Can I use my ma’aser kesafim, tithes from my income, to contribute to my synagogue’s building campaign, and can I use it to pay my shul’s membership dues?

The idea of tithing is alluded to in this week’s parasha.  We are told that Yitzchak, “Sowed in that land and received in that year a hundredfold, and God blessed him” (Gen. 26:12), on which Rashi, quoting Breishit Rabbah, comments: “It produced 100 times what he had estimated; and this estimate was for the sake of ma’asrot, tithes.”  Indeed, Rambam (Laws of Kings 1:9) attributes the pre-Sinaitic practice of tithing to Yitzchak based on

Can I use my ma’aser kesafim, tithes from my income, to contribute to my synagogue’s building campaign, and can I use it to pay my shul’s membership dues?

Giving money to the building of a house of God is the theme of this week’s parasha:

Speak to the Children of Israel, and they that bring me an offering (terumah); from every person whose heart moves him to give, you shall take My offering (Ex. 25:2).

The second half of Shemot, in fact, is devoted almost exclusively to this project – the building of the Mishkan and the contributions in time, talent, and wealth that

Can I use my ma’aser kesafim, tithes from my income, towards pre-existing mitzvah or tzedakah obligations, such as my synagogue dues, my children’s day school tuition, or pledges to charity that I have already made?  A mishna from Menachot touches on an answer to this question.