It is true: it is possible to prepare your tax return alone. The question is though, how much time and energy would it cost you to prepare it? Even though it feels as if collecting all the information and documents is the main part of the work, it can make a huge difference how you fill in the return. Small ticks (or missing ticks) can mean a lot of money. The forms and the wizard functions don’t tell you all possible deductions. So especially if you have better use for your time, an expert is faster, doesn’t have to wonder how to treat this particular situation you’ve been dwelling on for hours and ensures you get the best from the process.