Do the Belgians have a church tax like the Germans do? In order to get out of paying the tax in Germany you have to deregister from your church.
Switzerland had a similar system, you have to let your employer know what church to give your money to or declare you were not affiliated with the Catholic or another recognized church. Some people I worked with did not participate but still let the church tax be sent rather than take their names off the rolls, which apparently had stiff consequences with the church if they ever changed their mind.
A few weeks back I attended a Greek festival at the big Orthodox church. When the pastor was giving his tour of the sanctuary, he mentioned that the churches in Greece were all funded by the government, and then gave thanks that his church paid its own bills and was beholden only to Christ.
As bad as it is getting here, at least here those beholden only to Christ are separating themselves both from the heretics and from the government, from Orthodox to LCMS to ARP to Global Methodists and Venture Church Network--and if the successor to Pope Francis is a carbon copy, it wouldn't surprise me if RCs in America split in two as well. There is going to be a witness to Christ here that may be persecuted and martyred, but the gates of hell will not prevail against it.