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About this licence
Microsoft Office 365 E3 36 months – Enterprise-Grade Productivity with Predictable Long-Term Licensing
For organisations that view software not as a monthly expense but as a strategic, long-term investment, the Microsoft Office 365 E3 36-month subscription offers a compelling blend of advanced productivity, enterprise security, and financial predictability. This is a comprehensive, cloud-powered suite that moves beyond basic document editing to provide a secure, compliant, and always-up-to-date digital workspace. By committing to a three-year term, your business locks in a stable platform for collaboration and communication, eliminating the administrative overhead of annual renewals and providing a consistent environment for your IT team to manage. This plan delivers the full desktop Office applications your team expects, combined with the backend power of Exchange Online, SharePoint, and Teams, all underpinned by advanced compliance and information protection tools that are critical for modern data governance. At Lizensa, we provide this genuine, enterprise-ready subscription with instant digital delivery and the dedicated support required to ensure a seamless integration into your existing Microsoft 365 tenant, allowing you to focus on business outcomes, not license management.
Key features and benefits
Full suite of premium Office desktop applications: Equip every user with the latest versions of Word, Excel, PowerPoint, Outlook, OneNote, and Publisher (PC only) for a familiar and powerful productivity experience. The benefit is a consistent toolset across your organisation, eliminating compatibility issues and ensuring everyone can leverage advanced features like Power Query in Excel or Morph transitions in PowerPoint.
Installation on up to 5 devices per user: Each licensed user can install the full Office suite on up to 5 PCs, Macs, or mobile devices simultaneously. This flexibility supports a modern, multi-device workforce, allowing your team to be productive on their desktop in the office, a laptop at home, and a tablet on the go, all under a single user subscription.
Enterprise-grade email with a 100 GB mailbox: Hosted Exchange Online provides a robust, secure email platform with a 100 GB mailbox per user, shared calendars, and contacts. The benefit is a professional, ad-free email experience with industry-leading anti-malware and anti-spam protection, ensuring reliable communication and reducing the risk of phishing attacks.
Advanced compliance and information protection: Safeguard sensitive data with built-in tools including Data Loss Prevention (DLP), eDiscovery, legal hold, and Azure Information Protection. This is a direct benefit for legal, finance, and healthcare teams, enabling them to automatically classify, label, and protect data based on sensitivity, ensuring regulatory compliance without manual intervention.
What you get
Digital delivery after purchase
License details and activation instructions included
Suitable for private or business use where the product terms allow
Lizensa support for installation and activation questions
Cloud productivity suite for email, files, meetings and collaboration
Subscription duration and tenant setup should be checked before activation
Suitable for managed business accounts and admin-led rollout
Specifications
Operating system
Cloud, Windows, macOS
Version
Latest
SKU
LZP-0285
Licence
Perpetual / lifetime
Architecture
x64, arm64
Languages
From order to activation
01Order received
02Key verified
03Email delivered
04You activate
Common questions
What are the system requirements for Microsoft Office 365 E3 36 months?
Microsoft Office 365 E3 36 months requires Windows 10/11, macOS, at least 4 GB of RAM (though 8 GB is recommended), and 2 GB of free storage space. An internet connection is needed for download and activation.
What kind of license do I get with Microsoft Office 365 E3 36 months from Lizensa?
Your Microsoft Office 365 E3 36 months license is a perpetual (lifetime) license — buy once and use forever on one device. This means no recurring fees or subscriptions. You'll also receive free updates and security patches from Lizensa.
What's included with my Microsoft Office 365 E3 36 months purchase from Lizensa?
Your purchase includes a genuine Microsoft Office 365 E3 36 months license key, a download link from the official Microsoft website, step-by-step activation instructions, a VAT invoice (EU), and lifetime access to the key in your Lizensa account. All keys are authentic and backed by our 14-day money-back guarantee.
Why is Microsoft Office 365 E3 36 months so much cheaper on Lizensa?
At just €314.90, our Microsoft Office 365 E3 36 months license is up to 86% cheaper than retail because we buy in wholesale volume from European distribution channels and pass the savings directly to you. You get the exact same genuine product — just without the retail markup.
How do I install and activate Microsoft Office 365 E3 36 months from Lizensa?
After purchase, you'll receive a download link and license key by email. Download the software from the official Microsoft website, enter your key during installation or in the activation menu, and follow the guided setup. Full instructions are included with your purchase.
