Very simple to use, at least for a simple return. One irritant is the forms are not like the IRS forms. When you look at the form, you see a value in a worksheet, but not an actual image of the IRS form with the value. This is irritating if you paid estimated taxes, and know you should see a credit on the 1040, but you can’t figure out where they put the form you actually have to enter the dates and amounts. If you look up 1040-ES under help, you find out how to calculate next years estimated taxes, not where the estimated taxes for the year you are working on are put in