Can I renew or extend a Temporary Resident Permit from inside Canada?

Yes, generally a TRP holder who is already in Canada can apply to extend their permit from within the country before it expires, rather than needing to leave and reapply from abroad. An extension application typically needs to show that the original justification for the permit still exists, or that a comparable ongoing reason supports continued authorization, rather than simply restating that the person would like to stay longer.

Timing matters here just as it does with other status extensions: applying before the current permit expires generally preserves the person's authorized status while the extension is being decided, whereas letting the permit lapse first before applying can create a gap in status with its own consequences. If the underlying reason for the TRP has changed significantly, or has resolved entirely, an extension may not be appropriate at all, and a different application might be needed instead.

Because the specific evidence needed for an extension depends heavily on why the original TRP was issued, anyone approaching their permit's expiry should start preparing well in advance, gather updated evidence supporting the continued need, and get advice early enough to apply before the current permit runs out.