|---|---|
| Adding NFIA to get NDP | NFIA changes domestic → national, not gross → net |
| Treating subsidies as taxes | NIT = indirect taxes minus subsidies |
| Counting transfer payments | Pensions and scholarships are not part of GDP |
| Counting intermediate goods | Only final goods count |
| Calling NNPmp "national income" | National income = NNP at factor cost |
| Thinking India's base year is still 2011-12 | It is 2022-23 since February 2026 |
National Income MCQs (with Answers)
1. National income is defined as: NNP at factor cost.
2. GNP − depreciation = ? NNP.
3. GDP + net factor income from abroad = ? GNP.
4. Which body releases GDP estimates in India? National Statistics Office (NSO), MoSPI.
5. What is the new base year of India's GDP series? 2022-23 (released 27 February 2026).
6. Net indirect taxes are equal to: Indirect taxes − subsidies.
7. Who made the first estimate of national income in India? Dadabhai Naoroji.
8. If GDPmp = ₹500 crore, NFIA = −₹10 crore, depreciation = ₹40 crore and NIT = ₹45 crore, what is national income? 500 − 10 − 40 − 45 = ₹405 crore.
9. Which formula gives GDP by the expenditure method? C + I + G + (X − M).
10. GDP deflator = ? (Nominal GDP ÷ Real GDP) × 100.
National Income Concepts FAQs
What is the difference between GDP and GNP?
GDP counts production within the country's borders, whoever produces it. GNP counts production by the country's residents, wherever they are, so GNP = GDP + net factor income from abroad.
What is national income?
National income is NNP at factor cost: GNP minus depreciation minus net indirect taxes. It is the total factor income earned by the country's residents in a year.
What is the difference between GVA and GDP?
GVA is the value added by producers in each sector. GDP at market prices = GVA at basic prices + product taxes − product subsidies.
What is India's GDP base year in 2026?
2022-23. MoSPI released the new series on 27 February 2026, replacing the 2011-12 base.
What are the three methods of measuring national income?
The product (value added) method, the income method and the expenditure method. India uses mainly the production and income methods.
Why is India's GNP lower than its GDP?
Because India's net factor income from abroad is usually negative: more income is paid to foreign investors and workers than Indians earn from abroad.
Practice Next
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