Get Microsoft Office 2021 Professional Plus with a single one-time payment – no subscription, no recurring fees, no expiry. This is the standalone version of Microsoft Office designed for professionals and businesses who want the complete Office suite permanently installed on their PC without ongoing costs. Your activation key is delivered by email, typically on the same day as your order.

What’s included in your MS Office 2021 Pro Plus license

Your purchase includes one Microsoft Office 2021 Pro Plus activation key for one Windows PC. The key is unused, activates through Microsoft’s official servers, and covers a one-time installation with no subscription required. All desktop applications are installed locally – no internet connection needed to use them after activation.

Applications included in Office 2021 Pro Plus

Microsoft Office 2021 Professional Plus includes the full suite of desktop productivity applications:

• Word 2021 – document creation, editing and advanced formatting
• Excel 2021 – spreadsheets, data analysis, formulas and charts
• PowerPoint 2021 – presentations, design tools and slide management
• Outlook 2021 – email, calendar and contact management
• Access 2021 – database creation and management (Windows only)
• Publisher 2021 – layouts, brochures and marketing materials
• OneNote 2021 – notes, organization and collaboration

All applications are full desktop versions – not web apps. They work fully offline once installed and activated. You can also consider getting the newest version MS Office 2024 Pro Plus.

Office 2021 Pro Plus vs other editions

MS Office 2021 comes in several editions. Professional Plus is the most complete standalone version available:

If you need Access for database work or Publisher for design and marketing materials, Professional Plus is the only edition that includes both.

What is new in Office 2021 compared to Office 2019

Office 2021 brings meaningful improvements across the suite compared to MS Office 2019:

• Excel gains new functions including XLOOKUP, dynamic arrays, and improved data analysis tools
• PowerPoint adds improved presentation recording, ink features, and transition effects
• Word improves co-authoring capabilities and document recovery
• Outlook introduces improved search and a more focused inbox experience
• Teams integration is built in across the suite
• Accessibility improvements across all applications
• Dark mode support improved across Word, Excel and PowerPoint

Who is MS Office 2021 Pro Plus for

Office 2021 Professional Plus is the right choice if you:

• Want the complete Office suite with a one-time affordable payment and no subscription
• Need Access for database management or Publisher for design work – not available in lower editions
• Work in a professional or business environment requiring the full suite
• Prefer software installed locally rather than cloud-dependent tools
• Are running Windows 10 or Windows 11 on a single PC
• Want security and quality updates without paying for a subscription

If you use macOS, this product is not compatible – see our MS Office 2021 H&B for Mac option instead.

System requirements

Before purchasing, confirm your PC meets Microsoft’s minimum requirements for Office 2021:

• Processor: 1.6 GHz or faster, 2-core minimum
• RAM: 4 GB minimum
• Storage: 4 GB available disk space
• Operating system: Windows 10 or Windows 11
• Display: 1280 x 768 resolution minimum
• Graphics: DirectX 9 compatible or later
• Internet: Required for installation and activation only – not required for daily use

If you experience any issues during activation, contact our support team by email. We respond on the same day and will assist until your software is fully activated.

Frequently asked questions

Is this the same Office 2021 sold by Microsoft?
Yes. The software is identical – same applications, same features, same updates. Your key activates through Microsoft’s official servers.

Does this require an internet connection to use?
An internet connection is required during installation and activation only. Once activated, all Office applications work fully offline.

Can I install this on more than one PC?
This key covers activation on one PC.

Is this compatible with macOS?
No. Office 2021 Professional Plus is for Windows only. It is not compatible with macOS, Android or Chromebook. For Mac users we offer Office 2021 Home and Business for Mac.

Browse more options in our MS Office category.