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Microsoft Defender for Office 365 costs $2 to $5 per user/month as of November 2026, with 2 plans available. Plans: Microsoft Defender for Office 365 (Plan 1) at $2/user/month (billed annually), and Microsoft Defender for Office 365 (Plan 2) at $5/user/month (billed annually). Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: No free tier available

Microsoft Defender for Office 365 offers 2 pricing tiers: Microsoft Defender for Office 365 (Plan 1), Microsoft Defender for Office 365 (Plan 2). Paid plans include Microsoft Defender for Office 365 (Plan 1) at $2/user/month (billed annually), Microsoft Defender for Office 365 (Plan 2) at $5/user/month (billed annually). The Microsoft Defender for Office 365 (Plan 2) plan is general users and teams.

No, Microsoft Defender for Office 365 does not offer a free plan as of November 2026. Paid plans start at $2/user/month. Pricing verified from 5 sources by CostBench.

No Free Tier Available

Microsoft Defender for Office 365 does not offer a forever-free plan. We couldn't confirm whether Microsoft Defender for Office 365 offers a free trial; check the vendor's site.

Looking for Free Alternatives?

If a free tier is essential for your needs, consider exploring other email security tools that offer generous free plans. Many competitors provide forever-free options suitable for individuals and small teams.

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Frequently Asked Questions

01 Does Microsoft Defender for Office 365 have a free plan?

No, Microsoft Defender for Office 365 does not offer a free tier. We couldn't confirm whether Microsoft Defender for Office 365 offers a free trial; check the vendor's site. Paid plans start at $2/user/month.

02 What are free alternatives to Microsoft Defender for Office 365?

If you need a free email security solution, consider alternatives that offer generous free tiers. Many competitors in this space provide forever-free plans with basic features suitable for individuals and small teams.

03 How can I get the best deal on Microsoft Defender for Office 365?

Without a free tier, maximize value by: asking about discounts, comparing monthly and annual billing, and starting with the lowest tier that meets your needs.

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