Microsoft 365 for Small Business: Which Plan to Pick (Basic vs Standard vs Premium).

Quick Answer: Pick the plan by what you must protect. Business Basic fits teams that work mostly in a browser. Business Standard is the usual choice for office staff who want the full desktop apps. Business Premium adds device management and advanced security, and it is the one we recommend for any business that handles client, financial or patient data. Per Microsoft's documentation (read 2026-11-01), Premium includes Microsoft Intune Plan 1, Microsoft Defender for Business and Microsoft Entra ID P1 (which enables Conditional Access). We have not copied plan prices onto this page; check the live price on Microsoft's site. We set up and manage Microsoft 365 through our managed IT services in Houston.

If you searched for "Microsoft 365 for small business" or "Office 365 for small business," you are looking at the same family of products. Microsoft renamed its Office 365 business plans to Microsoft 365, and the choice most owners face is Basic, Standard or Premium. This guide helps you choose, and covers the setup mistakes that cause problems months later. We set up and run Microsoft 365 for clients as part of our managed IT services in Houston.

A note on prices

Microsoft publishes plan prices on its own site, per user per month. Prices, billing terms and bundles change, so we link you to the source instead of copying a number that may be out of date by the time you read this:

• Compare all Microsoft 365 business plans (Microsoft)
• Microsoft 365 Business Premium (Microsoft)

When you look at the price, check three things: whether it is billed annually or monthly, whether it is per user, and whether it includes the desktop apps. Those three details decide most of the difference between plans on paper.

What is verified about each plan

The facts below come from Microsoft's own documentation, read on 2026-11-01. We have kept to what we could confirm.

• Business Premium is built for up to 300 users. Microsoft describes it as designed for small and medium-sized businesses of up to 300 users (Microsoft Learn).
• Business Premium includes Intune. Microsoft's documentation says Business Premium "includes Microsoft Intune Plan 1," a device management solution to enroll, monitor and manage devices (Microsoft Learn).
• Business Premium includes Defender for Business. Microsoft states that Premium includes it (Microsoft Learn). Defender for Business is also available as a standalone product for eligible organisations with up to 300 users, such as those on Business Basic or Business Standard, so Premium is not the only route to it.
• Business Premium includes Conditional Access, through Entra ID P1. Microsoft lists "Microsoft 365 Business Premium (Microsoft Entra ID P1)" as a licence that allows Conditional Access policies (Microsoft Learn).
• Every tenant gets a baseline. Security defaults, which require multi-factor authentication, are available in all Microsoft 365 organisations through Microsoft Entra ID Free, and tenants created after October 2019 have them on by default (same page).

For the exact app lists, mailbox sizes and storage allowances per plan, use Microsoft's compare page above. We would rather send you there than risk handing you a stale figure.

Which plan for which business

The right plan is the cheapest one that covers what you actually have to protect and what people actually do all day. Use this table as a starting point.

The rule we use: if a stolen laptop, a phished password or a leaked mailbox would cost you a client, a licence or a lawsuit, move to Premium. If it would be annoying but survivable, Basic or Standard plus a good backup and training will do.

Why Business Premium matters for security

A stolen password, an unmanaged laptop and a phishing link are three common ways into a small business. Business Premium goes at those three routes directly.

Multi-factor authentication and Conditional Access. Conditional Access lets you set rules such as "require MFA when signing in from outside the country," "block sign-in from unknown platforms," or "only allow access from a compliant device." Microsoft's documentation confirms the licence behind this is Entra ID P1, which Business Premium includes. Security defaults give you a baseline of MFA on every plan; Conditional Access gives you control over the rules.

Device management with Intune. With Intune Plan 1, you can enroll company laptops and phones, require disk encryption and a screen lock, push updates and wipe a lost device. Microsoft's documentation also describes app protection for personal devices, where you control the company data in Outlook and Teams without managing the whole phone.

Endpoint protection with Defender for Business. This provides endpoint protection with detection and response capabilities, built for businesses up to 300 users, with automated investigation and remediation, according to Microsoft's feature table. It is useful, but it does not mean someone is watching alerts at 3 a.m. For that, you need a person or a service. Our guides on EDR and MDR explain the difference between having the tool and having someone act on it.

The honest caveat. A licence is not a configuration. Business Premium contains the controls, but nothing protects you until someone turns them on, tests them and keeps them current. Many businesses buy Premium and run it at defaults. This is the most common gap we see, and it is the reason to have an IT provider configure the tenant rather than click through the setup alone. Our ransomware protection guide lists the settings that matter most.

Migration and setup gotchas

These are the mistakes that cost the most time. Most are cheap to avoid at the start and expensive to fix after.

1. Domain and DNS

Moving email to Microsoft 365 means changing your domain's DNS records: the MX record that routes mail, plus records for sender authentication. Microsoft's guided setup walks you through adding your domain and connecting it (Microsoft Learn), and its documentation covers changing nameservers at any registrar.

