Last updated on: July 29, 2025
The financial year and assessment year are two key terms in taxation and accounting. The financial year (FY) refers to the 12-month period during which income is earned, commonly from April 1st to March 31st of the next year in India. For example, income earned between April 1, 2023, and March 31, 2024, falls under the financial year 2023–24. The assessment year (AY) follows immediately after the financial year and is when the income earned is evaluated and taxed by authorities. Using the same example, the assessment year for FY 2023–24 is 2024–25. Essentially, you earn income in the financial year and pay taxes on it in the corresponding assessment year.
When you are handling your business or personal finances in India, you will come to terms with such common terms as the financial year and the assessment year. Such concepts are confusing to most people, more so those who are beginners. The difference between the two and the synergy between the two is relevant to the compliance of the tax filing of income, business planning and investments in 2025.
This is a lengthy article that explains about financial year and assessment year, their implications on the amount of tax that a person has to pay, when the tax has to be reported and what is needed to stay on track to avoid penalty. We will help you to distinguish those periods by providing a great number of practical examples, tables and professional hints to make it more understandable.
A financial year (often shortened as FY) is the specific twelve-month period when your income and expenses are recorded for tax purposes by government authorities. In India the accounting year starts on 1 st April and finishes on 31 st march of the next year. In other words, the FY 2024 to 2025 runs between 1 April 2024 and 31 March 2025.
April to March selection is because of big business cycles and the farming patterns that govern the economy of India. This assists in scheduling of accounting and inventory business periods and reporting with governmental requirements comparisons.
The assessment year (AY) is the immediate next year after the financial year, in which you actually file your income tax return for the income earned in the previous financial year. For example, if your income was earned between 1 April 2024, and 31 March 2025 (FY 2024 to 25), you will file your tax return during Assessment Year 2025 to 26.
Assessment year is a very crucial period as it is during this period that the Income Tax Department scrutinizes or rather assesses your tax returns. The tax authorities verify, validate and process your claims of the previous year income.
Why does the financial year of India start in April and end in March?
This is an extension of the practice which goes back to the British times in line with the agricultural cycle and the trade practices of colonial times which are still regarded as rational in the collection of Indian revenues.
All the individuals on salary, freelancer, business, and companies must declare their total earnings, investment, and taxes in a well-defined financial year. That is, the salary you will receive during the April 2024 to March 2025 period falls under the FY 2024 to 25.
It is to be conserved:
This assists in the simple and fast filing of the income tax of the Assessment Year 2025 to 26.
The majority of the financial products come with a tax saving benefit in case of purchase or renewal of the product before the 31 st of March of the year. A missed deadline in this may imply that the deduction may be enjoyed in the following financial period.
Is it possible to show an income that I had not earned in that particular year?
No. Income can always be declared in the financial year when it was received.
That is in the assessment year 2025 to 26 that you declare and are assessed all your income, investments and TDS that you made in the FY 2024 to 25. For individual taxpayers, the last date to file the ITR (income tax return) is typically July 31, 2025, unless the government extends it.
Assessment year is explicitly referred to in online e-filing websites and tax return applications in India and you cannot afford to miss this in order to make a mistake. It is the most widespread error that a novice can make and this may result in the necessity to correct or refill.
Most online marketplaces allow you to compare tax-saving investment products (ELSS funds, life/health insurance, NPS) in one place, helping you choose wise investments in time for the current financial year.
Make sure that you use your details that correspond to the correct FY and AY and thus you can get your benefits without wasting time.
The evaluation Year 2025 26 | The Financial Year 2024 25 |
---|---|
From date 1 Apr 2024 | 1 Apr 2025 |
Purpose Period of earning of income and investment earnings | Period of assessment of the past year income and taxation |
Relevance TDS computation, salary receipts, investment planning | Submission of ITR, availing of refunds, scrutiny and assessment |
Reporting ITR Reporting ITR FY 2024-25 on all supporting documents | AY 2025-26 on filling up on portal |
It may be done up to 31 march 2025 | Tax saving may not be done after the previous year |
As long as you fail to file your return on time you will be in a position to:
Filing your ITR in the correct assessment year will also influence your chances to access fast loans in the bank or registering your business because most of the sites will perform automatic checks of the assessment years.
How many years after the year can I file my tax?
There is still a late filed return that you can file until 31 December of the assessment year, although at a penalty.
In 2024, when I was a freelancer, it was hard to track which of the invoices was in FY 2023-24 and 2024-25. I would stamp all the bills, receipts and credit at the bank with the year of FY when I was earning. By the time the tax season was approaching AY 2025-26, I could compare all the documents to my total declared income at a glance.
I created a calendar reminder two weeks before March 31 to survey all possible tax saving investments (PPF, ELSS, NPS), so I never missed a deduction window in my financial year. In the majority of online stores, you can compare products in the same place to make the quickest decision.
With proper segregation of expenses and receipts in terms of financial year and considering that my declaration is always to the next assessment year, even my CA could easily verify my records and file the same.
Chartered Accountants would prefer to have the electronic statements organized in FY. This reduces the mistake and saves you the time in your tax assessment process of yours in AY.
Do salaried workers need to be cognizant of FY and AY?
Yes, because salary is credited on the basis of financial year whereas the return is to be filed on the assessment year. In form 16, the FY has been provided and in ITR, the AY has been mentioned.
Among the issues which are common is forgetting the year to use in the tax portals or even at the bank when filling the fixed deposit interest forms. Such mistakes are easily avoided through being aware of your papers and technology or reminders.
The Income Tax Department sends out refunds, notices and these can only be dealt with on the basis of correct assessment year and therefore should be correct to be cleared at a faster rate.
Is there a possibility that AY and FY may be same calendar year?
No, financial year is always followed by assessment year.
Financial year is just another term of previous year. The realization of the income is in the previous/financial year and assessment is made in the subsequent assessment year.
The investment up to 31 March 2025 will fall in the FY 2024 to 25 and the returns can be claimed in the income tax returns to be filed in AY 2025 to 26.
Form 16 displays the financial year of income (when you earned the salary), whereas the ITR portal uses the assessment year (when you are being assessed for that income.)
This has the potential to lead to rejection or misjudgement. They can be rectified through filing amended returns but any lapse can be penalized.
You may file a belated or revised return for FY 2023-24 or AY 2024-25, but only till the deadline specified (usually December of assessment year).
To be aware, the income tax department portal should be visited regularly or one should visit online tax advisory market places and compare the possibilities and seek the help of experts in one place.
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Written by Prem Anand, a content writer with over 10+ years of experience in the Banking, Financial Services, and Insurance sectors.
Prem Anand is a seasoned content writer with over 10+ years of experience in the Banking, Financial Services, and Insurance sectors. He has a strong command of industry-specific language and compliance regulations. He specializes in writing insightful blog posts, detailed articles, and content that educates and engages the Indian audience.
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