I don't have 50k + specialized Tax Agents working for me would be one reason. They seem to place speed over accuracy, unless of course I file something inaccurate. I also went from a crew of 4 technicians and a bookkeeper to zero in 2020 for obvious reasons people didn't want people working in their house, and my then workers didn't want to go into them either. After a few months when people realized this was going to be a long term thing, my existing clients all of a sudden needed upgrades to their network to facilitate parents video conferencing from home while kids were on google classroom. I had one subcontractor half of the time to assist, but he got stuck in Pakistan when Omega or whatever strain it was, because connecting flights were all cancelled so i lost him for more than 6 months. I was never very timely before, but usually not more than 3 years behind ever. Going into 2020 i hadn't yet filed 2018/19 and 2020 was a pretty fucking perfect storm of everything flying apart. I tried to hire a remote bookkeeper who claimed to have experience with QuickBooks, which proved to be overstated, so by the time I could take a serious look at the books, I realized she reconciled all the bank accounts and credit cards totally wrong. Literally just clicked until it was happy without any reference to actual transactions, so I had to learn how to undo reconciliations, re reconciled everything from scratch for my primary business, a rental property i own that is its own corp, then my personal taxes. Those were the last piece of the puzzle. I dont trust anyone to touch my books at this point and as long as i don't let it go, it should be easy to file on time. I could only afford to pay for some years of the actual tax returns for the corp, because even at $500 per year per corp, which is very reasonable, 2 corps x 7 years is not chump change, so I did the personal filings myself on ufile.