The value of all the goods and services produced by a country in one year is called national income. It is the result of all economic activities in a given country during a specific year. To give a national’s annual economic activities monetary value, these outcomes are monetized. The government pays taxes, less subsidies and other statistical anomalies, to make up the national income. Gross Domestic Product (GDP) is used to calculate National Income. This is the total value of all final products and services produced by the country’s citizens, regardless of their origin (Brophy, et al. 2018, 2018). The gross domestic product of the United States is the total revenue that the nation’s citizens earn, whether it be in America or overseas. Depreciation (consumption of fixed capital) will reduce the National income below the GDP. Although it may not reflect all the income generated, personal income is the sum of the money received. This is the sum of all earnings a person has received from wages and investments over a given time (Landfeldt, et al. 2018, 2018). Personal income has a significant impact on consumption, and this in turn can influence economic growth or contraction. Personal benefit is the result of economic growth in any country. This increases its worth, which leads to its improvement. A person’s disposable income is their net daily spending. This is the income of an individual after tax. In order to have disposable income, income must include personal taxes. This is the most important indicator of an economy’s overall health. The household’s disposable income refers to the money that is available for expenditure during a given period. National Income uses the output, input, and income methods, while Personal Income, Disposable Income, and Disable Income use the income, output, and input methods, respectively. Disposable income also uses an income tax payment instrument. Individual income is determined by the type of economic activity (Brophy and colleagues, 2018). The taxes only impact disposable income while the national income does not. Income is taxable for individuals, but not national income or personal disposable income. National income can be determined by individual goals and economic activities. The Gross Domestic Product is the aggregate of all the public and private sector contributions to national income. After deducting national expenses, national income can be referred to as national income. Personal income can be earned in one industry. The importance of improving economic well-being is highlighted by national income, while personal disposable income focuses on individual spending and savings. Personal income is a more general idea. It consists of all the production profits, while national income is the sum of those earnings.