Foundations Act Article 23

The foundation may use the fund to make up its deficit only if it remains insufficient after the foundation shall have used its assets other than the fund to make up the deficit.
中文原文 財團法人法第23條
財團法人於以基金以外之財產填補短絀,仍有不足時,得以基金填補之。

English translation for reference only; the Chinese text prevails. Not legal advice.