Once you’ve submitted your amended return you should expect to hear back from the CRA with either a notice of reassessment or an amendment rejection letter within: Two weeks for online adjustments Eight weeks for paper adjustments The processing time can vary depending on the complexity of your request and any documents or verifications required. Situations commonly resulting in extended filing times include: The CRA has to contact you or your authorized representative Your request involves multiple tax returns or tax years past the normal three year reassessment period Your amendment is for a bankruptcy related return The taxpayer in question is deceased Your request involves a carryback amount An international or non-resident client/taxpayer makes the request An elected split-pension amount is involved