When one buys a new Talis gadol, does one make the bracha of shehechiyanu?
Answer:
Yes, a Tallis Gadol is an important and fairly expensive item of “clothing,” and shehecheyanu is generally recited at the joy of buying one.
In fact, some (in particular Sefardim) have the custom of buying a new Tallis for a wedding in order to recite the Shehecheyanu berachah under the Chuppah.
Best wishes.
