Writing & StyleStyle guide

Fiscal Year Formatting

A fiscal year is a reporting period that may differ from the calendar year, so formatting should identify the intended reporting period rather than assume a universal convention. Microsoft documentation recognizes several FY label patterns, while other institutional styles may use year spans.

Quick answer

Fiscal-year labels vary by organization. Forms such as “FY2025” and “FY25” are widely used in reporting systems, while some styles use a year span such as “2024–25 financial year.” Define the period and stay consistent.

Key details

Accepted Labelscurrent Microsoft technical documentation recognizes labels such as FY2025, FY25, FY 2025, and FY 25 in its time-intelligence context
Core Issuelabeling a fiscal reporting year clearly
Definitiona fiscal year is an accounting/reporting period that need not match the calendar year

Important caveats

Label Boundary

FY labels are common in reporting systems, but the exact label should match organizational convention and make the covered period unambiguous.

Span Boundary

Some styles label a cross-calendar financial year as a span such as 2024–25; this is a house/institutional convention rather than a universal label.

Sources and evidence

Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.

  1. Fiscal Year (FY) — 12 Month Accounting and Reporting Period (opens in a new tab)Corporate Finance Institute · Definition and reporting-period boundary for fiscal years
  2. Best practices and supported date formats for automatic time intelligence (opens in a new tab)Microsoft · Current Microsoft-supported FY and quarter label formats including FY25 and Q1–Q4
  3. Dates and time — Australian Government Style Manual (opens in a new tab)Australian Government Style Manual · Australian Government guidance for day–month–year dates, ordinal dates, decades, centuries, time zones, and en-dash spacing in date/time spans

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