Q. Can I use my Maaser money for Kappores?
A. Piskei Halochos (23: 9, p.283) rules that one may not use Maaser money, since performing Kappores is in our days an accepted tradition that is widely kept, and is tantamount to relieving an obligation by using Maaser money, which is not permitted.
Horav Shlomo Miller’s Shlit’a opinion is similar.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a