Assessment Year is the 12-month period starting on April 1 and ending on March 31 of the next calendar year, during which the income earned in the previous financial year is assessed, taxed. And filed with the Income Tax Department of India. It's the year in which taxpayers report, calculate.
Category
Taxation period
Used for
Filing income tax returns
Common confusion
Often confused with Financial Year
Also called
AY
Often discussed with
ITR Filing for Salaried Individual, Online Income Tax Return Filing

Assessment Year is key in India’s tax system. It is a 12-month period. During this time, income is checked and taxed.
Related glossary terms: ITR, Return Filing Due Date, Income Tax Act 1961.
The Assessment Year starts on April 1. It ends on March 31 of the next year. For example, income earned from April 1, 2023, to March 31, 2024, is called Financial Year 2023-24.
The Assessment Year for that income is 2024-25. Taxes are not paid in the same year you earn money. You pay them in the next Assessment Year.
This gives people and businesses time. They can gather papers, figure taxes. And file returns right.
The Assessment Year links to the Financial Year. The Financial Year is when you earn money. The Assessment Year is when that money is taxed.
For instance, money earned from April 1, 2022, to March 31, 2023, is Financial Year 2022-23. It is taxed in Assessment Year 2023-24.
That Assessment Year runs from April 1, 2023, to March 31, 2024. Taxpayers must file tax returns (ITR) then. They must use the right Assessment Year.
The tax department gives forms like ITR-1 and ITR-2. Each form shows the Assessment Year. Filing under the wrong year can cause fines or delays.

Using the right Assessment Year keeps you legal. It helps you avoid fines for late or wrong filings. The Assessment Year sets the tax rules.
It decides tax slabs, breaks. And deductions. These apply to money earned last year. Tax rates can change each year.
So filing under the right year makes sure taxes are right. The Assessment Year also matters for refunds and notices. The tax department uses it for refunds.
If they send a notice, it will list the Assessment Year. Filing under the wrong year can cause mix-ups. It can also cause delays or legal trouble.
Assessment Year is very important here:
For example, income earned in Financial Year 2023-24 is filed in Assessment Year 2024-25. Filing in the wrong year can cause fines. It can also cause wrong tax checks.
Financial Year is the period when income is earned. While Assessment Year is the period when that income is assessed and taxed.
Previous Year is another term for Financial Year, referring to the year when income is earned, whereas Assessment Year is the year of tax assessment.
Always confirm the Assessment Year before filing your return. A common mistake is selecting the wrong year, which can lead to penalties or delays in processing. The Assessment Year is always one year ahead of the Financial Year.
If Ramesh earned a salary from April 1, 2023, to March 31, 2024, that period is Financial Year 2023-24. He must file his income tax return in Assessment Year 2024-25, which runs from April 1, 2024, to March 31, 2025. Filing under Assessment Year 2023-24 would be incorrect and could lead to errors.
ITR is the Income Tax Return form that individuals, businesses. And other entities in India must file with the Income Tax Department to report their income, deductions, taxes paid. And tax liability for a financial year. ITR forms vary based on the type of taxpayer and income sources.
Return Filing Due Date is the last day by which taxpayers in India must submit their Income Tax Return (ITR) to the Income Tax Department without incurring penalties or late fees. This date varies based on the type of taxpayer, such as individuals, businesses.
Income Tax Act 1961 is the primary law in India that governs the levy, collection, administration. And enforcement of income tax. It defines taxable income, tax rates, exemptions, deductions. And procedures for filing returns, assessments. And appeals for individuals, businesses.
Income Tax Department is the government agency responsible for administering and enforcing income tax laws in India. It collects taxes from individuals and businesses, processes income tax returns, conducts audits. And ensures compliance with the Income Tax Act, 1961. The department operates under the Ministry of Finance and plays a key role in funding public services and national development.
ITRFiling.org.in
Contact ITRFiling.org.in for practical guidance on Assessment Year and related itr filing work in India.