Microsoft 365 E3 and E5 differ by $21 per user each month at Microsoft’s published 2026 U.S. prices. For a company with 1,000 licensed users, moving everyone from E3 to E5 adds $252,000 a year before discounts or contract terms change the number. That makes the license gap easy to calculate. The harder question is whether the extra $252 per user each year closes security gaps the company actually has.
The answer changed in 2026 because E3 gained security functions that older comparison pages still place above the E3 tier. Defender for Office 365 Plan 1 is now part of Microsoft 365 E3. Several Intune capabilities also moved into the package. E3 therefore provides a stronger starting point than it did a year earlier, while E5 remains deeper in identity risk, investigation, response, privileged access, and data security.
A fair Microsoft 365 E3 vs E5 comparison has to look beyond the license invoice. Companies also need to count security add-ons, existing third-party products, monitoring effort, investigation work, and the number of employees who genuinely require higher controls. In some environments E5 costs less than filling several E3 gaps separately. In others, staying on E3 for most users produces a lower bill without leaving an uncovered security need.
TL;DR
- Microsoft 365 E3 pricing is $39 per user/month at Microsoft’s published U.S. annual-commitment reference price after July 1, 2026. Microsoft 365 E5 pricing is $60, leaving a $21 monthly difference.
- Microsoft 365 E3 security now includes Defender for Office 365 Plan 1 in addition to Entra ID P1, Defender for Endpoint Plan 1, Intune capabilities, Windows security, and core Purview controls.
- Microsoft 365 E5 security goes further in identity risk, privileged access, XDR, investigation, response, SaaS security, and higher Purview functions.
- E3 plus the $12 Defender Suite reaches $51 per user/month. E3 plus the $12 Purview Suite also reaches $51.
- Adding both $12 suites to E3 produces a published total of $63. At that point, E5’s $60 list price is lower.
- A mixed model can make more sense than giving E5 to every employee. The correct split depends on which users need the extra controls and which gaps are already covered by other products.
What Changed in Microsoft 365 E3 and E5 in 2026?
The first change is price. Microsoft raised Microsoft 365 E3 from $36 to $39 per user/month and E5 from $57 to $60 effective July 1, 2026. The $21 difference therefore stayed the same. Microsoft’s 2026 Microsoft 365 pricing and packaging update also confirms that the no-Teams versions rose to $30.45 for E3 and $51.45 for E5, which leaves the same $21 gap. Contract prices can vary, so these figures work best as reference points rather than expected invoice totals.
The package itself changed at the same time. E3 gained Defender for Office 365 Plan 1 and more Intune rights. That matters because a security comparison written before July 2026 can overstate the distance between E3 and E5. Calance’s current Microsoft 365 E3 security baseline for 2026 maps the new entitlements and also points out a practical issue: receiving a license doesn’t mean the associated controls are configured or enforced. That distinction should come before any upgrade decision.
The 2026 additions that matter most to this comparison include:
- Defender for Office 365 Plan 1 in Microsoft 365 E3
- Intune Plan 2 additions through the E3 package
- Intune Remote Help
- Intune Advanced Analytics
- Additional Intune and security functions in the higher E5 tier
- Security Copilot availability within the current E5 package
These changes narrow some older gaps without removing the larger differences around security operations. E3 now has a stronger prevention layer. E5 still provides a deeper set of tools for detecting risky identities, investigating attacks across workloads, limiting privileged access, and handling sensitive information when standard Purview functions aren’t enough.
This is why Microsoft 365 E3 vs E5 should be reviewed against the current entitlement list before renewal. A company that upgraded several years ago to gain a specific feature may now find part of that requirement inside E3. Another company may discover that its current E3 setup still lacks controls needed for administrators or regulated data even after the new functions are counted.
What Does the $21 Price Gap Cost at Scale?
Microsoft 365 E3 pricing starts at $39 per user/month under Microsoft’s published U.S. annual-commitment reference price. Microsoft 365 E5 pricing is $60. The direct difference is $21 per employee each month, or $252 each year.
