Filing a common-law sponsorship in Canada while still legally married can be confusing under IRCC rules. The good news is that it’s possible if you can prove you’ve been separated from your spouse and have a genuine, continuous relationship with your common-law partner. This guide explains IRCC’s definition of common-law partnership, required proof of separation and cohabitation, and key documentation to strengthen your application. Learn how to avoid misrepresentation and ensure your sponsorship is processed smoothly.