Five Guys celebrates 40th birthday with rare buy-one-get-one deal for four days

Does Five Guys get five separate birthday wishes? Five Guys celebrated its 40th birthday with a rare buy-one-get-one offer in February, however, the response was bigger than expected, so  the burger chain is offering another great deal for four days for its loyal fans.

From March 9 to 12, 2026, Five Guys is again offering a buy-one-get-one FREE burger at participating locations — in celebration of its milestone 40th birthday for a second time.

The offer is only available via Five Guys’ site or app — not in-restaurant.

Check Five Guys on Instagram or Facebook for any new announcements.

Find locations nationwide by state here.

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More food deals:

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• Five Guys celebrates 40th birthday with rare buy-one-get-one deal for four days
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This deal is from Living on the Cheap, our sister site.