Tachnun is not recited on the 15th of Av, nor during the Mincha beforehand.It is forbidden to fast on the 15th of Av, even a Chosson and Kallah.The 15th of Av is an opportune time for a joyous Farbrengen and Hachlatos to increase Torah study.One should continue to participate in a Siyum and learn Hilchos Beis Habechira every day until (and including) the 15th of Av.

A guide to the customs of the 15th of Av, including the omission of Tachnun, fasting prohibitions, and the importance of joyous Farbrengens and Torah study.

15th of Av

A comprehensive guide to the laws and customs of Tishah B'Av for the year 5784, according to Minhag Chabad.