All the best, keep us posted on how it goes. I'll do the same. My accountant and I spent over 50 hours preparing responses, submitting evidence, supporting documents, W-2s, IRS tax transcripts for the last 4 years, retirement savings account statements. Heck we even got our local Member of Parliament contact the CRA on my behalf several times and were successful in bringing the total amount due from 75K for the 2019 year down to 22K. Feels like we're running around in circles with the CRA. Each time we submit documents to answer their questions, they come back with entirely new logic and questions and request for documents. Don't think they're operating in good faith at all.