As I informed you in my previous article. transportation companies have to pay fuel tax. Not paying it or having mistakes in tax form can cause problems with trucking and with the law. Fortunately there are many methods for dealing with such mistakes. You can hire a special worker, but it's an expensive option for firms that are earning a lot of money. There are also special companies that can help you to file your state form. I think that the besst option is to use an application placed on www.ifta.biz. It's a very cheap option.