FYs / KPIs / OKRs (plurals) / FY's / KPI's / OKR's (possessives)
Different formsAdd s without an apostrophe to make an abbreviation plural. Use apostrophe-s only for a singular possessive, and an apostrophe after s for a plural possessive, such as KPIs' owners.
FYs / KPIs / OKRs (plurals)
Use when
You mean more than one financial year, KPI or OKR.
Example
“The paper compares KPIs across three FYs.”
FY's / KPI's / OKR's (possessives)
Use when
A singular abbreviation possesses or is associated with something; the apostrophe does not make it plural.
Example
“Each KPI's owner must confirm the KPI's definition.”
Quick check
KPI's when several KPIs are meant, FY's used as a plural, OKR's listed without possession
Usage note