Microsoft Office 365 E3 12 months monthly plan

Microsoft Office 365 E3 12 months monthly plan – Enterprise-grade productivity with predictable monthly costs

Empower your organisation with the full suite of Microsoft 365 enterprise tools while maintaining financial agility. The Microsoft Office 365 E3 12 months monthly plan delivers a comprehensive, cloud-based productivity environment designed for businesses that require advanced security, compliance, and centralised IT management. This is not a consumer-grade subscription; it is a robust enterprise licence that combines the full desktop Office applications with hosted email, intelligent file storage, and a unified communication platform. By committing to a 12-month term with monthly billing, you avoid a large upfront capital expenditure, transforming a significant software investment into a predictable operational cost. Delivered digitally by Lizensa, you receive a verified licence key and clear activation guidance, allowing your IT administrators to deploy a compliant, scalable Microsoft 365 tenant across your entire workforce, whether they are in the office, at home, or on the move.

Key features and benefits

• Full desktop Office applications for every user: Equip your team with the premium Microsoft 365 Apps for enterprise bundle, including Word, Excel, PowerPoint, Outlook, OneNote, Publisher, and Access. Each user can install the always-up-to-date apps on up to 5 PCs or Macs, 5 tablets, and 5 smartphones, ensuring they have the latest productivity tools on every device they use.
• Enterprise-grade email with a 50 GB mailbox: Move beyond basic email with hosted Exchange Online. Each user receives a 50 GB primary mailbox and an unlimited In-Place Archive, accessible via Outlook desktop and mobile. This provides a professional, ad-free email experience with shared calendars and contacts, managed entirely by your IT team.
• 1 TB of personal cloud storage with OneDrive for Business: Give every employee 1 TB of secure cloud storage to sync, share, and co-author documents in real time. Built-in file versioning and granular sharing controls ensure your data is protected and accessible, reducing reliance on unsecured local file servers.
• Advanced compliance and data protection tools: Protect sensitive information with Data Loss Prevention (DLP) policies that automatically identify and safeguard data like financial or health records. Legal Hold and eDiscovery capabilities simplify the process of finding and preserving electronically stored information for litigation or audits.
• Unified communication with Microsoft Teams: Foster collaboration with a hub for teamwork that integrates chat, online meetings, and calling. Teams is deeply integrated with the Office apps, allowing your staff to collaborate on documents directly within the meeting space, reducing app-switching and improving workflow.
• Centralised IT administration and deployment: Maintain full control over user accounts, device policies, and security configurations through the Microsoft 365 admin centre. This plan is built for managed tenants, allowing IT to deploy software, enforce security baselines, and manage the entire lifecycle of a user account from a single console.
• Azure Information Protection (Plan 1): Classify, label, and protect documents and emails based on their sensitivity. This machine-learning-driven technology helps prevent data leaks by applying persistent protection that travels with the content, regardless of where it is stored or with whom it is shared.
• Predictable monthly billing with an annual commitment: Secure the full E3 feature set for a 12-month term while paying on a monthly schedule. This model is ideal for budget planning, allowing you to align software costs with monthly revenue cycles without the pressure of a large one-time payment.

What's included with your purchase

When you purchase the Microsoft Office 365 E3 12 months monthly plan from Lizensa, you are acquiring a genuine, verified subscription licence for one user for a 12-month term. This is a cloud-based subscription licence tied to your Microsoft 365 tenant, not a perpetual one-time purchase. Your order is processed immediately, and you will receive a detailed email containing your activation key and a direct link to your Lizensa customer account where the licence information is permanently stored. A full VAT invoice is generated automatically and included with your delivery confirmation.

The activation process involves adding the new licence to your existing Microsoft 365 admin centre or, for new organisations, creating a new tenant. Once the licence is added to your tenant, your IT administrator assigns it to a user account. The assigned user can then download and install the Microsoft 365 Apps for enterprise on their devices. This licence is valid for activation and use across all 27 EU member states. Lizensa provides free multilingual support to assist with any questions during the tenant setup or licence assignment process.

