Thank you for reaching out to the Community, @harvard2015. I'm happy to address your concern about converting your Tax reports to ASCII format. However, I noticed that you've actually asked a similar question before, and one of our experts has answered it in another thread. Click on this link: Can I convert my Tax reports on the QuickBooks to ASCII text file? What steps do I need to take? to check out that discussion. Take a look at the solution they suggested and give those steps a try to fix your issue.
In addition to this, I'm including an article that explains how QuickBooks can automatically calculate your income tax: Automatically estimate your income tax in QuickBooks Self-Employed as a future reference.
Please don't hesitate to add your comments on the thread if you have questions or need further clarifications. My team and I are always here to ensure you're well taken care of. Have a great day!
