If you have ever opened a fiscal year calculator to figure out which quarter a date falls in, you already know India’s financial year doesn’t line up with the regular calendar. Instead of running January to December, India’s fiscal year runs from April 1 to March 31 — and that one difference trips up a lot of people when they’re filing taxes, planning quarterly GST returns, or closing out company accounts. Here’s how to work out the financial year, quarter, and assessment year for any date without second-guessing yourself.
What Is a Fiscal Year in India
India’s fiscal year (also called the financial year, or FY) starts on April 1 and ends on March 31 of the following calendar year. So FY 2026-27 runs from April 1, 2026 to March 31, 2027. This applies to individual income tax, GST filings, and most company financial statements. For the official definition and current filing timelines, the Income Tax Department of India is the authoritative source to check.
How a Fiscal Year Calculator Works
A fiscal year calculator takes any date you enter and tells you two things: which financial year it falls in, and which quarter of that year it belongs to. The logic is simple once you know the rule:
- If the date falls between April 1 and December 31, the FY is “this year to next year” (e.g., a date in October 2026 falls in FY 2026-27).
- If the date falls between January 1 and March 31, the FY is “last year to this year” (e.g., a date in February 2027 still falls in FY 2026-27).
Our Date Calculator can help you work out day counts and date differences alongside this, which is handy when you’re also tracking deadlines within a given fiscal year.
India’s Fiscal Year Quarters (Q1-Q4) Explained
Once you know the FY, a fiscal year calculator breaks it into four quarters:
- Q1: April 1 – June 30
- Q2: July 1 – September 30
- Q3: October 1 – December 31
- Q4: January 1 – March 31
These quarters matter for GST return filing, advance tax payment deadlines, and quarterly business reporting.
Fiscal Year vs Calendar Year vs Assessment Year
This is where most confusion happens. The calendar year is the regular January-to-December year. The fiscal year (FY) is April-to-March, as covered above. The assessment year (AY) is the year immediately after the fiscal year, in which you file and get assessed for the income earned during that FY. So income earned in FY 2026-27 is assessed in AY 2027-28. If you’re calculating your taxes, our Income Tax Calculator can help once you’ve confirmed the right assessment year.
Worked Example: Finding the Quarter for a Given Date
Say you need to classify November 15, 2026. Since it falls between April 1, 2026 and March 31, 2027, it belongs to FY 2026-27. Within that year, November falls between October 1 and December 31, so it’s in Q3 of FY 2026-27. Running the same date through a fiscal year calculator would return the identical result instantly, which is useful when you’re processing many dates at once, like a year’s worth of invoices.
Key Takeaways
- India’s fiscal year runs April 1 to March 31, not January to December.
- A fiscal year calculator maps any date to its FY and quarter (Q1-Q4) automatically.
- The assessment year is always one year after the fiscal year in which the income was earned.
- Use our Date Calculator for related date math, and browse more guides on the CheckMatter blog.
FAQ
Does every country use the same fiscal year as India?
No — the US federal fiscal year runs October to September, and many companies choose their own fiscal year start date. Always confirm which fiscal year convention applies before comparing figures across countries.
Why does the quarter matter for GST?
GST returns for many taxpayers are filed quarterly, so knowing which quarter a transaction date falls into — easily checked with a fiscal year calculator — determines which return period it belongs to.