That number grows quickly when the upgrade is applied to the whole workforce.
| Licensed Users | Monthly E5 Premium | Annual E5 Premium |
| 100 | $2,100 | $25,200 |
| 500 | $10,500 | $126,000 |
| 1,000 | $21,000 | $252,000 |
| 2,500 | $52,500 | $630,000 |
| 5,000 | $105,000 | $1,260,000 |
Those figures explain why a feature-by-feature spreadsheet isn’t enough. A 5,000-user company has more than $1.2 million a year at stake if every user moves from E3 to E5. Security teams therefore need to show which controls justify that spend and which employees need them. Email security is a good example because the calculation changed during 2026. Microsoft’s current Defender for Office 365 service description confirms that Plan 1 is now included with Microsoft 365 E3, while Plan 2 supplies deeper investigation, automation, hunting, and attack-simulation functions. A company upgrading solely because it thought E3 lacked Safe Links or Safe Attachments would now be working from old licensing information.
Microsoft 365 E3 pricing also isn’t the final cost of an E3 security stack. A business may buy EDR, privileged-access software, email security, SaaS security, DLP, or monitoring from other vendors. Those products can make E3 more expensive than the $39 headline suggests, but they may also close gaps so well that replacing them with E5 makes little financial sense. The comparison therefore has 2 numbers to calculate. The first is the license difference between E3 and E5. The second is the cost of everything needed to make E3 meet the company’s actual security requirements.
What Microsoft 365 E3 Security Already Covers
Microsoft 365 E3 security has enough capability to support a serious enterprise baseline when the controls are configured and maintained. Calling E3 a basic productivity license misses identity, device, endpoint, email, and data functions already inside the package.
Identity starts with Microsoft Entra ID P1. Conditional Access can use factors such as user identity, application, location, device compliance, and authentication state to decide whether access should be granted. That gives administrators a way to require MFA, restrict unmanaged devices, or apply stronger access rules to sensitive applications.
Endpoint protection includes Defender for Endpoint Plan 1. Its capabilities include next-generation protection, attack-surface reduction rules, central management, and manual response actions. E3 users therefore have more than standard antivirus protection available, although the deeper endpoint investigation layer sits higher in the Defender stack.
Email protection became much stronger after July 2026. Defender for Office 365 Plan 1 adds controls such as:
- Safe Links
- Safe Attachments
- Anti-phishing protection
- Real-time detections
- Protection for supported SharePoint, OneDrive, and Teams content
That addition removes one of the clearest historical reasons to move an entire user population to E5. Plan 2 still matters for security teams that need automated investigation, hunting, attack simulation, and richer post-delivery analysis, but E3 can now block and inspect far more email threats on its own.
Device management has also moved forward. Intune connects device state with identity and access policy, which means a non-compliant endpoint can be restricted from company data instead of being treated like a trusted device. Calance’s Microsoft Intune services page shows how device enrollment, compliance rules, application access, endpoint policy, and Conditional Access work together in a Microsoft environment. That relationship matters because buying a higher license won’t fix devices that were never enrolled or policies that remain unassigned.
Core Purview controls add another layer. Depending on the workload and entitlement, E3 can support sensitivity labels, standard audit, standard eDiscovery, retention functions, and core DLP. Those controls can meet many day-to-day information-protection requirements without the complete Purview Suite.
Microsoft 365 E3 security therefore works best when the organization has already answered a few operational questions:
- Are Conditional Access policies active rather than left in report-only mode?
- Are eligible endpoints enrolled and receiving the required policies?
- Are Defender for Office 365 protections configured beyond defaults?
- Are attack-surface reduction rules actually enforced?
- Are DLP and sensitivity-label policies assigned to the right locations?
- Does someone review the alerts and exceptions these controls generate?
A company that answers no to several of those questions has a configuration problem before it has an E5 problem. Moving the same weak setup to a higher license may add entitlement while leaving the original security weakness in place.
Where Microsoft 365 E5 Security Goes Further
Microsoft 365 E5 security becomes more important when the organization’s requirements move from prevention into risk detection, investigation, response, privileged access, or higher data controls. Those differences can matter greatly for selected users even when most employees remain well covered by E3.
