The Assessment Year (AY) and Previous Year (PY) are two equally important terms used in tax* and financial planning, but they are used in entirely different contexts.

The financial year is the year in which you earn income, while the assessment year is the year in which you pay tax on this income.

Find out more about these two terms in the sections below.

What is a Previous Year?

The previous year starts on April 1 of one calendar year and concludes on March 31 of the next. The concept of a previous year is used for the purpose of taxation. When you file your taxes, you do so for the concerned previous year.

What is an Assessment Year?

The assessment year also begins on April 1 of one calendar year and terminates on March 31 of the next. However, it is essential to note that this is the year in which you file taxes for income earned in a previous year, and it starts after the previous year ends.

For example, the tax assessment year for the previous year 2021-22 will be 2022-23.

AY and FY for Recent Years

Below is a table of recent financial and assessment years to help you understand the two better:

Previous Year Assessment Year
2018-19 2019-20
2019-20 2020-21
2020-21 2021-22
2021-22 2022-23
2022-23 2023-24

Understanding the difference between the Assessment Year (AY) and the Previous Year (PY)

Below are some differences between the assessment year and the previous year:

  • The previous year comes first, and the assessment year follows. This is because you first earn the income and then pay tax on it
  • The previous year is when individuals or businesses earn income, profit from investment returns and incur losses or expenses. The assessment year is when individuals and companies pay taxes, file an income tax return and claim tax deductions. It is the year in which tax authorities evaluate their financial activities

Why does an Income Tax Return (ITR) form have AY?

The ITR form is unique for every assessment year. This is why it contains the assessment year to distinguish the year in which you are filing your taxes. Since tax laws and regulations can change from year to year, the ITR form is updated annually with the latest assessment year to reflect these changes.

Can I update my tax return after the Assessment Year is over?

Yes, you can update your tax return after the assessment year is over, but there is a time limit for doing so. The return can be filed within two years of the end of the assessment year. For example, if the assessment year is 2021-22, you can file an updated income tax return before March 31, 2024.

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