How much should you tithe?

You should only tithe as much as you can afford. You should not impoverish yourself in order to give your money to a church.

Tithe is a Word used long ago to mean "a tenth". Tithes were paid to the church or to the Lord of the Manor. It meant that you should give one tenth of whatever you had, whether crops or animals or money. There were "tithe barns" in which the Lord of the Manor would store crops or hay which had been given to him.