This paper provides a novel assessment of how the World Inequality Database (WID) top incomeadjustment applied by Blanchet, Chancel, and Gethin (2021) to European Union Statistics on Incomeand Living Conditions (EU-SILC) data for 26 countries over 2003–2017 for Distributional NationalAccounts purposes affects inequality in equivalized gross and disposable household income. On average,the Gini is increased by around 2.4 points for both gross and disposable income, with notable differencesacross countries but limited impact on trends. EU-SILC countries that rely on administrative registerdata see relatively small effects on inequality. Comparing with two other recent studies, differences inimpacts on measured inequality depend less on the adjustment method and more on whether externaldata sources are used.