The HVUT, or Heavy Vehicle Use Tax, is a yearly tax paid by truck drivers or owners of trucking companies. It refers drivers operating large vehicles on our nation's highway, and a number of the money goes towards maintaining roads, alleviating congestion, keeping the roads safe, and funding new contracts. There's a change between, "gross income," and "taxable income." Gross income is what amount you can certainly make. taxable income is what federal government bases their taxes everythin...