In the amended form, it added $529.10 to the undetermined B or E. When I import it, TurboTax shows it as a gain and therefore the Net gain or losses do not match. I have attached the first form and the amended form.
I did reach out to Turbo Tax twice with no resolution. It seems like an odd situation.
Any help or guidance would be appreciated.
This is the import of the amended document
Original Document
Amended Document
You are correct. The only corrected line affects the proceeds total and should affect the total gain/loss column which looks unchanged. Since the brokerage is not reporting the basis, you will have to use your records to fil that it. That will change the total gain/loss amount anyway. If you don't know the basis, it should be zero.
You can only do what you know is right and keep documentation in case of an audit.
If you don't know your basis, I want to urge you to create a financial notebook that is kept separate from your tax return. Keep it safe and each year, add your year-end statements from all your financial accounts plus a copy of your W2’s, your carryover information, and proof of your basis in your various investments. You must keep tax records from the time you purchase until sold/ loss used plus 3 years. It is very easy to lose track of disallowed losses, carryforwards, and basis.