Formula for tax base calculation
The tax base is calculated by subtracting allowable deductions and exemptions from the total income or asset value.
Formula: Tax Base = Total Income/Asset Value - Deductions - Exemptions
For example, if an individual has a total annual income of Rs. 12,00,000 and claims deductions of Rs. 2,00,000 and exemptions worth Rs. 1,00,000, the tax base becomes Rs. 9,00,000. This amount is then subjected to the applicable tax rate. Similarly, for assets like property, the market value minus any allowable exemptions forms the tax base.
What are the 3 tax bases?
Taxes are typically based on three primary economic factors: income, assets, and economic activity (such as sales or purchases). The IRS classifies tax systems into three main types:
- Progressive Tax: Higher-income individuals pay a larger percentage of their income in taxes compared to lower-income earners.
- Proportional Tax: Also known as a flat tax, this system applies the same tax rate to all income levels.
- Regressive Tax: Lower-income individuals end up paying a higher percentage of their income in taxes than higher earners.
In the U.S., the federal income tax is progressive. However, Social Security taxes and property taxes are considered regressive. Sales taxes are also regressive, as they apply the same rate to everyone, regardless of income level.
Features of tax base
- Easy to Calculate
The tax base is simple to work with. Individuals or businesses just need to add up their taxable income, assets, or transactions. This simplicity helps the government estimate tax collections and manage public spending efficiently.
- Reflects Taxable Income
Governments rely on official economic data to understand the total taxable income within the country. These estimates help in setting tax targets and planning the national budget.
- Broader Base Means More Revenue
Including more categories like GST, import duties, and excise in the tax base helps the government raise additional funds. This money can be used for building infrastructure, improving healthcare, and supporting welfare schemes.
- Promotes Accountability
A properly maintained tax base ensures transparency and accurate reporting. It also allows policymakers to assess how India’s tax system performs compared to other countries.
Limitations of Tax Base
While a strong tax base offers many benefits, there are certain challenges that can limit its effectiveness in generating revenue.
- Exclusion of the Informal Sector
A large part of India’s economy still functions outside the formal system. Many small businesses and unreported income sources remain untaxed, which reduces potential tax revenue and puts extra pressure on honest taxpayers.
- Heavy Dependence on Direct Taxes
Relying too much on income tax, without balancing it with indirect taxes like GST or excise duty, can narrow the tax base. A mix of tax types helps ensure consistent and sustainable revenue.
- Too Many Exemptions and Deductions
While tax breaks and incentives are important for encouraging growth in specific sectors, offering too many can shrink the taxable pool. This may hurt overall revenue, even if it supports certain industries or groups.