2025-2026 COVID-19 and Flu Vaccine Return Information
If you have COVID-19 vaccine doses or flu vaccine doses left over from this past season, now is the time to return them. To assist our members with returning their leftover COVID-19 and flu vaccine doses, we’ve listed instructions and resources for each manufacturer below. Returns do not need to be refrigerated. Please note that each manufacturer has a specific deadline. Once you have returned your vaccines, please allow 4-6 weeks for processing time.
Moderna COVID-19 Vaccine Return Information –
If the customer purchased Moderna COVID-19 vaccines for the 2025-2026 season through www.ModernaDirect.com, please click here for directions on obtaining a Return Authorization (RA) from Inmar. Once you receive the RA from Inmar, the customer is responsible for shipping the vaccine to Inmar. Moderna has two return windows. The first return window ends May 31, 2026. The second return window ends October 31, 2026. Credits will NOT be issued until after the close of each respective returns window.
If the customer purchased Moderna COVID-19 vaccines for the 2025-2026 season through a distributor, please contact the distributor for information on returning unused COVID-19 vaccines. Each distributor will have its own return policy and return deadlines.
Pfizer COVID-19 Vaccine Return Information –
If the customer purchased Pfizer COVID-19 vaccines for the 2025-2026 season, please click here for directions on returning Pfizer COVID-19 vaccines. All returns must be received prior to September 15, 2026.
CSL Seqirus Flu Vaccine Return Information –
Customers must complete the return requests by June 10, 2026, after which the product must be received by Inmar no later than June 28, 2026.
If the customer has a direct account with Inmar, they can log into their www.flu360.com account. On the right side of the screen, click on “Orders” then “Returns.” Please click here for CSL Seqirus Influenza Vaccine Returns FAQ and checklist.
If the customer does not have a direct account with Inmar, please click here to download the return form.
Sanofi Flu Vaccine Return Information –
Sanofi customers are eligible to return up to 15% of their shipped influenza reservation by presentation. Returns exceeding the allowable thresholds will receive a federal excise tax credit only. To get started, log in to www.VaccineShop.com/returns or select “Returns” from the navigation bar at the top of the screen. Refer to this Quick Guide from Sanofi for additional information by clicking here.
For additional assistance, you can also reference the many resources available, including Vaccine Shop’s Returns Help Center , which has many short instructional videos, such as: Help Me With My Return or What’s My Return Status Mean?
Please note all eligible influenza returns must be physically received by Inmar no later than July 31, 2026, otherwise credit will be given for federal excise tax only. We encourage you to send your return immediately upon expiration for timely processing.
If the customer has a direct account with Inmar, they can log into their www.flu360.com account. On the right side of the screen, click on “Orders” then “Returns.” Please click here for CSL Seqirus Influenza Vaccine Returns FAQ and checklist.
If you have any questions after reviewing the resources above, please email Amy Bullock at abullock@primarycarealliance.com or call her at (801) 369-3933.

