Ever wonder how much of your donations to charity are gobbled up by administrative costs? We looked at Canada’s 40 largest charities, and found the ones with the highest and lowest percentages of revenue used for managerial, administrative and fundraising expenses, according to Canada Revenue Agency returns.

When asked why their administrative costs are so high, both the Heart and Stroke Foundation of Ontario and the Canadian Cancer Society’s Ontario division said their expensive fundraising lotteries were to blame. But they added that the lotteries are great investments because they pay for themselves and bring in lots of extra revenue.

Below is a list of Canada’s 40 biggest charities, ranked by administrative costs.

UPDATES: Chart is now sorted by % of revenue spent on admin., fundraising and management. The revenue figure and percentage of administrative, fundraising and management costs for Shepherd’s Care Foundation were incorrect and have been updated.

Charity
 % of revenue  spent on admin., fundraising & mgmt. Revenue
Heart And Stroke Foundation Of Ontario 50 $135,018,528
Multiple Sclerosis Society of Canada 48 $30,480,416
Canadian Cancer Society Ontario Division 43 $116,621,000
Canadian Cancer Society B.C. and Yukon Division 42 $33,406,883
Canadian Breast Cancer Foundation 38 $52,973,959
The Canadian National Institute For The Blind 29 $119,378,994
Canadian Diabetes Association 28 $78,003,511
BC Cancer Foundation 23 $49,840,539
Canadian UNICEF Committee 22 $59,267,950
Ducks Unlimited Canada 21 $97,847,037
The Salvation Army Headquarters 19 $155,783,636
Calgary YMCA 19 $28,405,018
World Vision Canada 18 $381,831,725
Doctors Without Borders Canada 18 $28,599,061
The Canadian Red Cross Society 17 $253,196,921
United Israel Appeal Of Canada Inc 16 $70,459,967
Compassion Canada 15 $29,509,117
Victorian Order Of Nurses For Canada – Ontario Branch 15 $109,521,678
Canadian Catholic Organization for Development & Peace 14 $29,855,539
Christian Children’s Fund Of Canada 14 $52,926,051
Les YMCE du Québec 11 $38,631,510
YMCA of Greater Vancouver 11 $29,842,711
Société D’Habitation et de Développement de Montréal 10 $88,256,262
Plan International Canada Inc. 10 $94,259,262
World University Service of Canada 10 $31,051,776
Shepherd’s Care Foundation 10 $26,547,331
Oxfam-Quebec 9 $32,750,877
The War Amputations of Canada 9 $33,411,154
YMCA Of Greater Toronto 9 $125,841,256
YMCA of Edmonton 8 $29,194,193
The Nature Conservancy Of Canada 7 $160,691,211
The Samaritan’s Purse – Canada 7 $44,271,091
National Cancer Institute Of Canada 7 $66,561,596
Canadian Cancer Society 6 $59,630,228
Goodwill Industries of Toronto 6 $29,063,820
Heart And Stroke Foundation of Canada 5 $33,884,928
Care Canada 4 $138,386,559
Mennonite Central Committee Canada 4 $43,973,942
Aga Khan Foundation Canada 3 $116,087,864
Help Eliminate Disease and Addiction Canada 3 $60,691,943