Microsoft Office
Buy a genuine Microsoft Office product key for Office 2024, 2021, 2019, 2016, 2013 or 2010 in Professional Plus, Standard, Home and Business or Home and Student editions, for Windows and Mac. Every license here is a perpetual, one-time purchase with the license type stated on the product page, and your key arrives by email within minutes of payment.
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Showing all 20 results
Microsoft Office product key: every perpetual Office version in one place
This is the parent category for every Microsoft Office license we sell at Software in Store. It brings together six Office releases, from the current Office 2024 back to Office 2010, and every edition inside them: Professional Plus for the full desktop suite, Standard LTSC 2024 for organizations, Home and Business for small offices and Mac users, and Home and Student for writing, spreadsheets and presentations at home. Every product here is a perpetual license. You pay once, activate once, and the software keeps working on that computer with no monthly or yearly charge.
A Microsoft Office product key is the 25-character code that activates one specific edition and version of Office on one computer. It is not the same thing as a Microsoft 365 subscription, which renews on a schedule and stops working when payment stops. Every Microsoft Office key in this category is for perpetual desktop software, so if you are searching for an office product key that you buy one time and keep, you are in the right place.
The Office versions in this family
Use the child categories below to compare releases. Each page explains what the edition contains, how Microsoft's support dates affect it, which Windows or macOS versions it runs on, and which specific product we recommend for common situations.
- Office 2024: the current perpetual release. Office LTSC 2024 is supported by Microsoft until October 9, 2029. Available as Professional Plus, Standard LTSC, Home and Business for PC or Mac, and in bundles with Windows 11 Pro or with Visio and Project.
- Office 2021: the previous release and still the most widely deployed perpetual suite. Office LTSC 2021 mainstream support ends October 13, 2026. Sold as Professional Plus for 1 or 5 PCs, Home and Business for Mac, and in bundles.
- Office 2019: extended support ended October 14, 2025, so it runs without further security updates. We carry Professional Plus for 1 or 5 PCs, Home and Student, and Home and Business for Mac.
- Office 2016: extended support also ended October 14, 2025. It remains the newest Office release that installs on Windows 7 and Windows 8.1. Professional Plus, Home and Student and Home and Business for Mac are available.
- Office 2013 and Office 2010: legacy suites for older hardware and for compatibility with old macros, templates and add-ins that never made the jump to newer versions.
Editions compared: which apps come with which Office edition
For most buyers the edition matters more than the year. The table shows what each edition includes across the releases we carry. Note that Publisher ships in Professional Plus for 2021, 2019 and 2016 but was discontinued for the 2024 release, and that Home and Student never includes Outlook.
| Edition | Apps included | Platform | Typical buyer |
|---|---|---|---|
| Professional Plus 2024 | Word, Excel, PowerPoint, Outlook, OneNote, Access | Windows | Business users and anyone who needs Access |
| Professional Plus 2021, 2019, 2016 | Word, Excel, PowerPoint, Outlook, OneNote, Access, Publisher | Windows | Same as above, plus Publisher users |
| Standard LTSC 2024 | Word, Excel, PowerPoint, Outlook, OneNote | Windows | Organizations that do not need Access |
| Home and Business | Word, Excel, PowerPoint, Outlook, OneNote | PC or Mac (2024); Mac (2021, 2019, 2016) | Home offices and Mac users who need Outlook |
| Home and Student | Word, Excel, PowerPoint, OneNote | Windows | Students and home use without Outlook |
Support dates at a glance
| Version | Microsoft support status | What it means for you |
|---|---|---|
| Office 2024 | Supported until October 9, 2029 | Security updates for several more years |
| Office 2021 | Mainstream support ends October 13, 2026 | Updates continue through October 2026 |
| Office 2019 | Extended support ended October 14, 2025 | Works normally, no new security patches |
| Office 2016 | Extended support ended October 14, 2025 | Works normally, only choice for Windows 7 and 8.1 |
| Office 2013 and 2010 | Support ended | Legacy compatibility only |
Which Office edition should I choose?
Start with the apps you actually open. If Access or the full Outlook desktop client is on the list, you want Professional Plus. If you only write documents and build spreadsheets, Home and Student covers it. If you are on a Mac, Home and Business is the edition to look at, because Professional Plus is Windows only. Then pick the year based on how long you want Microsoft security updates to continue.
- Microsoft Office 2024 Professional Plus for 1 PC is our default recommendation for a Windows computer you plan to keep for years. It has the longest support runway of any perpetual Office and includes Access.
- Microsoft Office 2024 Home & Business for 1 PC or Mac is the right pick when Outlook matters but Access does not, and it is the only 2024 edition that installs on macOS.