Identity risk and privileged access
The identity difference begins with Entra ID P1 and P2. E3 contains P1, while E5 contains P2. Microsoft’s current Microsoft Entra plans and pricing lists P1 at $7 per user/month and P2 at $10 as standalone annual-commitment reference prices, while confirming their inclusion in the respective enterprise suites. The extra value in P2 is tied to identity risk and privileged-access requirements rather than ordinary sign-in access.
An E3 administrator can create Conditional Access rules around known conditions. E5 can work with deeper risk signals and privileged-access functions that help when the account’s condition changes. That matters for compromised credentials, abnormal sign-ins, and administrators who shouldn’t hold powerful roles continuously.
Consider 2 users. One is a standard employee working from a managed laptop with MFA and normal company applications. The other is an administrator who can alter tenant-wide settings. Giving both users the same security treatment ignores the difference in what an attacker can do after taking over either account.
Higher identity controls become more useful when the organization needs to:
- Detect risky sign-ins or risky users
- Apply access decisions based on current identity risk
- Use time-bound privileged role activation
- Review sensitive access on a defined schedule
- Reduce permanent administrator rights
- Build stronger evidence around privileged access
These requirements can justify Microsoft 365 E5 security for administrators even when a full-company upgrade doesn’t make sense.
Deeper threat investigation and response
E3 provides several prevention controls, but E5 reaches further into what happens after suspicious activity appears. Defender Plan 2 capabilities can give analysts more context around endpoint activity. Defender for Office 365 Plan 2 adds stronger investigation and response functions. The broader Microsoft Defender stack can correlate signals from several security areas rather than forcing analysts to inspect each event in isolation.
Calance’s Microsoft 365 E3 vs E5 vs E7 comparison places these differences within the wider 2026 licensing stack, which is useful when security is only one part of the renewal decision. For this article, the important point is narrower: E5 can give a security operations team more context and response depth once prevention controls have been passed.
A phishing incident shows the distinction. E3 may detect or block a malicious attachment or link. A security team dealing with a wider attack may need to determine whether related activity also occurred on an endpoint, user identity, mailbox, or connected cloud service. That investigation requirement is where E5-level Defender capabilities carry more weight.
Microsoft 365 E5 security therefore has the clearest value when someone is prepared to use those signals. Buying richer detection tools without assigning people to review and respond to incidents leaves part of the investment idle.
Data security and compliance depth
Purview forms another important E3 and E5 boundary. E3 already contains several information-protection functions, so this isn’t a choice between having data controls and having none. The question is how much depth the organization needs around classification, DLP, audit, eDiscovery, insider risk, communication compliance, and records management.
A company handling ordinary internal files may be comfortable with E3’s available controls. A legal team managing investigations or an employee group handling regulated information can create a different requirement. Those users may need richer audit records, stronger eDiscovery functions, insider-risk analysis, wider DLP coverage, or automated classification.
This is where role and data type matter more than job title. A senior executive doesn’t automatically need every E5 compliance function. A records analyst, investigator, or employee handling tightly controlled information may have a clearer reason.
What Does the Security Gap Cost Through Add-Ons?
An E3 customer doesn’t have to move directly to E5. Microsoft sells separate security suites that can add higher controls to E3, which gives organizations another way to price the gap.
The Defender Suite currently has a published price of $12 per user/month for eligible E3 customers. Microsoft’s Defender Suite pricing places email, endpoint, identity, SaaS, and XDR functions within that package, so a company paying the $39 E3 reference price would reach $51 for an E3 plus Defender user. That remains $9 below the $60 E5 reference price.
The math looks simple when the user needs only one advanced security area.
| Configuration | Published Monthly Cost Per User | Difference From E5 |
| E3 | $39 | $21 less |
| E3 + Defender Suite | $51 | $9 less |
| E3 + Purview Suite | $51 | $9 less |
| E3 + Defender + Purview | $63 | $3 more |
| E5 | $60 | Reference |
The table explains why Microsoft 365 E3 pricing can remain attractive for a targeted security requirement. If 200 employees need higher threat protection but don’t need advanced Purview functions, putting the Defender Suite on those 200 users can cost less than giving them E5 at published prices.
