Yaaleh VeYavo

Yaaleh Vyavo on Rosh Chodesh

1. One should say Yaaleh VeYavo during Retzeh of Shemona Esreh.

At Arvit

1. If one forgets Yaaleh VeYavo at Mariv/Arvit once one finished the Bracha of Retzeh one doesn’t return to the Bracha or repeat Shemona Esreh. The same is true whether it is the first or second day of Rosh Chodesh.
2. If one didn't say Yaaleh VeYacov in Shacharit or Mincha one must repeat Shemona Esreh.
3. If one forgot altogether to say Yaaleh VeYavo in Maariv one doesn’t repeat Shemona Esreh.
4. If one forgot to say Yaaleh VeYavo and remembered before Baruch Atta Hashem one should go back to Yaaleh VeYavo and continue from there. However if one remembers after Baruch Atta Hashem then one doesn’t go back.

Shacharit and Mincha

1. If one forgot Yaaleh VeYavo and remembers:

• before saying Baruch Atta Hashem one should return to Yaaleh VeYavo
• after saying Baruch Atta Hashem one conclude the Bracha with the words “Lamdeni Chukecha” and then return to Yaaleh VeYavo.
• after saying HaMachzir…LeTzion but didn’t begin Modim, one should say Yaaleh VeYavo right there and continue with Modim.
• after beginning Modim before Yeheu LeRatzon one should return to Retzah and continue from there.

1. If one forgot altogether to say Yaaleh VeYavo in Shacharit or Mincha one must repeat Shemona Esreh.
2. If one forgot to say Yaaleh VeYavo in Mincha of Rosh Chodesh and only remembers at night (after Rosh Chodesh) one should say two Shemona Esrehs of Maariv (without Yaaleh VeYavo) as Tashlumin and the second one should be said with a stipulation of being a voluntary prayer (if I’m obligated let this be a obligatory prayer and if not let it be a voluntary one).
3. If someone is in doubt whether or not one said Yaaleh VeYavo then one should repeat Shemona Esreh.
4. If someone thought to say Yaaleh VeYavo before Davening and then a long time afterwards remembers vaguely then one is assumed to have fulfilled one’s obligation.
5. However, if one remembered immediately afterwards then we assume that one didn’t say Yaaleh VeYavo.
6. If one forgot to say Yaaleh Veyavo in Shacharit and then remembers at the beginning of Mussaf (within first three Brachot) one should continue with Shacharit and then say Mussah.
7. If one already said Mussaf, it’s a dispute and one should make a stipulation that if I’m obligated to say another Tefillah it should count as an obligatory Tefillah and if not it should be considered a nedavah.

Yaaleh VeYavo in Birkat HaMazon

1. Regarding forgetting Yaaleh VeYavo in Benching see Adding Retzeh and Yaaleh VeYavo