7. Catholic tax
In Germany, the church is both a legal tax-raising statutory body as well as a community of faith. A Catholic who objects to paying church tax has to formally leave the church, and is subsequently excommunicated. During the last few decades, the Roman Catholic Church has lost significant number of adherents due to this tax.
The Church tax is also to be paid in Austria and Switzerland, the same principles apply (if you don' want to pay, you have to excommunicate). Both Catholics and Protestants have to pay. Most of the money is used to support the Churches Welfare and charity programs. (Thanks, Julian!)