The calculation becomes less favorable as more add-ons accumulate. Before buying them separately, a company should review its full Microsoft bill and other security contracts. Calance’s Microsoft 365 license-spend review addresses the same renewal problem from the seat and add-on side, and that review becomes particularly useful when several products now cover similar functions.
Purview follows the same pattern. Microsoft’s current Microsoft Purview pricing lists the Purview Suite at $12 per user/month for eligible E3 customers. E3 plus Purview therefore reaches $51 at published prices, which can work well for a user whose main gap is advanced data security rather than the broader E5 security stack.
The break-even point appears when the same user needs both full suites. E3 at $39 plus Defender at $12 and Purview at $12 reaches $63. Microsoft 365 E5 pricing is $60, so E5 costs $3 less at the reference price for that combination.
Real contracts can change these numbers. Enterprise agreements, geography, purchasing channels, committed volume, and existing discounts can move the final cost in either direction. The useful method is to repeat the calculation with the prices on the company’s own renewal quote.
The Hidden Cost of Staying on E3
The license comparison still leaves out several costs. Staying on E3 can be the lower-cost choice when other products already cover its gaps. It can become expensive when the organization keeps buying separate tools and paying people to maintain overlapping systems.
Start with third-party coverage. Many enterprises already use CrowdStrike or another EDR platform. Others use Proofpoint for email security, CyberArk for privileged access, Okta for identity, or separate DLP products. A missing Microsoft feature doesn’t create a real security gap when another product already supplies the required control and the organization intends to keep it.
The correct inventory should identify:
- Which security product owns each required control
- Which Microsoft capability overlaps with that product
- Whether the third-party contract can be cancelled
- When that contract renews
- Whether migration would require policy rebuilding
- Whether analysts already know the existing platform
- Which systems sit outside Microsoft’s coverage
This inventory can stop a company from paying twice. It can also show where consolidation may reduce the number of tools the security team has to manage. A wider cybersecurity services review can help connect Microsoft controls with endpoint, identity, monitoring, and other security investments when several platforms are already in place. The useful output is a control map, not a vendor count.
Administration is another cost. Separate security systems can bring their own policy sets, dashboards, connectors, renewal dates, access roles, and reporting routines. A cheaper license can lose part of its price advantage if the surrounding stack requires large amounts of specialist time.
Endpoint requirements deserve particular attention because E3 already includes Defender for Endpoint Plan 1. Microsoft’s Defender for Endpoint Plan 1 overview confirms that the tier includes next-generation protection, manual response actions, attack-surface reduction, and central management. A company should check whether those functions meet its endpoint requirement before buying another platform or assuming E5 is necessary.
Security operations create another hidden bill. Rich alerts don’t investigate themselves. Someone needs to decide which events are harmless, which require containment, and which indicate a wider incident. That workload exists whether the company uses E5 Defender tools or a separate EDR platform.
Where internal teams can’t provide enough coverage, managed detection and response services can become part of the cost model because the operating requirement continues after the software is deployed. The license question should therefore include the cost of getting a human response when the platform detects something serious.
Risk also has a financial side, but it needs careful treatment. IBM’s 2026 breach-cost research reports a global average breach cost of $4.99 million, up 12% from the prior report, and shows how faster security operations can affect breach economics. That figure supports the importance of detection and response, but it doesn’t prove that E5 will prevent a $4.99 million loss or that an E3 customer carries that exact exposure.
The hidden cost of staying on E3 therefore comes from uncovered controls, duplicate tools, operational effort, and response capability. Those items should be measured directly rather than converted into a generic breach-cost claim.
When Is Microsoft 365 E3 Security Enough?
Microsoft 365 E3 security can be enough for a large part of an enterprise workforce. The answer depends on how employees work, what data they handle, what privileges they hold, and which controls the company already runs outside Microsoft.
E3 has a stronger case when the following conditions are true:
- Users work mainly from managed and compliant devices.
- Conditional Access covers important applications and sign-in paths.
- MFA is enforced through appropriate policy.
- Defender for Office 365 Plan 1 policies are configured.
- Endpoint prevention controls are active.
