I want to introduce a solution for California trucking companies which is connected with IFTA California fuel tax form filing. There can be many problems connected with IFTA tax calculations. In this situation it's good to hire a special company or tax professional, but in my opinion the best option is to calculate it using the net. There is a very useful website called www.ifta.biz. It contains a special on line application which can calculate the fuel tax in a few minutes for a low price.