Yes. The Australian Immunisation Handbook recommends [a flu shot every year](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=are%20recommended%20to%20receive%20influenza%20vaccine%20every%20year) for everyone aged 6 months and over.

- Flu viruses change, so the vaccine is reviewed every year. Last year's shot may not match this year's strains, and its protection fades.
- Protection can begin to wane after 3 to 4 months.
- Most adults need one dose a year.

Cost? See [Can I get a free flu shot?](/hc/flusmart/articles/can-i-get-a-free-flu-shot)

[Read the full answer](https://corporatecare.com.au/blog/four-reasons-get-flu-shot/)

Still stuck? Email flu@corporatecare.com.au.

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*Sources: Australian Immunisation Handbook, last updated 30/09/2026: [reviewed every year](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=The%20composition%20of%20influenza%20vaccines%20needs%20to%20be%20reviewed%20every%20year%20because%20of%20antigenic%20drift.), [wane after 3 to 4 months](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=protection%20after%20influenza%20vaccination%20may%20begin%20to%20wane%20after%203), [one dose a year](https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu#:~:text=Most%20people%20should%20receive%201%20dose%20of%20influenza%20vaccine%20each%20year).*