This report presents estimates of the tax gap for Denmark for the period 2008-12. There are two main components to the RA-GAP methodology for estimating the VAT gap: 1) estimate the potential VAT collections for a given period; and 2) determine the accrued VAT collections for that period. The...

This report presents the results of applying the Revenue Administration Gap Analysis Program (RA-GAP) value-added tax (VAT) gap estimation methodology1 to Poland for the period 2010-16. The RA-GAP methodology employs a top-down approach for estimating the potential VAT base, using statistical...

This Technical Assistance Report presents the estimates of tax gaps for general sales tax (GST) and corporate income tax in Costa Rica. The estimated GST compliance gap in Costa Rica increased from 29 percent in 2012 to 31 percent in 2016. The compliance gap in 2016 was equivalent to 1.9 percent...