Office versions compared — which one should you buy?

Choosing the right Microsoft licence is critical for cost efficiency and operational capability. The Microsoft Office 365 E3 plan occupies a specific tier designed for organisations that need more than basic business tools but may not require the full analytical and voice capabilities of the top-tier E5 plan.

• Microsoft 365 E3 vs. Microsoft 365 Business Premium: While Business Premium includes similar security features and desktop apps, it is capped at 300 users. E3 is designed for larger, mid-to-enterprise organisations with no user limit and provides more advanced compliance features like eDiscovery and legal hold, which are essential for regulated industries.
• Microsoft 365 E3 vs. Office 2021 Professional Plus (One-time purchase): Office 2021 Professional Plus is a perpetual licence for a single PC, providing a static set of desktop apps with no cloud services, no hosted email, and no ongoing feature updates. E3 is a subscription that includes the same desktop apps plus cloud services like Exchange, Teams, and SharePoint, with continuous updates. For a collaborative, mobile workforce, the E3 subscription provides significantly more value.
• Microsoft 365 E3 vs. Microsoft 365 E5: E5 is the ultimate enterprise plan, adding advanced security (Microsoft Defender for Office 365 Plan 2), Power BI Pro analytics, and Phone System for cloud-based calling. If your organisation does not require these advanced threat protection or business intelligence tools, E3 provides the optimal balance of productivity and compliance at a more accessible price point.

This edition includes the full desktop applications: Word, Excel, PowerPoint, Outlook, OneNote, Publisher, and Access. It is the definitive choice for IT administrators in medium-to-large organisations who need centralised user management, enterprise email, and robust data governance without the complexity and cost of the E5 security stack.

System requirements / compatibility

Microsoft Office 365 E3 is a cloud-connected service designed to work across a broad range of modern hardware. The core productivity suite is compatible with Windows and macOS, with full mobile support for iOS and Android. To ensure a smooth deployment, your devices should meet the following minimum specifications.

• Operating System: Windows 10, Windows 11, or the three most recent versions of macOS. A Microsoft account and internet connection are required for initial activation and licence management.
• Processor and Memory: A 1.6 GHz or faster processor with at least 4 GB of RAM is required. For an optimal experience, particularly when working with large datasets in Excel or complex presentations in PowerPoint, 8 GB of RAM is recommended.
• Storage and Architecture: A minimum of 4 GB of available disk space is required for installation. The software supports both 32-bit and 64-bit architectures, with the 64-bit version being the default and recommended choice for modern systems.
• Language Support: This product is available in English, German, French, Dutch, and Polish. Users can install and switch between these interface languages through the Office app settings.

As system requirements can vary slightly depending on the specific update channel and integrated cloud features, we recommend validating your specific environment against the official Microsoft 365 vendor documentation before a large-scale deployment.

Installation and activation

Your journey from purchase to productivity is designed to be fast and straightforward. Immediately after your payment is processed, your digital licence key and a tailored activation guide are delivered to your email inbox and stored securely in your Lizensa customer account. The average delivery time is under 60 seconds.

Activation is a tenant-level operation. An IT administrator must log in to the Microsoft 365 admin centre, navigate to the "Billing" section, and redeem the provided key to add the E3 licences to your organisation's subscription pool. Once added, the licences can be assigned to individual user accounts. The assigned users will then receive an automated email from Microsoft with a direct link to download the Microsoft 365 Apps for enterprise on their devices. There is no complex local installation key to manage; the licence is activated against the user's identity in the cloud. If you encounter any issues during the tenant redemption or user assignment process, Lizensa's free technical support team is available to guide you through the resolution.