Common problems:

• You do not control the domain. The registrar login belongs to a former employee, a web designer or a previous IT vendor. Find it before you plan the cutover.
• Old records stay in place. A leftover mail record sends some messages to the old system.
• Missing authentication records. Without correct SPF, DKIM and DMARC records, your mail can land in spam or be spoofed.
• A cutover during business hours. Schedule it for a quiet window and lower the DNS record's time to live a day or two ahead.

2. Multi-factor authentication

Turn it on for everyone, including admins and the owner, on day one. Do not carve out exceptions for "executives who find it annoying." So that a misconfigured policy cannot lock you out of your own tenant, create at least two cloud-only emergency access accounts, not assigned to a person, protected with a FIDO2 security key and excluded from Conditional Access policies that could block sign-in; store the keys in separate secure places. This follows Microsoft's guidance on managing emergency access admin accounts, which recommends a passkey (FIDO2) or certificate-based sign-in for these accounts.

3. Admin accounts

• Give each administrator a named account. No shared "admin@" logins.
• Keep the number of Global Administrators small. Microsoft's own guidance says to use the roles with the fewest permissions.
• Make sure your company, not a vendor, owns the tenant. If an outside provider created it under their own billing account, find out how you would take it over.

4. Shared mailboxes and groups

A shared mailbox, like info@ or billing@, lets several people read and send from one address. Use shared mailboxes for role addresses instead of giving three people the password to one account. Confirm the current licensing rules on Microsoft's site before you rely on them. Decide who owns each one and who is allowed in.

5. Email migration

Moving from another host or an on-premises server takes planning. Decide what comes across (all mail, the last year, archives), how calendars and contacts move, and what happens to mail that arrives during the move. Test with one pilot user first.

6. Backup

This is the one most people miss. Microsoft runs the service, but recovering from deleted mail, overwritten files or a malicious change inside your own tenant is a different job, and the built-in retention settings are not the same as a backup you control and can restore from on demand. Our recommendation for every business tenant: add a separate backup of Exchange, OneDrive and SharePoint, and test a restore.

For the bigger picture of what to back up and how fast you need it back, see our business continuity plan template.

7. Licence hygiene

Assign licences to people who use them, remove them when people leave and review the list quarterly. Paying for seats nobody uses is money wasted every month. Our IT support scope includes licence management for this reason.

Setup checklist

Use this as a working list for your own rollout.

1. Confirm you control the domain registrar login.
2. Decide the plan per user, not one plan for everyone.
3. Create the tenant under your company name and billing.
4. Create two cloud-only emergency access admin accounts, protect them with FIDO2 security keys, and store the keys in separate secure places.
5. Add named admin accounts for the people who need them.
6. Turn on MFA for every user.
7. Add the domain and set the MX, SPF, DKIM and DMARC records.
8. Pilot the mail migration with one user.
9. Migrate the rest in a quiet window.
10. Create shared mailboxes for role addresses.
11. If on Premium: enroll devices in Intune, set compliance rules, create Conditional Access policies and turn on Defender for Business.
12. Set up a third-party backup and test one restore.
13. Train staff on phishing. See our security awareness training guide.
14. Review licences and sign-ins every quarter.

How we help

We set up and manage Microsoft 365 for Houston businesses as part of managed IT services. Email and Microsoft 365 support is part of our Essential IT tier, and our Managed IT tier adds the advanced security stack, backup and disaster recovery and quarterly strategy reviews. Our published prices are on our IT support page and broken down in our managed IT pricing guide.

If you are weighing plans, or you already have Microsoft 365 and are not sure it is configured properly, contact us. We can review your tenant and tell you what is turned on, what is not and what we would change first.

FAQ

Which Microsoft 365 plan is best for a small business?

Pick on what you need to protect and which apps your staff use. Business Basic suits teams that work mostly in a browser, Business Standard adds what most office staff expect, and Business Premium adds device management and advanced security, so it fits any business that handles client, financial or patient data. Check Microsoft's compare page for the current app and storage details.

Is Office 365 the same as Microsoft 365?

Microsoft renamed Office 365 plans for small business to Microsoft 365. People still search for Office 365 for small business, and the current business plans are the Microsoft 365 Business plans.

Does Business Premium include Intune and Defender?

Yes. According to Microsoft's documentation, Business Premium includes Microsoft Intune Plan 1, Microsoft Defender for Business and Microsoft Entra ID P1, which is the licence that enables Conditional Access.

Does Microsoft 365 back up my data?

Do not assume so. Microsoft keeps the service running, but recovering from deleted or overwritten data in your tenant is on you. We recommend a separate backup of mail, OneDrive and SharePoint, with a tested restore.

Can Houston IT Developers set up and manage Microsoft 365?

Yes. Email and Microsoft 365 support is included in our Essential IT tier at $99 per user per month, and Microsoft 365 and Google Workspace administration is part of our IT support scope.