On a 1099-B form, I have an amount in the column marked 1f but there's no box to enter it on the Turbo Tax form. What do I do?

Right below the cost basis line, there is a box to click, "I have other boxes on my 1099‑B to enter". Box 1f, "Box 1f - Accrued market discount" will open up.

I cannot get back into the forms to check exactly where that is.

On the Tax Return it is on Schedule 1, Additional Income and Adjustments to Income. Part 1, Other Income, list type and amount. I entered Steel Path Remediation, LLC and then the amount.

Once the taxes are filed you cannot go back into the Turbo Tax forms, so I don’t remember exactly where. I it is under an income form and the last question is for any income without the correct IRS form #?????. That is where I was able to enter Steel Path Remediation, LLC and then the amount of the check.

I do not know if this will help you.

Good luck.