Do reward points expire?

Any points you are rewarded expire after 12 months.

points you buy do not expire.

Hello MuKs DeEp,

You can see a complete history of your Credit and deposit events from the MyStatement on the MyRewards page. You can then use the dates listed for your deposits to see their deposit as currency from your commerce page at (https://commerce.microsoft.com/),
where they will be listed as a refund with a negative amount. You had a deposit of 5500 Credits in January 2017 that would have expired if you did not spend it. Per Microsoft policy, promotional currency like Rewards Credits expires after one year in your
Microsoft Account.

Credits expire 1 year after they have been deposited.

Rewards points do expire along with any promotional points

After a certain period

They don't expire the ones you paid for do they? And would points from Bing rewards count as paid points or not?