Is Microsoft Office 365 E3 36 months compatible with my operating system?
Microsoft Office 365 E3 36 months is compatible with current versions of Windows and macOS. Please check the system requirements section on this page before purchasing. Most modern PCs and Macs meet or exceed the minimum requirements.
How quickly will I receive my license key from Lizensa?
Your license key is delivered instantly via email after payment is confirmed — typically within 30 seconds. You'll also find it in your Lizensa account dashboard under My Library.
Are Lizensa license keys genuine and legal in the EU?
Yes. Our licenses are sourced through European distribution channels and come with a VAT invoice. The EU Court of Justice (UsedSoft v Oracle, C-128/11) has confirmed that software license resale is legal within the European Economic Area.
What is Lizensa's refund policy?
We offer a 14-day money-back guarantee on all licenses. If you encounter any issues with activation or the product doesn't meet your needs, contact our support team for a full refund — no questions asked.
productDetail.faq.activation.question
After purchase, you'll receive an email with your license key and step-by-step activation instructions. Simply enter the key during installation or in your system's activation settings. Most activations take under 2 minutes.
Do I get support with my Lizensa purchase?
Absolutely. Our multilingual support team responds within one hour during business hours. We can assist with installation, activation troubleshooting, and license questions via email in English, German, French, Spanish, Italian, Dutch, and Polish.
Is this licence lawfully resold in the EU?
Yes. Sourced through authorized European distribution channels. Every key is genuine and resaleable under EU “exhaustion of rights” (CJEU C-128/11).
How fast does the key arrive?
Average delivery is 43 seconds. We commit to under 60 seconds. If we miss that, you get a free replacement.
Can I get a refund if it doesn’t work for me?
Yes. EU consumer law gives you 14 days to return any unused key — no fees, no questions. Honoured without friction.
Do you provide a VAT invoice for B2B?
Yes. EU-compliant invoice with every order, downloadable from your dashboard. Valid VAT number triggers automatic reverse-charge.
What languages is the activation guide in?
EN, DE, FR, ES, NL, PL, IT, PT — matched automatically to your account locale.
What if I have trouble activating?
Email or chat support replies in your language within an hour during EU business hours. We’ll walk you through it or replace the key.
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Unlimited personal cloud storage with OneDrive: Each user starts with 1 TB of OneDrive storage, which expands to unlimited for organisations with 5 or more users. This provides a secure, centralised location for all work files, enabling easy sharing, real-time co-authoring, and automatic syncing across devices, while reducing reliance on insecure local storage or unmanaged file shares.
Centralised admin control and deployment: The Microsoft 365 admin centre gives IT administrators granular control over user accounts, license assignment, security policies, and device management. The benefit is a significant reduction in IT overhead, allowing for streamlined deployment of software, enforcement of security baselines, and monitoring of usage from a single, web-based console.
Always up-to-date software: Unlike a one-time purchase that becomes outdated, this subscription ensures you are always running the latest version of the Office applications with new features and security updates. This eliminates the cost and complexity of future upgrade projects and ensures your team always has access to the newest productivity innovations.
Microsoft Teams for unified communication: Included as a core component, Teams provides a hub for chat, video conferencing, calling, and file collaboration. The benefit is a single platform that reduces app-switching, streamlines project communication, and integrates deeply with the other Office 365 apps for a seamless workflow.
Predictable 36-month licensing term: The three-year subscription provides long-term cost predictability and stability for budgeting. This is a key advantage for managed IT environments and organisations seeking to standardise their software estate, avoiding the price fluctuations and administrative burden of monthly or annual renewals.
What's included with your purchase
When you purchase the Microsoft Office 365 E3 36-month subscription from Lizensa, you are acquiring a genuine, digitally delivered activation key for a single user. This is not a perpetual license but a term-based subscription that remains active for the full 36-month period from the date of activation. Your purchase includes a clear, step-by-step activation guide that walks you through the process of redeeming the key within your Microsoft 365 admin centre. You will also receive a detailed, VAT-compliant invoice suitable for business accounting and tax purposes. The license is designed for activation on a cloud-based tenant and is compatible with Windows and macOS environments. It is crucial to understand that this is a subscription license, meaning access to the software and services is contingent on an active subscription term. The key you receive is a digital entitlement that adds the 36-month E3 plan to your existing or new Microsoft 365 tenant, which you then assign to a user account.
