More and more Polish farmers are interested in leaving the flat-rate status. It concerns particularly the farmers making investments, who may recover VAT input after they choose the system of VAT under general principles. The examples of this effect are the agricultural holdings of Polish FADN. The article presents the results of 1888 farms with system of VAT under general principles. The farms constitute the panel in 2010-2013 which is grouped according to types of farming. In all groups of farms numerous investments were made, which was the effect of the income obtained and the investment subsidies obtained. VAT balance on investments has shown annually negative values (to be refunded) in all groups. In case of current activity similarly, excepting the “granivores” farms, where there was a surplus of VAT due from the year 2011. However, the total VAT balance was negative each year and in case of all types of farming the farmers recovered VAT overpaid. In the type of farming “granivores”, VAT under general principles system was the least profitable, because of the higher VAT rate (8%) on sold products (meat) and at the same time growing sale every year. Increase of production as well as sale, while slowing down the investments in case of any type of farming, will result in a reduction of the VAT amount to be refunded. In this situation, the farmer may return to the flat-rate status after the VAT paid adjustment has been made.