I used to just laugh at people that complained about doing one tax return. During peak, which is the first two weeks of February, I would do at least 8 returns in one day and as many as 13 returns. Even the most complicated personal tax returns rarely took me more than an hour to do. Even if they had a business they didn't take more than an hour and a half generally. The lady that sat next to me did farm and corporate returns and those could take several days to do.