How do Islamic tax rates compare to Christian tax rates?
There is no such thing as a Christian tax rate. Jesus said to render unto Caesar what is Caesar’s (Matthew 22:21). Taxation was despised in New Testament times, although Jesus believed that tax collectors like Matthew could be saved by renouncing the sin and corruption endemic to tax farming. Voluntary Christian tithing is traditionally regarded as one-tenth of your income. Islamic law prescribes different tax rates for different concepts (2.5 percent of one’s liquid assets, 10 percent of one’s harvest, and 20 percent of ones profits [among Shias], etc) so it is difficult to draw a direct comparison of rates.