If your Canadian visa application is refused, it is possible to reapply again. However, before reapplying, it will be a good idea to know the reason for the refusal, so you are able to address it in a subsequent application. The real reason for visa refusal is not usually contained in the generic refusal letters. To know why your visa application got rejected, you have to apply for the visa officer's note, often called 'GCMS Notes.'

Under the IAD, appeals for each application differ slightly:
Sponsorship appeals
• 30 days to appeal
• Appeal will be approved or dismissed:
   o If the appeal is approved, your case will continue at CIC for processing. If you are subject to a secondary refusal, you may begin the appeal process again.
Removal order appeals
• 30 days to appeal
• Appeal may be:
    o Approved - you may remain in Canada;
   o Dismissed - you will have to leave Canada;
   o Stayed - removal order will be suspended and appellant may stay in Canada under conditions until the stay is reviewed and the appeal reconsidered.
Residency obligation appeals
• 60 days to appeal
• IAD member will hold a hearing
• Appeal may be:
   o Allowed, permanent resident status restored;
Dismissed, status will be revoked and, should the appellant be in Canada, a removal order will be issued.