He also mentions in the video that he was overpaying his taxes because his accounting software wasn't backing out refunded purchases. This was a low four figure

He also mentions in the video that he was overpaying his taxes because his accounting software wasn't backing out refunded purchases. This was a low four figure amount but he decided he didn't want to file an amended tax return to recoup the money (I assume because his CPA would do the work and the CPA's costs would eat into the money returned).