National Income: Definition & Formula, Methods of Computing

Q: What is the full form of GNP?

The full form of GNP is Gross National Product.

Q: What is GNP?

GNP is the value of final goods and services produced by the residents including the Net Factor Income from Abroad.

Updated on August 31, 2026Author:NEXT IAS Contributors

National Income (NI) is the total income value of all final goods and services produced in the country in a financial year by Indian residents, companies and including income from abroad. It measures the Gross Domestic Product (GDP) and Gross National Product (GNP), methods employed to compute it, and other related concepts. It also measures a nation's economic performance, calculated as Net National Product (NNP) at factor cost. It helps in assessing living standards and policy planning.

The first person to calculate India's national income was Dada Bhai Naoroji, the 'Grand Old Man of India'. Recently, in February 2026, the Ministry of Statistics (MoSPI) officially shifted the base year for National Income from 2011–12 to 2022–23. The national income can be measured in 3 ways: the Income Method, the Expenditure Method and the Product (Value Added) Method.

National Income Definition & Formula

The National Income meaning is the measure of the income generated by the residents of a country from all economic activities in a year. The national income is represented by the Net National Income or NNI. It also corresponds to NNP at factor cost.

The National Income can be calculated using the formula below.

GNI = GDP + NPI from ROW

NNI = GNI - CFC

NNI= GDP + NPI from ROW - CFC

S.No.	Variable	Full form	Meaning
1	GDP	Gross Domestic Product	Value of final goods and services produced within the economic territory of India.
2	GNI	Gross National Income	GDP plus net primary income earned by Indian residents from abroad.
3	NNI	Net National Income	GNI after deducting depreciation.
4	NPI from ROW	Net Primary Income from Rest of the World	Primary income received by Indian residents from abroad minus primary income paid to non-residents.
5	CFC	Consumption of Fixed Capital	Depreciation is the estimated reduction in the value of buildings, machinery, equipment, and other fixed assets due to wear and tear.
6	GVA	Gross Value Added	Output minus intermediate consumption. It measures value added by producers.
7	Net taxes on products	Product taxes minus product subsidies	Added to aggregate GVA at basic prices to obtain GDP.

Methods of Computing National Income

The National Income is the Net National Product at Factor Cost. It represents the total monetary value of all final goods and services produced by a nation within a financial year. There are 3 primary methods to calculate the National Income and these methods yield the exact same total output value when accurately calculated.

Production (Value Added) = Total Income Generated = Total Final Expenditure

The 3 primary methods to calculate the national income are discussed in detail below.

Product or Value Added Method

Under the product and value added method, the economy is divided into sectors such as agriculture, manufacturing, construction, and services. The intermediate goods are deducted from the total output of each sector to obtain the Gross Value Added or GVA.

NI = GDP at MP + Depreciation + NFIA - Indirect Taxes

Where,

GDP at MP is Gross Domestic Product at Market Price
NFIA is the Net Factor Income from Abroad

It is to be noted that only the final output or value added is to be counted otherwise the counting of items such as wheat, flour, and bread individually would result in the double counting.

Income Method

The Income Method is calculated by totalling all income earned by factors of production.

NI = NNP at FC + NFIA

Where,

NNP at FC is Net National Income at Factor Cost
NFIA is the Net Factor Income from Abroad

To calculate the National Income, we need to add the net primary income from abroad to GDP to get GNI, then deduct depreciation to get NNI.

Expenditure Method

The expenditure method adds all the final expenditures.

NI = GDP at MP + NFIA − Depreciation − Net Indirect Taxes

Where GDP = C+ I + G + (X-M)

C is the household consumption
I is the Investment in fixed assets
G is government expenditure
(X-M) is the Net exports (Exports minus imports)

Difference between National Income and GDP in India

S.No.	Basis	National Income (NI)	Gross Domestic Product (GDP)
1	Meaning	It is the total factor income earned by Indian residents from current production.	It is the monetary value of final goods and services produced within Indian territory.
2	Standard measure	NNP at Factor Cost (FC)	GDP at Market Prices (MP)
3	Basis of measurement	It is based on the Residence or Nationality concept and focuses on normal residents whether they earn within India or abroad.	It is based on the concept of Territory and focuses on production inside India whether by residents or non-residents.
4	Income from abroad	It includes income received by Indian residents from abroad and excludes income paid to non-residents.	It does not separately adjust for overseas factor income and counts only the production within domestic territory.
5	Net Factor Income from Abroad (NFIA)	Included	Not included
6	Depreciation	It is excluded because National Income is a net measure.	It is included because GDP is a gross measure.
7	Indirect taxes and subsidies	It is measured at factor cost and indirect taxes are excluded and subsidies are included.	It is measured at market prices and includes indirect taxes and reflects subsidies through market valuation.
8	Formula relationship	NI=GDPMP+NFIA−Depreciation−Net Indirect Taxes	GDPMP=C+I+G+(X−M)
9	Example	It includes the salary or profit earned by an Indian resident from a business abroad.	It includes the output produced by a foreign company's unit located in India.
10	Use	It Indicates the income accruing to residents and supports analysis of residents' earning capacity.	It indicates the size and growth of India's domestic economy and is widely used for the measurement of economic growth.

FAQs on National Income

What is National Income?

It refers to the aggregate value of all the final goods and services produced in a country in a particular period of time (usually one financial year).

How to calculate National Income?

The National Income is calculated by adding the factor incomes of residents or by deducting depreciation from Gross National Income (GNI) using production, income or expenditure methods.