Why choose Lizensa for your software licences

Securing enterprise software requires a partner you can trust to deliver genuine, compliant licences without delay. At Lizensa, we have built our reputation on providing a seamless procurement experience for businesses across the European Union. When you buy this Microsoft Office 365 E3 plan from us, you are choosing a digital-first retailer that prioritises speed, legality, and support. Your licence key is delivered digitally in under a minute on average, allowing your IT team to begin deployment immediately. Every licence we sell is 100% genuine and sourced from authorised European distribution channels, ensuring full compliance with Microsoft's terms of service. As an EU-based customer, your purchase is protected by European consumer law, including a 14-day right of refund, and you will receive a complete VAT invoice suitable for your accounting records, with reverse-charge mechanisms available for B2B customers. Our checkout is secured by Stripe, supporting SEPA, iDEAL, BLIK, GPay, and major credit cards, so you can pay with confidence using your preferred method. Should you have any questions, our multilingual support team is here to help, free of charge, ensuring your activation is valid and stable across all 27 EU member states.

FAQ — frequently asked questions

Is the Microsoft Office 365 E3 plan a subscription or a one-time purchase?

This is a 12-month subscription plan with monthly billing. You are committing to a one-year term for the E3 licence, but you pay for it on a monthly basis rather than all at once. The licence must be renewed at the end of the 12-month period to maintain access to the apps and cloud services.

What is the difference between this E3 monthly plan and an annual prepaid subscription?

The core features of the Microsoft Office 365 E3 licence are identical. The difference is purely financial. This plan allows you to pay the annual cost in 12 monthly instalments, which is excellent for cash flow management, whereas an annual prepaid subscription requires the full payment upfront.

How fast will I receive my licence key after purchase?

Our digital delivery system is automated. On average, the email containing your licence key and activation instructions arrives in your inbox within 60 seconds of a successful payment. It is also immediately available in your Lizensa customer account.

Is this a genuine and legal Microsoft licence?

Absolutely. Every licence sold by Lizensa is 100% genuine and sourced through authorised European distribution channels. You receive a legitimate licence that is fully compliant with Microsoft's terms and conditions for commercial use within the EU.

What if I have trouble activating the licence on my tenant?

We provide free multilingual technical support for exactly this situation. If you encounter an error while redeeming the key in the Microsoft 365 admin centre, simply contact our support team. We can help diagnose the issue and guide you through the resolution process.

Can I reinstall or transfer the licence to a new employee?

Yes, this is one of the core benefits of a cloud-based user subscription licence. As an IT administrator, you can unassign the E3 licence from a departing employee's account and reassign it to a new user instantly through the Microsoft 365 admin centre. There is no complex deactivation or transfer process.

Does this licence work on both PC and Mac?

Yes. The Microsoft 365 Apps for enterprise included in the E3 plan are fully compatible with both Windows and macOS. Each user can install the apps on up to 5 PCs or Macs, in addition to their mobile devices.

What payment methods does Lizensa accept?

We offer a secure checkout powered by Stripe, which accepts all major credit and debit cards. For our European customers, we also support SEPA bank transfers, iDEAL, BLIK, and Google Pay, providing you with a wide range of convenient payment options.

Do you provide a VAT invoice for business purchases?

Yes, a detailed VAT invoice is generated automatically with every purchase and included in your delivery email. For B2B customers within the EU, the reverse-charge mechanism can be applied where applicable, ensuring your accounting is straightforward and compliant.

What is Lizensa's refund policy?

We stand by the quality of our licences and comply with EU consumer protection regulations. You have a 14-day right of refund from the date of purchase, provided the licence key has not been activated or redeemed on a Microsoft tenant. This ensures you can shop with confidence.

Does Microsoft Office 365 E3 include Publisher and Access?

Yes, unlike the Business plans, the E3 enterprise plan includes the full suite of desktop applications. This means your users can install and use Publisher for desktop publishing and Access for database management on their Windows PCs.

Is this plan suitable for a company with only 5 employees?

Technically, yes, you can purchase a single E3 licence. However, the E3 plan is designed for managed IT environments with an administrator. For very small businesses without a dedicated IT admin, a Microsoft 365 Business Premium plan might be a more practical fit, though E3 offers more advanced compliance features if they are required.