Half-Year Abbreviations: H1 and H2
H1 and H2 can label the first and second halves of a year or fiscal year in business reporting. Microsoft documents H1 and H2 as two six-month fiscal periods and combines them with fiscal-year labels such as FY23 H1.
Use H1 for the first half and H2 for the second half when your organization uses that convention; identify the calendar or fiscal-year basis when it could be ambiguous.
Key details
Important caveats
Context Boundary
Half-year boundaries are organization/calendar dependent, so a label should make the fiscal or calendar context clear when needed.
Further guidance
Meaning
Microsoft explicitly defines H1 and H2 as the two six-month periods in its fiscal program context.
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.
- Incentives Co-op and Claims Overview (opens in a new tab)Microsoft Learn · Documented H1/H2 notation for the first and second six-month periods of a fiscal year