My permit is expiring and I applied to extend it — can I keep working or studying while I wait?

In most cases, yes. If you applied to extend before your current permit expired, you generally have "maintained status" — you can keep working or studying under the same conditions as your old permit while IRCC processes your application. Keep proof that you applied on time, such as your submission confirmation. If your extension is later refused, you must generally stop working or studying right away, so it helps to apply well before your permit expires.