I love when a prospective client tells me that they looked up the child support guidelines online and that they know how much to pay. Lawyers pay a lot of money to use the child support guidelines and it would be pointless to do so if they can just use it for free like everyone else! The reason lawyers pay for the child support guidelines software is because they want to use the real, accurate guidelines. The guidelines change quite often based upon taxes and other issues. The number that you get off of on online calculator is likely way off. Thus, it is probably a huge waste of time to even take the time to use these online calculators as it may not even give you a rough idea as to what your child support may be. Instead, leave it to your attorney to tell you what your child support figure will be.