In our note Which Canadian charities spent money on foreign activities in 2018 and how much did they spend we recently reviewed the T3010 information for 2018.   It provides a list of Canadian charities that spent the most of foreign activities.  The total amount claimed is about $3,756,814,368 or 3.75B.  Keep in mind that additional funds are spent by Canadian charities for example when making gifts to “qualified donees” that are foreign universities registered with CRA or UN agencies and they are not included in this document.