License & Subscription Issues

Do Separate Microsoft 365 Email Addresses Need Two Licenses?

Huda Qurayshi Sep 28, 2026 869 views

Question details

The user needs to know if two separate people using different email addresses within the same Microsoft 365 organization need two distinct licenses.

Do Separate Microsoft 365 Email Addresses Need Two Licenses?

Product: Microsoft 365
Device & OS: not provided
Scenario: Managing licenses for multiple users with distinct email addresses under Business Standard or Business Basic subscriptions.
Observed behavior: To correctly assign and purchase the required number of Microsoft 365 licenses for separate user accounts.

Before you start

Determine whether the second email address belongs to a completely separate person who needs to log in, or if it is simply a secondary receiving address for an existing user.

Solution 1Recommended

Purchase and Assign a Separate License for the Second User

If two different people need their own login credentials and separate inboxes, you must purchase a second Microsoft 365 license.

Microsoft 365 licenses are assigned on a per-user basis. One license cannot cover multiple individuals, even if they are under the same organization or custom domain.

Access the Admin Center

Purchase an additional license

Navigate to Billing > Purchase services on the left sidebar to buy a second license matching your current subscription (e.g., Business Standard).

Create and assign

Go to Users > Active users, click 'Add a user', and create the new email address while assigning the newly purchased license.

Purchase and Assign a Separate License for the Second User

Shared Mailbox Exception: If the second email is for generic inquiries (e.g., info@company.com) and doesn't require a dedicated user login, you can create a Shared Mailbox for free without purchasing a second license.

Solution 2

Create an Email Alias for a Single User

If the same person manages both email addresses, you do not need a second license. You can simply add an alias to the existing account.

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Frequently Asked Questions

Can two people share one Microsoft 365 license login?

No. Sharing user credentials violates Microsoft's terms of service. It also causes severe file syncing conflicts in OneDrive and compromises account security. Each individual user needs their own licensed account.

What is the difference between a user mailbox and a shared mailbox?

A user mailbox requires a paid license and has its own login credentials. A shared mailbox is free, does not have its own login, and must be accessed by users who already have their own licensed Microsoft 365 accounts.

How do I avoid paying for a license for a generic company email?

You can set up a Shared Mailbox in the Exchange Admin Center for addresses like 'sales@' or 'support@'. You then grant yourself (or other licensed users) read and send permissions to access it without buying an extra license.

Does adding an email alias cost extra?

No, you can add up to 400 email aliases to a single licensed user account for free. All emails sent to those aliases will be delivered directly to that user's main inbox.

Login & Account Issues