The paper examines the VAT gap estimated on the basis of VAT tax returns. The assessment of tax gap dependence is examined based on macroeconomic influences and the measures of the Slovenian fiscal administration. Regarding the latter, the number of audits being performed and the effects of audit activity (tax yield) have been considered. The results of the analysis support the thesis that the tax gap is reduced in conditions of economic growth. The fiscal administration measures showed the desired effect. An important factor lowering the gap was proven to be the number of (VAT) audits. A similar impact on the tax gap, although considerably smaller, was found to have effects of an audit. Audit planning might be considered as guidance for fiscal policies to lower the tax gap.
Timotej Jagrič, Tomaž Lešnik, Stefan O. Grbenic and Vita Jagrič
We study the impact of selected characteristics of Slovenian tax residents with income from work with source in other countries on their fulfilment of tax obligations from this income. We received anonymised data for the year 2015 from Slovenian Financial administration, which includes selected taxation data, some demographic variables as well as some data from other registers. On the sample of 9016 taxpayers of personal income tax from the group with income from work with source in other countries we found that with knowledge of some characteristics of taxpayers it is possible to discern a higher or lower probability of fulfilment of their tax obligations. Tools as the here presented model can help to increase the effectiveness of targeted inspection taxation supervision. The analysis has shown that groups of taxpayers with common characteristics share also a common pattern of the fulfilment of their tax obligations.