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Office 2021 Professional Online Activation Key for windows 10/11
Office 2021 Professional Plus for 1 Windows PC: the complete suite (Word, Excel, PowerPoint, Outlook, Access, OneNote and Publisher) with a perpetual license and a single payment, no subscription. The most affordable way to get full Office —with Publisher included, which Office 2024 no longer offers— plus your genuine Product Key by email instantly.
1 key = 1 Windows PC Includes Access & Publisher One-time payment Instant email delivery
Office 2021 or 2024? 2021 is cheaper and keeps Publisher; Office 2024 is the latest version, supported until 2029 (without Publisher).
Rated 9.8/10 on eKomi (Gold
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Office 2021: which version is right for you?
Microsoft Office 2021 is available in two editions. Both include a perpetual licence with a one-time payment — no subscription, no renewal, no expiry date:
| Feature | Office 2021 Standard | Office 2021 Professional Plus |
|---|---|---|
| Word | YES | YES |
| Excel | YES | YES |
| PowerPoint | YES | YES |
| Outlook | YES | YES |
| OneNote | YES | YES |
| Access (database) | NO | YES |
| Publisher (desktop publishing) | NO | YES |
| Number of applications | 5 apps | 7 apps |
| Licence type | Perpetual, 1 PC | Perpetual, 1 PC |
Which one to choose? If you use Word, Excel, PowerPoint and Outlook for everyday work, Standard is all you need. Choose Professional Plus if you need Access (databases) or Publisher (brochures, newsletters, catalogues).
The applications included in Office 2021
| Application | What it does | Included in |
|---|---|---|
| Word | Create and edit documents, reports, letters, CVs and professional templates with advanced formatting, styles and collaboration tools | Standard + Pro Plus |
| Excel | Spreadsheets with formulas, pivot tables, charts, data analysis tools, XLOOKUP, dynamic arrays and Power Query for handling large datasets | Standard + Pro Plus |
| PowerPoint | Design professional presentations with animations, transitions, slide recording and modern templates | Standard + Pro Plus |
| Outlook | Professional email client with calendar, contacts and task management. Supports multiple email accounts (Outlook.com, Gmail, IMAP, Exchange) | Standard + Pro Plus |
| OneNote | Digital notebook for organising notes, clipping web content, drawing and sharing notebooks across devices | Standard + Pro Plus |
| Access | Create and manage databases with forms, queries, reports and macros. Ideal for small business inventory, CRM and data management | Pro Plus only |
| Publisher | Desktop publishing for brochures, newsletters, business cards, flyers and catalogues with professional layout tools | Pro Plus only |
Office 2021 vs. Office 2024: which version to choose?
Office 2021 and Office 2024 are both perpetual licences (one-time payment, no subscription). The core applications and features are the same. Office 2024 adds minor interface improvements and a few new functions, but for the vast majority of users the difference in daily use is negligible:
| Feature | Office 2021 | Office 2024 |
|---|---|---|
| Word, Excel, PowerPoint, Outlook | YES | YES |
| OneNote | YES | YES |
| Access and Publisher (Pro Plus) | YES | YES (Access only, Publisher discontinued) |
| XLOOKUP, dynamic arrays in Excel | YES | YES |
| Licence type | Perpetual (one-time payment) | Perpetual (one-time payment) |
| Microsoft support | Security updates until October 2026 | Security updates until October 2029 |
| Interface | Modern ribbon (2021 design) | Updated ribbon (2024 design, minor refinements) |
| Price | More affordable | Higher price |
In short: Office 2021 gives you the same core applications (Word, Excel, PowerPoint, Outlook) at a lower price. If you want the longest possible support window or need the very latest interface updates, choose Office 2024. If you want the best value for money, Office 2021 is an excellent choice.
Office 2021 vs. Microsoft 365: perpetual licence vs. subscription
This is the most important comparison. Office 2021 and Microsoft 365 include the same applications, but the payment model is completely different:
| Aspect | Office 2021 | Microsoft 365 Personal |
|---|---|---|
| Payment model | One-time payment, yours for ever | $69.99 USD/year (or $6.99 USD/month) |
| 3-year cost | What you pay today (and nothing more) | ~$210 USD |
| 5-year cost | What you pay today (and nothing more) | ~$350 USD |
| Word, Excel, PowerPoint, Outlook | YES | YES |
| Automatic updates | Security updates only | Security + feature updates |
| Cloud storage | Not included (use OneDrive free 5 GB) | 1 TB OneDrive included |
| If you stop paying | You keep Office for ever | You lose access to Office apps |
The bottom line: If you do not need 1 TB of OneDrive or the very latest feature updates, Office 2021 with a one-time payment is significantly cheaper over time. Microsoft 365 charges $69.99 USD per year, every year. After just 3 years you will have spent over $210 USD — and you still would not own anything.
System requirements
| Requirement | Specification |
|---|---|
| Operating system | Windows 10 or Windows 11 (32-bit and 64-bit) |
| Processor | 1.6 GHz or faster (2-core) |
| RAM | 4 GB minimum |
| Hard drive | 4 GB of available space |
| Display | 1280 x 768 resolution or higher |
| Mac compatible | NO — This licence is for Windows only. For Mac, see Office for Mac |
| Internet | Required for activation only. Once activated, Office 2021 works fully offline |
How to install and activate Office 2021
Step 1: Purchase and receive your Product Key
Add Office 2021 to your cart, complete payment and receive your original Microsoft Product Key by email within minutes. We accept credit/debit cards and PayPal worldwide. We also accept local payment methods in 30+ countries: M-Pesa and Airtel Money in Kenya, GoPay, OVO, DANA, bank transfer and virtual account in Indonesia, FPX online banking and e-wallets in Malaysia, bank transfer and cards in Nigeria, and card or PayPal in the United Kingdom.