Office versions compared — which one should you buy?
Choosing the right Microsoft 365 plan is a critical decision that impacts your team's capabilities and your IT budget. The Microsoft Office 365 E3 plan sits in a strategic middle ground, offering a significant step up from the Business plans while remaining more accessible than the fully-featured E5 tier.
Microsoft 365 E3 vs. One-Time Purchase (e.g., Office 2021 Professional): A one-time purchase provides a static version of the core Office apps for a single device, with no cloud services, no upgrade rights, and limited security updates over time. The Office 365 E3 subscription is a fundamentally different model. It provides the always-latest desktop apps for up to 5 devices per user, plus enterprise cloud services like Exchange Online, 1 TB+ of OneDrive storage, and Teams. For any business that relies on collaboration, remote work, or needs to ensure data compliance, the subscription model is the superior, future-proof choice.
Microsoft 365 E3 vs. Microsoft 365 Business Premium: The Business Premium plan is an excellent choice for small to mid-sized businesses (up to 300 users) and includes many similar features, such as the desktop apps and advanced security. However, the E3 plan is built for enterprise scale. It unlocks unlimited OneDrive storage (for 5+ users), offers more sophisticated compliance tools like eDiscovery and legal hold, and provides greater administrative control designed for larger, more complex IT environments. If your organisation has dedicated IT staff and requires granular data governance, E3 is the correct path.
Microsoft 365 E3 vs. Microsoft 365 E5: The E5 plan is the ultimate tier, adding best-in-class security, compliance, and analytics. It includes Power BI Pro for data visualisation, advanced telephony features with Phone System, and superior threat protection with Microsoft Defender for Office 365 Plan 2. The E3 plan includes the core productivity and compliance suite that satisfies the needs of most enterprises. You should consider E5 only if you specifically require the advanced security analytics, unified communications capabilities, or Power BI Pro licenses that it bundles.
This edition is best for mid-sized to large organisations that need enterprise-grade productivity, security, and compliance tools without the full cost of the E5 suite. It is the ideal choice for businesses in regulated industries that must manage data retention and legal discovery, and for IT departments that need centralised control over a distributed workforce.
System requirements / compatibility
Microsoft Office 365 E3 is a cloud-connected suite designed to work across a broad range of modern devices. The core desktop applications are compatible with both Windows and macOS, while the web-based apps and services function on any modern browser.
Operating System: The full desktop applications are supported on the current and two previous versions of Windows and macOS. For Windows, this typically includes Windows 11 and Windows 10. For macOS, the three most recent versions are supported. The web-based services are accessible from any device with a modern web browser.
Hardware: A minimum of 4 GB of RAM is required, though 8 GB is recommended for optimal performance, especially when working with large datasets in Excel or complex presentations in PowerPoint. A minimum of 4 GB of available disk space is needed for the installation of the desktop applications. The software is available in both 32-bit and 64-bit architectures, with the 64-bit version being the default and recommended choice for modern hardware.
Connectivity: An internet connection is required for the initial activation of the license and for ongoing access to cloud-based features. While the desktop apps can be used offline, a periodic internet connection is necessary to maintain license validity and synchronise files.
Language Support: This product supports installation in multiple languages, including English, German, French, Dutch, and Polish, allowing your team to work in their preferred language.
Please note that exact system requirements can vary by feature and update. We strongly recommend validating the most current specifications against the official Microsoft vendor documentation before deployment.
Installation and activation
Your journey to a fully deployed Office 365 E3 environment begins immediately after purchase. Lizensa delivers your unique digital license key and a comprehensive activation guide directly to your email inbox, typically within seconds. The process is designed for IT administrators and follows a clear, logical path.
Receive Your License: You will receive an email containing your 36-month Office 365 E3 activation key and a link to a detailed, step-by-step guide.
Redeem in Admin Centre: The activation key is not entered into an Office application directly. Instead, you will log into your Microsoft 365 admin centre, navigate to the billing section, and redeem the key to add the 36-month E3 subscription to your tenant.
Assign to Users: Once the subscription is active on your tenant, you can assign the license to a specific user account. The user will then be able to download and install the Office applications on their devices.
