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McMaster MSAF, explained in plain words

What the McMaster Student Absence Form does, when you can use it, what it doesn't cover, and what happens to the missed work.

Updated 2026-09-09 · 4 min read

What it is

The MSAF is McMaster's self-report for a short absence. You submit it online, no doctor's note, and it covers work worth less than a set percentage of your grade for a limited number of days. Most course outlines then say what happens to the missed work: usually the weight moves to the final exam, or you get a short extension.

What it usually doesn't cover

  1. Final exams. Those go through your faculty office, not MSAF.
  2. Work above the weight limit stated in the outline. Big midterms often exceed it; the outline will say to contact the faculty instead.
  3. Using it more than once per term. Check the current limit in your outline or on the Registrar's site; it changes.

What actually happens to the mark

Every outline handles it differently, and this is the part students get wrong. Common versions: the weight moves to the final exam; a make-up is scheduled; the lowest of a set is dropped anyway so nothing changes. Read the “Missed work” section of each outline before you need it.

Where SyllaBuddy fits

Buddy pulls the missed-work rule from every outline into a “Rules that bite” section per course and answers “what happens if I miss the midterm” with your course's actual policy, not a generic one.

Questions

Does an MSAF need a doctor's note?

No, it's a self-report. That's the whole point of it. Longer absences and bigger assessments go through your faculty office with documentation.

Or let Buddy do it from the PDF.

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