Step 2: Download Office from Microsoft
Download Office 2021 directly from the official Microsoft website using the link included in your delivery email. This ensures you always get the latest, genuine version of the software. Installation takes approximately 10–15 minutes.
Step 3: Activate with your Product Key
Open any Office application (Word, Excel, etc.) and enter your Product Key when prompted. Activation is online and instant through Microsoft's servers. Once activated, Office 2021 remains permanently active on your PC. It does not expire, does not need renewal and has no recurring payments.
Save more with our bundles
Combine Office 2021 with other products and save up to 30%:
| Bundle | What is included | Benefit |
|---|---|---|
| Windows 11 Pro + Office 2021 | Windows 11 Pro licence + Office 2021 Pro Plus licence (2 keys) | Up to 30% cheaper than buying separately |
| Office 2024 + Nitro PDF Pro | Office 2024 Pro Plus + Nitro PDF Pro editor (2 keys) | Complete office + PDF editing suite |
| Office 2024 Pro Plus | The latest perpetual version of Office for 1 PC | Longer support window (until 2029) |
For businesses and resellers
IT departments and businesses: Office 2021 with a perpetual licence is ideal for organisations that need a predictable, one-time cost without ongoing subscription management. Equip your entire team with official licences and an official invoice for your records.
Are you an IT company, computer shop or reseller? Access exclusive discounts of up to 30% across our entire catalogue. Available to resellers worldwide. Apply to the reseller programme
Frequently asked questions
Is it legal to buy Office 2021 from this shop?
Yes. The Court of Justice of the European Union ruling C-128/11 (UsedSoft v. Oracle, July 2012) established that reselling software licences is legal in the EU provided the original purchaser has deactivated their copy. La Tienda de las Licencias is a registered Spanish company operating under this legal framework, issuing official invoices and offering a lifetime guarantee on every licence.
Does the Office 2021 licence expire?
No. It is a permanent licence. Office 2021 activates permanently on your PC. There are no recurring payments, no renewals and no expiry date. You pay once and use it for ever.
Does Office 2021 work on Mac?
This licence is for Windows only (Windows 10 and Windows 11). We sell separate licences for Mac — see our Office for Mac category for available options.
What is the difference between Office 2021 Standard and Professional Plus?
Both include Word, Excel, PowerPoint, Outlook and OneNote. Professional Plus adds two extra applications: Access (databases) and Publisher (desktop publishing). If you only need Word, Excel, PowerPoint and Outlook, Standard is sufficient.
What is the difference between Office 2021 and Office 2024?
Both are perpetual licences with a one-time payment. The core applications and features are the same. Office 2024 adds minor interface refinements and has a longer support window (until 2029 vs 2026). Office 2021 offers the same daily functionality at a lower price.
What is the difference between Office 2021 and Microsoft 365?
They include the same applications (Word, Excel, PowerPoint, Outlook). The difference is the payment model. Office 2021 is a one-time purchase that you own for ever. Microsoft 365 is a subscription of $69.99 USD per year — and if you stop paying, you lose access to all Office applications. Office 2021 is significantly cheaper over time for users who do not need 1 TB OneDrive or continuous feature updates.
How many PCs can I install Office 2021 on?
The licence is for 1 PC. If you need Office on multiple computers, you can purchase additional licences or see our multi-PC bundles for volume savings.
Is the Product Key genuine?
Yes. You receive an original Microsoft Product Key. Office 2021 is downloaded from the official Microsoft website and activated through Microsoft's servers. The key is genuine and the activation is permanent.
Do you accept payments from Kenya, Nigeria, Indonesia and Malaysia?
Yes. We accept local payment methods in 30+ countries. In Kenya you can pay with M-Pesa, Airtel Money or card (KES). In Nigeria with bank transfer or card (NGN). In Indonesia with GoPay, OVO, DANA, bank transfer or virtual account (IDR). In Malaysia with FPX online banking, e-wallets or card (MYR). In the United Kingdom with credit/debit card or PayPal (GBP). Prices are shown in your local currency automatically.
Do you ship to the United Kingdom?
There is no physical shipment needed. All our licences are delivered digitally by email within minutes of payment confirmation. UK customers pay in GBP with credit/debit card or PayPal and receive the Product Key instantly.
Are there volume discounts or a reseller programme?
Yes. For IT companies, computer shops and resellers we offer discounts of up to 30% across our entire catalogue through the reseller programme. Available to resellers worldwide. Register at distribuidores.latiendadelaslicencias.com.
Specific References
Office 2021 Professional Plus for 1 Windows PC: the complete suite (Word, Excel, PowerPoint, Outlook, Access, OneNote and Publisher) with a perpetual license and a single payment, no subscription. The most affordable way to get full Office —with Publisher included, which Office 2024 no longer offers— plus your genuine Product Key by email instantly.
1 key = 1 Windows PC Includes Access & Publisher One-time payment Instant email delivery
Office 2021 or 2024? 2021 is cheaper and keeps Publisher; Office 2024 is the latest version, supported until 2029 (without Publisher).
Rated 9.8/10 on eKomi (Gold
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