I highly recommend this program around. Also, I recommend anyone to register necessarily. This has the advantage, you get support for the product, which is really great at WISO. For me, there was the problem of large deviations between the reimbursement amount, which WISO has identified and has determined what the tax office. Message to the Techn. Support was answered after 1-2 days with a very detailed response, which lies no more questions open and revealed the failure of the tax office.