Thank you for your response. As a reference for others, here is how I reported my 1099-B info.
I didn't have a "Less Common Investments and Savings" section. I am using TurboTax Deluxe and have a "Less Common Income" section but there was no Contracts and Straddles link there. Instead I found the Contracts and Straddles link at the bottom of the "Investment Income" section.
I have not made any special elections related to my account so I left all these boxes blank.
My form 1099-B relates only to regulated futures contracts. I had no offsetting positions (straddles) so I checked only the first box (Section 1256 contracts market to market) .
The next screen is pretty much self explanatory except it has a text box for line 8 labeled as "Account Description." On my Form 1099-B line 8 contains an amount for "Total Profit/(Loss) on Futures Contracts in USD for 2022." If my 1099-B is formatted correctly, then TurboTax has this input box mislabeled. I left this box blank.
TurboTax does not provide input boxes for 1099-B lines 9 and 10.
TurboTax provides two boxes for 1099-B line 11; one for gains and one for losses. Here I input the amount from line 11 in the appropriate box and left the other blank
I believe reporting only an amount from 1099-B line 11 is sufficient to calculate your tax liability. Line 11 is the net of the lines 8 (current year realized P/L) and line 9 (prior year unrealized P/L) and line 10 (current year unrealized P/L). Thus the year-end mark to markets (unrealized P/Ls) should roll forward and be included in the taxable gain/loss reported on line 11.
I hope my experience may help others. Please post if you have any comments or corrections.
