Deviations from the tax bill

So I have now done for the second time the tax return with this software and I will operate in the future with another software company. I freely admit to be quite a layman in the regard. But even for laymen the software should be, right? What bothers me most (apart from some glitches in the operation that are taste and a matter of practice, however, and not be included in this review) are the differences between the calculated result and the subsequent actual decision. Last year I saved a copy of the declaration and as long as what has changed on the data to the forecast agreed (basically you have to round up some income tax card data manually because the program this is not 1: 1 as the tax office handles). This year I propose me around with a KV-contribution refunds, which the FA always calculated differently than the program. The automatic comparison of the electronic communication and delivery of supplies louder unusable entries (the mapping is really very buggy). Anyone who wants to learn from their own mistakes and also to understand how the FA anticipates, so who looks exactly decision in the (potentially different), I can not put your heart into the program! Who just his dates and wants to live with the simple then what the FA returns, which can use the program well.