Due to political conformation of Colombia and the administrative autonomy of the territorial entities, each one has the power to manage its resources, thus, one by one determines through the Income Tax Code the elements of the municipal taxes and the procedures that will govern the performance of municipal taxpayers. Our team has developed compliance models and automatic determination systems focusing its efforts on the compilation and constant updating of the Municipal Income Tax Codes, the forms and registration processes, as well as the applicable to compliance with the obligation to transmit municipal magnetic media reports.