Shulchan Arukh Orach Chayim · Siman 269

English

Laws of kiddush in the synagogue. Containing 1 paragraph It is the custom to recite Kiddush in the synagogue. The one who recites should not taste the wine of Kiddush but gives it to a minor to taste because Kiddush should be recited only at the place where the meal is eaten. From the outset this was ordained only for the sake of [communal] guests who eat and drink in the synagogue, so that they may fulfill their obligation. And today, even though [communal] guests do not eat and drink in the synagogue, the ordinance is not void. That is the reason of those places who still recite Kiddush in the synagogue. But it is better to ordain NOT to recite Kiddush in the synagogue, and such is the custom in the Land of Israel. Rema: It is the custom to stand when reciting Kiddush in the synagogue.