Office 2021 vs 2024 vs Microsoft 365: Which Is Worth Buying?
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There are three ways to get Word, Excel and PowerPoint in 2026, and Microsoft would prefer you pick the most expensive one. Here's the honest comparison.
The three options in one table
| Office 2021 | Office 2024 | Microsoft 365 | |
|---|---|---|---|
| Payment | One-time | One-time | Every year, forever |
| License | Lifetime, 1 PC/Mac | Lifetime, 1 PC/Mac | Subscription, up to 6 users |
| Word, Excel, PowerPoint, Outlook | ✓ | ✓ | ✓ |
| Feature updates | Security only | Security only | Continuous |
| Copilot AI | ✗ | ✗ | Add-on |
| OneDrive storage | ✗ | ✗ | 1 TB/user |
| Cost over 5 years | Lowest | Low | Highest by far |
What actually changed in Office 2024
Office 2024 brings a refreshed interface matching Windows 11, dynamic charts and new text functions in Excel (GROUPBY, PIVOTBY, REGEX functions), improved meeting scheduling in Outlook, and better performance on modern hardware. It is an evolution, not a revolution — a 2021 user sitting at a 2024 install will find everything where they left it.
Who should buy which
Office 2021 — the value pick. If you write documents, build ordinary spreadsheets and present slides, nothing in 2024 changes your day. It's the same perpetual license at the lowest price while stock lasts. Microsoft's security updates for Office 2021 end on 13 October 2026; our Office 2021 end of life guide explains what stops and what keeps working.
Office 2024 — the sweet spot for new setups. Newest perpetual feature set, longest support runway (into the 2030s), still a one-time payment.
Microsoft 365 — worth it only if you genuinely use its extras: 1 TB OneDrive, multi-device installs for a family, or Copilot. If you don't, you're renting software you could own; over five years a subscription costs several times a lifetime key. If you do subscribe, our Microsoft 365 Family vs Personal guide shows which plan fits your household.
For every current plan price, see how much Microsoft 365 costs in 2026.
Home & Business vs Professional — in 60 seconds
Home & Business = Word, Excel, PowerPoint, Outlook, licensed for business use — and it's the only perpetual edition for Mac. Professional Plus (PC only) adds Access and Publisher and is typically the cheaper key. Mac user → Home & Business for Mac. PC user who wants everything → Professional Plus.
All Office keys at Nerdused are genuine lifetime licenses: browse Office 2021 and 2024 keys — instant email delivery, 30-day money-back guarantee.
Written by Jen
Technical Support Advisor at Nerdused with 10+ years of Microsoft product experience.
Last updated 19 October 2026 · Meet the support team