Download and Install: The licensed user signs in at portal.office.com with their work account, where they can download the desktop apps directly from Microsoft's official servers.
If you encounter any issues during this process, Lizensa provides free, multilingual technical support. Our team is experienced in troubleshooting tenant-level activations and can assist you in ensuring a smooth deployment. As this is a subscription-based license, you can reassign it to a different user within your organisation if an employee leaves, and the software can be reinstalled on new devices as needed, all managed through your admin centre.
Why choose Lizensa for your software licenses
Securing your enterprise software through Lizensa means choosing a partner that prioritises authenticity, speed, and your rights as a European consumer. We understand that a software license is a critical business asset, and our entire process is built to deliver it with the trust and efficiency you deserve. When you complete your purchase, our automated system immediately processes your order, delivering your genuine Microsoft Office 365 E3 key by email in under a minute on average, so your IT project never waits on a delivery window. Every license we sell is sourced directly from authorised European distribution channels and is verified for authenticity, guaranteeing you a 100% legitimate product that will pass any software audit. Your purchase is protected by full EU consumer rights, including a 14-day refund guarantee and a European warranty, giving you confidence that your investment is secure. For business customers, we provide a detailed VAT invoice with every order, with reverse-charge mechanisms available for B2B transactions to simplify your accounting. Our checkout is secured by Stripe, offering a familiar and safe payment experience with support for SEPA, iDEAL, BLIK, Google Pay, and major credit cards. Should you have a question before or after your purchase, our free multilingual support team is ready to assist, ensuring your activation is valid and functional across all 27 EU member states.
FAQ — frequently asked questions
Is the Microsoft Office 365 E3 a subscription or a one-time purchase?
This is a subscription-based license. Your purchase provides a 36-month term of service for one user. Access to the software and cloud services is active for the full three-year period and requires no renewal action during that time.
How fast will I receive my license key after purchase?
Our delivery process is fully automated. In the vast majority of cases, the digital license key and activation instructions are delivered to your email inbox within 60 seconds of a completed payment.
Is this a genuine and legal Microsoft license?
Absolutely. Lizensa supplies exclusively genuine, verified licenses sourced from authorised European distributors. You will receive a legitimate activation key that is fully compliant with Microsoft's licensing terms and will pass any software asset management audit.
What happens if I have trouble with the activation process?
We provide free, multilingual technical support to all our customers. If you encounter any difficulties while redeeming the key in your Microsoft 365 admin centre, our support team is available to guide you through the process until activation is successful.
Can I reinstall the software or transfer the license to a new user?
Yes. The license is managed through your Microsoft 365 admin centre. You can unassign the license from one user and reassign it to another within your organisation. The licensed user can also install the Office applications on up to 5 devices and reinstall them as needed.
Does this license work in my country within the European Union?
Yes, the license is valid for activation and use in all 27 EU member states. It is a pan-European license that provides full functionality regardless of where your team is located within the EU.
What payment methods does Lizensa accept?
Our Stripe-secured checkout supports a wide range of payment methods, including SEPA bank transfers, iDEAL, BLIK, Google Pay, and all major credit and debit cards. You can choose the most convenient option for your business.
Will I receive a proper VAT invoice for my purchase?
Yes, a detailed, VAT-compliant invoice is provided with every order. For eligible B2B customers, we can apply a reverse-charge mechanism to simplify your intra-community VAT accounting.
What is your refund policy?
We offer a 14-day right of withdrawal in compliance with EU consumer protection law. If you have not activated the license, you can request a full refund within this period. Our support team will process your request promptly.
What is the difference between this E3 plan and the Microsoft 365 Business Premium plan?
While both include the desktop Office apps and advanced security, the E3 plan is built for enterprise scale. Key differentiators include unlimited OneDrive storage (for 5+ users), more advanced compliance tools like eDiscovery and legal hold, and greater administrative controls designed for larger, more complex IT environments.
Do I need an existing Microsoft 365 tenant to use this license?
You do not need a pre-existing paid subscription, but you will need a Microsoft 365 tenant. During the activation process, you can create a new tenant for free if your organisation does not already have one, and then redeem your E3 license to it.
How many devices can I install the Office apps on with one E3 license?
A single user licensed with Office 365 E3 can install the full suite of Office desktop applications on up to 5 PCs or Macs, 5 tablets, and 5 mobile phones simultaneously.
