Does moving to another province end my sponsorship undertaking obligations that started in Ontario?

No, moving to another province does not end a sponsorship undertaking that started while you lived in Ontario. A sponsorship undertaking is a commitment made to the federal government through IRCC, not to any particular province, so it doesn't depend on where in Canada the sponsor happens to live.

This surprises a lot of people, because the sponsorship process can feel tied to Ontario if that's where you applied, but the undertaking itself is a Canada-wide obligation. Whether you move from Ontario to another province, or even move within Ontario, the undertaking continues to run on its original timeline and carries the same legal weight no matter where you relocate.

This matters practically because it means someone can't reduce or end their responsibilities under an undertaking simply by relocating, even to a province with different provincial programs or rules. The federal nature of the obligation is exactly why it stays in place regardless of internal moves within Canada. If you're planning a move and have questions about how it interacts with an active sponsorship undertaking — for instance around reporting requirements or how a repayment claim might be handled — it's worth getting individual legal advice rather than assuming a move changes anything about your obligation.