Writing & StyleStyle guide

Academic Year Formatting

Academic-year labels often span two calendar years, but punctuation and year shortening are house-style choices. Merton Council, for example, specifies a slash with no spaces and the form 2025/26; other institutions may use a dash or both four-digit years.

Quick answer

Follow the institution’s house style for academic years; a form such as 2025/26 is valid in styles that explicitly prescribe a slash and shortened second year.

Key details

Core Issuean academic year commonly spans parts of two calendar years, while its label is style-specific
Phrase Roleacademic-period label formatting
Registereducation, institutional, and professional writing

Important caveats

House Style Boundary

Merton Council’s published style uses a slash without spaces, as in 2025/26.

Variation Boundary

That notation is a documented house style, not a universal English rule; institutions can prescribe different separators or year lengths.

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. Style guide (opens in a new tab)Merton Council · Official house-style example for academic-year notation using a slash, such as 2025/26

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