Civil Code Article 817
This English translation was last updated on 2021-01-20, but the Chinese text was amended on 2026-08-17. Later amendments may not be reflected in the translation — please refer to the Chinese text.
When several persons have the ownership of a thing in proportion to their own respective shares, they are co-owners.If the shares to which each co-owner is entitled are not known, they are presumed to be equal.
中文原文 民法第817條
數人按其應有部分，對於一物有所有權者，為共有人。
各共有人之應有部分不明者，推定其為均等。
各共有人之應有部分不明者，推定其為均等。