Microsoft 365 Cost: Personal, Family, and Business Per-Seat Math
Microsoft 365 Personal is commonly about $7–$10/month (~$84–$120/year) and Family about $13–$17/month for up to six users—annual prepay often saves versus monthly.
Price note (October 2026): See microsoft.com/microsoft-365/buy/compare-all-microsoft-365-products—retail keys and OEM Office still exist outside subscription.
Consumer plans
| Plan | Typical monthly | ×12 | Includes |
|---|---|---|---|
| Personal | ~$9.99 | ~$120 | 1 user, 1 TB OneDrive |
| Family | ~$12.99 | ~$156 | Up to 6 users, 1 TB each |
Value the storage separately
1 TB OneDrive has a standalone street price—if you only need cloud backup, a storage-only plan might beat full 365. If you need Word/Excel on desktop, bundle usually wins.
Business math
Microsoft 365 Business Basic vs Standard adds desktop apps per seat—multiply quoted seat price by headcount × 12 for true software OPEX.
Price hikes
Microsoft increased consumer 365 pricing in 2025 announcements for some regions—check renewal emails for grandfathered accounts.
Step-by-step: compare plans like an accountant
- List every tier you might realistically use Ignore enterprise or student tiers unless you qualify. Note ads vs ad-free and device limits.
- Multiply monthly by 12 That is your true annual cost before tax. Add 6–10% if your state taxes streaming.
- Add hidden line items 4K fees, extra member slots, cloud storage add-ons, and in-app purchases belong in the total.
- Model downgrade paths If canceling, check whether a cheaper tier still covers your use case—sometimes that beats churn.
Frequently asked questions
Does Microsoft 365 charge tax on top of the advertised price?
In many U.S. states you will see sales tax on digital subscriptions. The pre-tax plan price is what marketing pages usually show—check your receipt for the all-in monthly total.
Is annual billing always cheaper?
Only when the provider offers a true annual plan or prepaid gift cards at a discount. Month-to-month multiplied by 12 is the baseline; compare that to any annual offer line by line.