Siman 525
Presented here for study, not as a practical ruling. The Shulchan Aruch rules by Sephardi custom, the Rema's glosses by Ashkenazi custom, and the Kitzur follows Ashkenazi custom. For a practical question, ask your rabbi.
א הַלְוָאַת יוֹם טוֹב נִתְּנָה לִתָּבַע בְּדִין וְעַיֵּן לְעֵיל סִימָן ש"ז סָעִיף י"א.
1 The Law of Lending on a holiday, 2 Seifim: A loan made on a holiday can be claimed (and see above chapter 307 paragraph 11).
ב גַּבָּאֵי צְדָקָה גּוֹבִין מֵהַחֲצֵרוֹת בְּיוֹם טוֹב, אֲבָל לֹא יַכְרִיזוּ כְּדֶרֶךְ שֶׁמַּכְרִיזִין בַּחֹל אֶלָּא גּוֹבִין בְּצִנְעָא וְנוֹתְנִים לְתוֹךְ חֵיקָם וּמְחַלְּקִים לְכָל שְׁכוּנָה וּשְׁכוּנָה בִּפְנֵי עַצְמָהּ.
2 The charity collectors may collect from the yards on a holiday, but they should not make announcements as are made during the week. Rather, they should collect quietly, put it in their bag, and distribute it to each neighborhood individually.