- Microsoft Office 2021 Professional Plus for 1 PC remains the choice for anyone who still relies on Publisher, since Publisher was dropped from Office 2024.
- For a study computer on a tight budget, Office 2019 Home and Student is still in stock, and Office 2016 Professional Plus is the answer for a PC that cannot leave Windows 7 or 8.1.
How activation and delivery work
Every Office product key we sell is delivered digitally. There is no box and no disc, and nothing to wait for in the mail.
- Place the order and pay by card, Apple Pay or Google Pay through our encrypted, PCI-compliant checkout. We never see your card number.
- Within minutes of payment, 7 days a week, an email arrives with the 25-character key, the official Microsoft download link for your exact edition, and a short installation guide. The same key is saved under My Account on our site.
- Download the installer from the Microsoft link, run it, and enter the key when prompted. Depending on the edition, setup may ask you to sign in with a Microsoft account to link the license, which makes reinstalling later easier.
- If Microsoft asks for phone activation, send us the Installation ID shown on screen and our team returns the Confirmation ID. A person answers support email 7 days a week at support@softwareinstore.com.
- If a key cannot be activated and support cannot fix it, you get a replacement key or a full refund under our 30-day money-back guarantee.
Retail, OEM or volume: what the license type means for Office
We sell retail, OEM and volume Office licenses, and the type is stated on every product page so you can decide before you buy. A retail key can be removed from one computer and activated on a new one, which is what most individuals want. An OEM key stays with the first PC it activates on. A volume key, sometimes called a MAK key, has a limited number of activations and is designed for organizations that deploy the same suite across several machines. The 5 PC products in the Office 2021, 2019 and 2016 categories are meant for exactly that situation: one key, several installs, one order.
Windows and Mac requirements in brief
Office 2024 and Office 2021 install on Windows 10 or Windows 11. Because Windows 10 support ended on October 14, 2025, we suggest pairing a new Office license with Windows 11 where the hardware allows it, and our Office plus Windows 11 Pro bundles exist for that reason. Office 2019 also requires Windows 10 or later. Office 2016 is the newest release that still runs on Windows 7 SP1 and Windows 8.1. The Mac editions of Home and Business require a supported macOS version, and each product page lists the current requirement.
Frequently asked questions about Microsoft Office keys
Is a Microsoft Office product key the same as a Microsoft 365 key?
No. A Microsoft Office product key activates a perpetual version such as Office 2024 or Office 2021 on one computer, and it does not expire. A Microsoft 365 key adds time to a subscription that includes cloud storage and continuous feature updates, and the apps stop working when the subscription lapses. Everything in this category is perpetual desktop software, a one-time purchase with no renewal. If you specifically need Microsoft 365, we do not sell it, and we would rather tell you that than sell you the wrong product.
Can I use one Office key on more than one computer?
One key activates one PC unless the product name says otherwise. Several products in the Office 2021, 2019 and 2016 categories are sold as 5 PC licenses, and the product page states the number of installs the key supports. Installing a 1 PC key on a second computer will fail activation, and Microsoft may deactivate the first install. If you have several machines, choose a 5 PC product or buy the matching number of single keys, which keeps every install genuine and covered by our guarantee.
Do I get a disc or a download?
A download. Your delivery email contains the official Microsoft download link for the exact edition and version you bought, so the installer comes straight from Microsoft, not from us or from a third-party mirror. Installers for Office 2024, 2021 and 2019 are click-to-run packages that download the rest of the suite during setup, so an internet connection is needed. If you prefer offline media, the Microsoft download page for most versions offers an offline installer option as well.
Can I move my Office key to a new computer later?
It depends on the license type, which is stated on the product page. A retail key can be uninstalled from the old computer and activated on a new one. An OEM key is tied to the first PC it activates on and cannot be transferred. A volume key has a fixed activation count, so each new install uses one of those activations. If you plan to replace your computer within the life of the software, choose a retail product and keep your delivery email and My Account record so the key is easy to find.
Which Office version should I buy in 2026?
For a new Windows 11 PC, Office 2024 Professional Plus gives you the longest security update window, through October 9, 2029. Office 2021 Professional Plus is the right choice if you still need Publisher, and it receives updates through October 13, 2026. Office 2019 and Office 2016 are no longer patched by Microsoft but remain fully functional and are the practical options for older hardware, with Office 2016 the only modern suite that installs on Windows 7 and 8.1. Every version is a genuine perpetual license.
Whichever release you choose, the process is the same: order, receive your key by email within minutes, download from Microsoft and activate. Read how it works for a step-by-step walkthrough, or browse our standalone Office apps if you only need Word, Excel, Outlook, Access, Visio or Project on its own.