Hi @Julie Holt,
Thank you for posting your question in the Microsoft Q&A forum. Based on my research, some work or business licenses don’t support purchasing additional storage as a standalone add‑on. In those situations, the typical and recommended path to gain more mailbox or OneDrive storage is to upgrade the existing license, as higher-tier plans include increased storage by default.
That said, any licensing changes or upgrades do require administrator access. Because of this, the first and most important step is to clearly understand how your Microsoft 365 tenant is set up and what role you currently have within it, especially since you mentioned being the business owner.
To help me better understand your situation and guide you in the right direction, could you please share a bit more information on the points below?
- Do you happen to know which Microsoft 365 license your work account is currently using?
- Do you have access to the Microsoft 365 admin center at https://admin.microsoft.com with any account?
- Have you ever worked with an IT partner, consultant, or reseller who may have been set up as the Global Administrator for your Microsoft 365 environment?
If you’re unsure who the administrator is, Microsoft provides a helpful article that walks through how to identify your Microsoft 365 admin: How do I find my Microsoft 365 admin? - Microsoft Support
Whenever you have a moment, please feel free to reply with the details above by leaving a comment under this post. Your answers will help me understand your setup more clearly and ensure the guidance provided is accurate and relevant to your situation.
Thank you again for reaching out. I look forward to hearing from you and assisting further.
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