On Form 8606, I entered the incorrect value of all my traditional IRAs. This requires that I file an amended return (not just an amended Form 8606) since it impacts my tax obligation. I amended my original return and it correctly generates Form 8606. However, I also need to add a nondeductible contribution (line 1) which I failed to include on the original filing. How do I tell TurboTax (desktop edition) that I would like to amend the amount in line 1, or how do I directly edit the Form 8606 that was generated? I cannot figure out how to do either.
