The purpose of this study is to analyse the labour market for female immigrant nurses in Canada and to address the following question: does a nurse with foreign educational credentials have the same earning potential compared with a nurse who was educated in Canada? This is part of a more general question on economic discrimination against immigrants. Using data from the confidential master files of the 2001 Canadian Census on Individuals, this study finds that nurses educated outside of Canada do face wage penalties. This indicates that their credentials might not be fully recognized and/or valued in the Canadian labour market for registered nurses. This result is important to the business world since it suggests the possibility of a general finding that immigrant credentials may not be readily transferable and compensated in a new country. This can result in qualified workers not being able to gain meaningful employment and this source of labour might not be adequately used to fill jobs in industries facing labour shortages.