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Workplace flu programs: the ROI calculation HR teams actually need

A 30-minute clinic that costs about a coffee per staff member often saves multiple days of lost productivity. Here is how to model it for your team.

31 March 2026 4 min read·Immunisation Hub clinical team
Team meeting in a workplace setting
Photo by Mimi Thian on Unsplash

Photo by Mimi Thian on Unsplash.

Most HR teams instinctively know that workplace flu clinics “pay for themselves.” The harder part is explaining the math to a CFO. This post lays out a simple framework that should hold up in a budget meeting.

The cost side

A typical workplace flu program costs in the range of $25–$45 per dose depending on volume, location, after-hours requirements, and whether the provider runs consent and reporting end-to-end. Larger clinics tend to be cheaper per dose.

The savings side

The standard back-of-envelope inputs are:

  • Average lost workdays per influenza-positive case: 3–5 days.
  • Average influenza incidence in unvaccinated adults: roughly 10–20% per season.
  • Vaccine effectiveness against medically attended influenza in working-age adults: 40–60% in a well-matched season.
  • Average fully-loaded daily employee cost (salary + on-costs): often $300–$700 for a typical office role.

A worked example

Take a workforce of 100 people, an unvaccinated season expects ~15 cases × 4 days × $400 ≈ $24,000 of lost productivity. Vaccinating reduces case counts by roughly 50%, saving ~$12,000. A clinic for 100 people at $35/dose costs $3,500. Net saving in this scenario: ~$8,500, plus the soft benefits (less spread to family, less anxiety, better presenteeism).

The intangibles

Productivity isn’t the whole story. Workforces with on-site clinics report higher engagement around health and wellbeing programs generally, an easier way to start that conversation than a poster in the kitchen.

For setup details, see our workplace clinic planning guide.

General information only. This article is educational and is not a substitute for personal medical advice. Your immuniser will confirm eligibility and contraindications on the day.

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