- Core DLP and information-protection functions meet the data requirement.
- Another product already handles any advanced EDR or identity need.
- Alerts have a defined owner and review process.
Microsoft 365 E3 pricing becomes particularly important in a large workforce with many standard users. Keeping 4,000 employees on E3 rather than moving them automatically to E5 preserves $1.008 million a year at the published $21 monthly difference. That money can then be compared with the cost of higher controls for a smaller population.
This decision still assumes E3 is being used well. An inactive Conditional Access policy doesn’t become useful because it exists in the license. The same applies to an unassigned Intune profile or a Defender alert queue nobody reviews. Security capability has to be deployed before its value can be compared fairly.
When Does Microsoft 365 E5 Security Cost Less?
Microsoft 365 E5 security starts to look cheaper when the same user requires several higher-tier controls. The clearest current example is the $63 published total for E3 plus both the Defender and Purview Suites. E5 comes in at $60 before any value from other E5 entitlements is counted.
The economic case can improve when an E5 move allows the company to remove another paid security product. Suppose an organization spends $39 on E3 and $15 on an external security product for a user. Its effective software cost is already $54 before other add-ons are counted. If more paid controls are required, the gap to E5 can disappear quickly.
Microsoft 365 E5 pricing also becomes easier to support for users who need several of these capabilities at the same time:
- Risk-based identity controls
- Privileged-access management
- Deeper endpoint investigation
- Email threat hunting and automated response
- Cross-workload XDR
- Advanced Purview functions
The key phrase is “at the same time.” If 200 people need Defender and a separate 100 need advanced Purview functions, adding $24 to all 300 users would distort the calculation. Each population should be priced against its own requirement.
This is why Microsoft 365 E3 vs E5 rarely has one correct answer for every employee. E5 can be the cheaper package for a high-risk group while E3 remains the better choice for most of the workforce.
Can You Mix E3 and E5 Licenses?
A mixed model can keep Microsoft 365 E3 security across the standard workforce while reserving E5 for users who create higher identity, investigation, or data-security requirements. That approach can reduce unnecessary license spend, but it needs careful attention to Microsoft’s service-specific licensing terms.
A company might separate users into groups such as:
- Standard knowledge workers on managed devices
- Privileged administrators
- Security operations staff
- Legal and investigation personnel
- Employees handling regulated or highly sensitive information
- High-risk accounts with a documented need for extra controls
The group names don’t decide the license. The security requirement does. A chief executive who uses ordinary applications may not need every E5 security feature, while an administrator several levels lower in the organization may control systems that justify the higher tier.
Mixed licensing also needs technical planning. Some Microsoft security services can be scoped to licensed users, while tenant-level services can have different licensing requirements. The company needs to confirm who receives or benefits from each function instead of buying a handful of licenses and assuming that the whole tenant is covered.
The financial advantage can be meaningful. Microsoft 365 E3 pricing remains on the wider population, while Microsoft 365 E5 pricing is applied to users whose risk or compliance need justifies the difference. That produces a more defensible renewal model than upgrading everyone based on a single department’s requirement.
What Does a Mixed Model Cost for 1,000 Users?
Consider an organization with 1,000 Microsoft 365 users. A full move from E3 to E5 adds $252,000 per year at published reference prices.
Now suppose its security review finds 3 populations. Seven hundred employees can remain on E3 because current controls meet their requirements. Another 200 need the Defender Suite. The remaining 100 have security or data requirements that justify E5.
| Population | License Model | Monthly Cost Per User | Annual Cost |
| 700 users | E3 | $39 | $327,600 |
| 200 users | E3 + Defender Suite | $51 | $122,400 |
| 100 users | E5 | $60 | $72,000 |
| Total | Mixed | $522,000 |
Giving all 1,000 employees E5 would cost $720,000 per year at the same list price. The mixed example costs $522,000, which is $198,000 less.
That $198,000 isn’t a guaranteed saving. The organization still has to check whether the 200 Defender users are already covered by another paid security product. It also needs to confirm that the proposed mixed setup complies with Microsoft licensing requirements.
