Every salaried professional or business owner encounters the term “financial year” when dealing with taxes, audits, or budgets. But do we all truly understand what it means — or how it differs from an assessment year?
This confusion often leads to misfiled tax returns, missed deadlines, or flawed financial planning. For example, many people assume the financial year is the same worldwide, but fiscal calendars vary across countries.
In this guide, we break down what a financial year means, its role in accounting and taxation, and why it’s essential for both individuals and businesses.
What is a Financial Year?
A financial year (also called a fiscal year) is a 12-month period used for accounting, tax assessment, and budgeting.
According to Merriam-Webster, it’s “a 12-month period used by governments and businesses for accounting purposes and budget planning.”
Cambridge Dictionary defines it as “the 12-month period used by a government or business for financial reporting and budgeting, not necessarily the same as the calendar year.”
In India, the financial year begins on April 1st and ends on March 31st of the following year.
Example: FY 2023–24 = April 1, 2023 to March 31, 2024.
Financial Year vs Assessment Year
What is an Assessment Year?
An assessment year is the year following the financial year in which income is evaluated and taxed.
Key Differences
| Feature | Financial Year | Assessment Year |
| Definition | Year in which income is earned | Year in which income is assessed |
| Time Period (India) | 1 April – 31 March | Next 1 April – 31 March |
| Purpose | Income generation | Tax assessment & filing |
| Example (FY 2025–26) | Earn income: Apr 2025–Mar 2026 | File return: Apr 2026–Mar 2027 |
Use in Taxation (India)
In India, tax returns are filed in the assessment year for the previous financial year’s income. This system is regulated by the Central Board of Direct Taxes (CBDT).
Purpose of the Financial Year
- Tax Calculation: Determines income earned and taxes payable.
- Budgeting: Used by governments and companies to allocate resources.
- Financial Reporting & Auditing: Year-end statements are prepared for transparency and compliance.
- Planning: Guides strategic decisions and resource deployment for the coming year.
How Financial Years Vary Across Countries
Different countries follow different fiscal calendars:
- India: April 1 – March 31
- USA: October 1 – September 30 (federal); companies may choose their own
- UK: April 6 – April 5 (individual tax); businesses may adopt April 1 – March 31
- Australia: July 1 – June 30
These differences affect tax rules, reporting timelines, and compliance obligations.
What is an Accounting Financial Year?
Accounting Year vs Financial Year
An accounting year is a 12-month period used by companies to track financial performance. It may or may not match the government-declared financial year.
Industry-Specific Variations
Retailers may end their accounting year after their peak season (e.g., January), even if the official fiscal year differs.
Relation to Calendar Year
The calendar year runs from January to December, but many entities prefer a different fiscal year for operational reasons.
Key Dates and Deadlines
- End of Financial Year (India): March 31
- Important Deadlines:
- Tax-saving investments: Before March 31
- ITR Filing: By July 31 (usually)
- Audit Reports: September or October, depending on turnover
- Year-End Closings:
- Finalizing books of accounts
- Stock verification
- Preparing audit documentation
Why It Matters for Businesses and Individuals
- Income Tax Filing: Accurate records enable timely return filing and avoid penalties.
- Budget Planning: Helps set spending and revenue goals.
- Strategic Growth: Enables better decision-making.
- Investments: Tax-saving investments must be made within the current financial year to claim deductions.
FAQs About the Financial Year
Q: What is the difference between financial year and assessment year?
The financial year is when income is earned; the assessment year is when it is reviewed and taxed.
Q: When does the financial year start in India?
It starts on April 1 and ends on March 31 of the next year.
Q: Can a company choose its own financial year?
Yes, companies may adopt a different accounting year based on regulatory approval and operational needs.
