13 hours is wild. I bought a house, got married, sold a bunch of stock, and qualified for a bunch of deductions last year. We filed jointly in maybe an hour and a half, including finding all of the paperwork. I'm pretty good with numbers and instructions, so I could see 4-6 being the average.

It was through freetaxusa, maybe handwriting balloons the job a bit? But it looks like only 14% file physically.