The example shows why a security review should happen before a renewal quote is multiplied across headcount. The license decision becomes much clearer when users are grouped by the control they actually need.
How Should You Decide Before the Next Microsoft 365 Renewal?
The strongest renewal process starts with the environment rather than the E3 and E5 product names. Each stage should reduce uncertainty until the company can explain why each user group remains on E3, receives an add-on, or moves to E5.
Step 1: Confirm the exact subscription
Start by verifying that the company has Microsoft 365 E3 rather than Office 365 E3. The names look similar, but their identity, device-management, Windows, and endpoint-security entitlements aren’t the same. Using the wrong product as the baseline can invalidate the rest of the comparison.
Step 2: Check what E3 already includes
Review current service plans and confirm whether the 2026 additions have reached the tenant. Then check configuration. A service can appear in the license while policies remain at defaults or never reach the intended users.
Step 3: List the real security gaps
Write each gap as an outcome rather than starting with a Microsoft product name. Examples could include inability to detect risky identities, permanent administrator privileges, weak endpoint investigation, insufficient DLP coverage, or limited audit depth.
A simple working table can keep this review focused:
| Security Requirement | Covered Today? | Current Product | Users Affected | Action Needed |
| Managed-device access | Yes | E3 | 1,000 | Keep |
| Advanced threat investigation | Partial | Existing EDR | 250 | Review overlap |
| Privileged access | No | None | 60 | Price higher control |
| Advanced data investigation | Partial | E3 | 90 | Price Purview/E5 |
Step 4: Map every existing security product
Record the tools already covering endpoint security, email, identity, privileged access, data protection, and managed monitoring. Include renewal dates and contract terms. A product that remains under contract for another year can’t be treated as an immediate saving from an E5 upgrade.
Step 5: Calculate the real E3 cost
Start with Microsoft 365 E3 pricing from the company’s contract rather than the public website. Add required Microsoft suites and third-party products for each user group. Include services that can’t be removed after the proposed change.
Step 6: Calculate the real E5 cost
Use the company’s quoted Microsoft 365 E5 pricing, then subtract only products that can genuinely be retired. Include any migration work needed to replace existing tools, move policies, train analysts, or update operating procedures.
Step 7: Add the people and monitoring requirement
Decide who will review alerts and handle investigations. A license with stronger XDR or email investigation functions still needs operational ownership. Include after-hours coverage where the organization’s risk level requires it.
Step 8: Validate licensing scope
Check Microsoft Product Terms and service-specific licensing guidance before approving a mixed model. Security and compliance functions don’t all follow the same scoping rules, so the number of administrators using a console may differ from the number of people who need to be licensed.
Step 9: Compare the choices by user group
Place E3, E3 plus selected add-ons, E5, and existing third-party coverage side by side. A structured Microsoft 365 services assessment can bring license use, configuration, security requirements, and current environment data into the same review. The final decision should show the required control and cost for each user group rather than one license recommendation for the entire company.
This process makes Microsoft 365 E3 vs E5 easier to defend to finance and security leadership. Both teams can see the control being purchased, the users who need it, and the alternatives considered before the company commits to another year of licensing.
Common Microsoft 365 E3 vs E5 Costing Mistakes
A licensing decision can be wrong even when every price in the spreadsheet is correct. Most errors come from comparing the wrong products, using old entitlement information, or ignoring costs that sit outside the Microsoft invoice.
Watch for these mistakes:
- Using pre-July 2026 E3 feature comparisons
- Treating Office 365 E3 and Microsoft 365 E3 as the same package
- Assuming every Microsoft feature gap is an uncovered security control
- Ignoring third-party products already filling the gap
- Upgrading every user because a smaller group needs E5
- Comparing license prices without security-operations costs
- Counting software savings before existing contracts can be cancelled
- Assuming ownership of a feature means it is configured and monitored
Keyword and feature tables can make Microsoft 365 E3 vs E5 look like a simple tier decision. Real environments are messier. Companies often have several years of security purchases layered around Microsoft 365, and those contracts can change the financial answer.
The right review removes old assumptions first. It checks the current E3 entitlement, maps actual security gaps, identifies existing coverage, and prices only the controls still missing.
