Objectives To create a questionnaire able to explore changes in abortion services, workforce, and clinical practices compared to our 2012 Canadian survey, particularly in relationship to the 2017 introduction of mifepristone medical abortion and updated SOGC clinical guidelines. We aimed to create a cross-sectional online survey capturing demographics, clinical care and provider experiences among healthcare professionals providing abortion care either independently or in collaborative care agreements. Methods After completing a literature search, we held expert working-group meetings to revise the 2012 survey instrument. We convened expert focus groups across Canada engaging clinicians and researchers from many sectors, and subsequently piloted the survey instrument. Results We held 7 expert working groups of 5–10 participants each. Input from participants including family physicians, obstetricians & gynaecologists, maternal–fetal–medicine specialists, midwives, nurses, and researchers ensured relevant and concise questions. Due to the complexity of some of the identified topics, such as interdisciplinary collaboration and differences between provinces, some of the survey sections underwent an iterative process of meetings and revisions until we reached consensus on constructs to include. The resulting instrument underwent pilot testing among additional experts representing the study population. We confirmed content validity, clarity of language and usability of the survey instrument. Conclusions The new national survey instrument is the product of a rigorous revision and testing process. We plan to implement the survey in 2020 to assess practice factors and their relationship to recent SOGC guidelines. To create a questionnaire able to explore changes in abortion services, workforce, and clinical practices compared to our 2012 Canadian survey, particularly in relationship to the 2017 introduction of mifepristone medical abortion and updated SOGC clinical guidelines. We aimed to create a cross-sectional online survey capturing demographics, clinical care and provider experiences among healthcare professionals providing abortion care either independently or in collaborative care agreements. After completing a literature search, we held expert working-group meetings to revise the 2012 survey instrument. We convened expert focus groups across Canada engaging clinicians and researchers from many sectors, and subsequently piloted the survey instrument. We held 7 expert working groups of 5–10 participants each. Input from participants including family physicians, obstetricians & gynaecologists, maternal–fetal–medicine specialists, midwives, nurses, and researchers ensured relevant and concise questions. Due to the complexity of some of the identified topics, such as interdisciplinary collaboration and differences between provinces, some of the survey sections underwent an iterative process of meetings and revisions until we reached consensus on constructs to include. The resulting instrument underwent pilot testing among additional experts representing the study population. We confirmed content validity, clarity of language and usability of the survey instrument. The new national survey instrument is the product of a rigorous revision and testing process. We plan to implement the survey in 2020 to assess practice factors and their relationship to recent SOGC guidelines.