Difference Between Financial Year (FY) and Assessment Year (AY)

When dealing with income tax in India, two terms come up very often — Financial Year (FY) and Assessment Year (AY). Many taxpayers find these confusing, but the difference is actually quite simple once you understand the flow of income and taxation.

Let’s break it down in an easy and practical way.

What is a Financial Year (FY)?

A Financial Year is the year in which you earn your income.

• It starts on 1st April and ends on 31st March
• All income you earn during this period — salary, business income, interest, rent, capital gains, etc. — belongs to this year

Example: Income earned between 1 April 2024 and 31 March 2025 falls in Financial Year 2024–25.

In simple terms: 👉 FY = Year of earning income

What is an Assessment Year (AY)?

An Assessment Year is the year following the Financial Year, in which the Income Tax Department assesses your income and taxes it.

• It is the year when:
  • You file your Income Tax Return (ITR)
  • The tax department verifies your income
  • Tax is paid, adjusted, or refunded

Example: Income earned in FY 2024–25 is assessed in AY 2025–26.

In simple terms: 👉 AY = Year of filing return and paying tax

Key Difference Between FY and AY

Simple Example to Understand

Suppose you earned income from your job or business between 1 April 2024 and 31 March 2025.

• Financial Year: 2024–25 (income earned)
• Assessment Year: 2025–26 (return filed and tax paid)

So, when you file your return in July 2025, you will select:

• Assessment Year: 2025–26

Why AY is Used in Income Tax Returns

Tax cannot be assessed until the year in which income is earned is completed. That’s why:

• First, income is earned during the Financial Year
• Then, it is reviewed, assessed, and taxed in the Assessment Year

This system ensures accurate calculation of total income and tax liability.

Common Mistake Taxpayers Make

Many taxpayers mistakenly select the Financial Year instead of the Assessment Year while filing their return. Always remember:

ITR is filed for the Assessment Year, not the Financial Year

Conclusion

To summarize:

• Financial Year (FY) → Year in which you earn income
• Assessment Year (AY) → Year in which that income is assessed and taxed

Understanding this difference helps avoid errors while filing returns and communicating with the tax department.

If you are unsure which AY applies to your income, a quick check of the earning period will always give you the answer.ITR Filing