Conclusion
Microsoft 365 E3 vs E5 now has a narrower security gap in some areas than older comparisons suggest. E3 gained Defender for Office 365 Plan 1 and more Intune capability in 2026, which gives companies a stronger base before any E5 upgrade is considered.
The direct difference remains $21 per user/month at published U.S. prices. Microsoft 365 E3 security can be enough for many standard users when its included controls are configured and another product covers any remaining requirement. Microsoft 365 E5 security becomes more compelling when the same users need deeper identity, investigation, response, and data controls.
The final calculation should therefore be made by user group. Price the missing controls, include existing security products and operating costs, and compare that result with the actual E5 renewal quote. That shows what the security gap really costs instead of assuming the higher license is always safer or the lower license is always cheaper.
FAQs
What Is the Main Difference Between Microsoft 365 E3 and E5 Security?
Microsoft 365 E3 security provides identity controls through Entra ID P1, endpoint prevention through Defender for Endpoint Plan 1, Defender for Office 365 Plan 1, device management, Windows security, and core Purview functions. Microsoft 365 E5 security adds deeper identity-risk functions, privileged-access controls, broader investigation and response, XDR capabilities, and higher data-security functions.
What Is Microsoft 365 E3 Pricing in 2026?
Microsoft 365 E3 pricing is $39 per user/month at Microsoft’s published U.S. reference price for the applicable annual commitment after July 1, 2026. Contract pricing can differ based on the agreement, region, purchasing channel, volume, and whether Teams is included.
What Is Microsoft 365 E5 Pricing in 2026?
Microsoft 365 E5 pricing is $60 per user/month at Microsoft’s published U.S. annual-commitment reference price. That places the current published difference from E3 at $21 per user each month.
How Much More Does E5 Cost Than E3 Per Year?
The published $21 monthly gap equals $252 per user each year. That becomes $25,200 for 100 users, $126,000 for 500 users, $252,000 for 1,000 users, and more than $1.2 million for 5,000 users.
Does Microsoft 365 E3 Include Defender for Office 365?
Yes. Defender for Office 365 Plan 1 became part of Microsoft 365 E3 effective July 1, 2026. It includes Safe Links, Safe Attachments, anti-phishing protection, and real-time detections. Plan 2 remains the higher tier for functions such as advanced investigation, hunting, automation, and Attack Simulation Training.
Is Microsoft 365 E3 Security Enough for an Enterprise?
It can be enough for many enterprise users when Conditional Access, endpoint controls, email protection, device compliance, and core data controls meet the company’s requirements. Organizations still need to check for gaps around identity risk, privileged access, advanced investigation, and sensitive-data use.
Is E3 Plus Defender Cheaper Than E5?
At published reference prices, E3 at $39 plus the $12 Defender Suite costs $51 per user/month. That is $9 below the $60 E5 reference price. The calculation changes if the same user needs other higher-tier controls.
Is E3 Plus Purview Cheaper Than E5?
At published prices, E3 plus the $12 Purview Suite also costs $51 per user/month. That can make sense when advanced information protection and compliance functions are the main gap and the user doesn’t require the wider E5 security package.
What Happens if a User Needs Both Defender Suite and Purview Suite?
Adding both $12 suites to the $39 E3 reference price creates a monthly total of $63. E5 costs $60 at the current published reference price, so E5 is $3 lower for a user who genuinely needs both complete suites.
Do All Employees Need Microsoft 365 E5?
No. A company can often keep standard employees on E3 while assigning higher licenses or add-ons to groups with documented security needs. The exact design must still follow Microsoft’s licensing requirements for each service.
Can Third-Party Security Products Make E3 the Better Choice?
Yes. An existing endpoint, email, identity, privileged-access, or data-security product may already close an E3 gap. The company should compare control coverage and contract costs before paying Microsoft for the same requirement again.
Does E5 Automatically Make Microsoft 365 More Secure?
No license creates protection by itself. E5 adds security functions, but they still require correct configuration, appropriate licensing, monitoring, investigation processes, and regular policy review. A well-run E3 environment can provide stronger practical protection than an E5 environment where higher controls remain unused.
