Fiscal Year by Country

What Is a Fiscal Year?

A fiscal year (FY) is the 12-month period a government or business uses for accounting, budgeting, and tax reporting. It does not have to match the calendar year — and in many of the world's largest economies, it deliberately does not. The United States federal government runs October to September, India and Japan run April to March, and Australia runs July to June. When someone says 'FY26' or 'FY2025-26,' they are naming one of these offset years, and which twelve months that means depends entirely on the country.

Why offset at all? Mostly history and practicality. Britain's tax year starts on 6 April because of the 1752 calendar reform: when England skipped 11 days switching from the Julian to the Gregorian calendar, the Treasury refused to lose 11 days of tax revenue and moved the traditional 25 March year-end to 5 April, then to 6 April for leap years. India inherited the April–March year from British administration. The US federal October start dates to 1974, when Congress wanted more time to pass the budget after the fiscal year began. Australia's July start aligns with the southern-hemisphere agricultural cycle. Every odd date has a story.

Fiscal Years Around the World

This tool covers 40+ countries with their fiscal year starts, so you can stop guessing whether 'Q3 FY26' means July or January — it depends on whose FY you mean.

Quarters: Why Q1 Is Not Always January

A fiscal year's four quarters follow its start date, not the calendar. India's Q1 is April–June; the US federal Q1 is October–December; Australia's Q1 is July–September. This is the source of endless confusion in earnings season: when an American company reports 'Q1 FY26,' it means Oct–Dec 2025, while an Indian company reporting 'Q1 FY26' means Apr–Jun 2025 — the same label, different half of the year. The quarter-boundary calculator in this tool lays out all four quarters for any country and date, so you always know exactly which months a label covers.

Businesses add another wrinkle: companies can choose their own fiscal year-end regardless of their country's government year. Retailers often end in January or February (after the holiday season, when inventory is lowest — hence Walmart's January year-end), while most listed companies simply use December. Always check whose fiscal year a label refers to: the government's, or the company's.

FY Labels Decoded: FY26 vs FY2025-26 vs FY25/26

The same year gets written half a dozen ways, and the conventions differ by country:

• FY26 / FY'26 — common in the US and UK; usually names the year in which the fiscal year ends (US FY26 ends Sep 2026). But Indian usage often names the starting year (FY26 = Apr 2025–Mar 2026 in casual speech, FY2025-26 formally).
• FY2025-26 / FY25-26 — the unambiguous Indian format: start year–end year.
• FY2025/26 — UK corporate style.
• FY2026 — Australian government style (names the ending year).

The label converter in this tool translates between these formats for a chosen country, removing the ambiguity that causes real mistakes in contracts, financial models, and journalism. When precision matters — and with money it always does — write the full range: 'FY2025-26 (Apr 2025–Mar 2026).'

Tax Deadlines Worth Knowing

Fiscal year-ends drive tax calendars. A few landmarks (always confirm current-year dates with the local authority — deadlines move):

• India: FY ends 31 Mar; individual income-tax returns typically due 31 Jul; advance tax paid in quarterly instalments (Jun, Sep, Dec, Mar).
• US (federal): FY ends 30 Sep (government); individual tax year is calendar — returns due mid-April. Do not confuse the two.
• UK: tax year ends 5 Apr; Self Assessment online deadline 31 Jan following.
• Australia: FY ends 30 Jun; individual returns due 31 Oct (later via tax agents).
• Japan: FY ends 31 Mar; corporate filings due within 2 months of year-end.

The pattern: deadlines cluster 1–4 months after year-end. The countdown in this tool shows days remaining to the fiscal year-end for your country — useful for planning filings, budgets, and the annual scramble.

Why Governments Do Not All Use January

The calendar year is the global default (most of the EU, China, and Latin America use it), but offsets persist for real reasons. Agricultural cycles explain July starts in Australia and parts of South Asia — budgets are set after the harvest, when revenue is known. Legislative calendars explain the US October start — Congress needed the summer to finish budget negotiations. Colonial inheritance explains April starts across the former British empire. And seasonal business logic explains company choices: retailers avoid December year-ends because counting inventory during the holiday rush is madness. The diversity looks chaotic, but each date optimizes for something.

Working Across Fiscal Years: Practical Tips

Financial modelling

When a model mixes companies with different year-ends (say, a US retailer on a January year-end and a supplier on December), align everything to calendar quarters before comparing growth rates — otherwise you are comparing different months. State the mapping explicitly in the model notes.

Contracts and SLAs

'Delivery in Q2 FY26' is ambiguous until the fiscal calendar is defined in the contract. Define it once in the definitions section ('Fiscal Year means 1 April–31 March') and the ambiguity disappears.

Data analysis

Time-series joins across countries need a fiscal-calendar dimension table mapping each date to its FY and quarter per country. Build it once, reuse it forever — this tool's quarter output is exactly that mapping for a single date.

Job hunting and earnings

Companies hire and report on fiscal calendars. Knowing that a company's Q4 is your Q1 explains why their 'year-end push' lands in your February — and why their recruiters go quiet in what looks like mid-year to you.

Fun Facts From the Fiscal Calendar

• The UK's 6 April tax-year start is a fossil of the 1752 calendar reform — the oddest date in global finance has a purely astronomical origin.
• Nepal's fiscal year follows the Bikram Sambat calendar, starting mid-July — one of the few fiscal years not anchored to the Gregorian calendar.
• The US federal government has started its fiscal year in January, July, and October at different points in history.
• Ethiopia's fiscal year starts on 8 July (roughly), following the Ethiopian calendar — and the country is about seven years 'behind' in year numbering.
• Some companies use 52/53-week fiscal years (ending on the nearest Saturday) so every quarter has the same number of weekends — common in US retail.

How This Tool Computes It

The core is a lookup: each country maps to its fiscal-year start as month-day (fiscalStart('IN') → '04-01', 'US' → '10-01', 'UK' → '04-06'). Given a date, the tool finds the fiscal year it falls in: if the date is on or after the start day in its calendar year, the FY starts that year; otherwise it started the previous year. Quarters are the start date plus 0, 3, 6, and 9 months. The label converter formats the resulting year range in each national convention, and the countdown is simple date arithmetic to the next year-end. Deterministic, transparent, and easy to verify against official sources.

Fiscal Year vs Calendar Year in Data and Reporting

Analysts live at the intersection of fiscal calendars: revenue is reported in fiscal quarters, web analytics in calendar months, and payroll in whatever the HR system uses. Joining these datasets without a fiscal-calendar mapping produces the classic off-by-quarter error — growth that looks negative only because January's data landed in different quarters on each side of the join. The fix is a calendar dimension table with one row per date and columns for each fiscal convention you touch (FY start, FY label, fiscal quarter). Build it once from authoritative definitions — this tool's per-country lookup is the seed — and every report, dashboard, and model inherits consistent period logic. It is unglamorous work that prevents expensive mistakes.