Capital Asset ?

[RWG1950]

I have a customer that inherited (about 15 years ago) her deceased parents share of ownership in a retirement residential
co-op building - an apartment. She plans to sell her interest share in 2025.
The office manager of the co-op told her that this is treated differently for tax purposes.
Not sure how this sale would be treated differently than any other capital asset.
Thanks for comments

[Rapid Robert]

If you live in a cooperative, you don’t own your apartment. Instead, a corporation owns the apartments and you are a tenant-stockholder in the cooperative housing corporation. (Pub 527)

I suspect you might have to do some digging to figure out what the adjusted basis of the stock is, since some but not all the coop expenses are considered capital.

[terryats]

Don't forget about section 121, as I believe co-op shareholders qualify if used as main home