Where do I deduct commissions and fees for stock. I have made loss in the trading. 1099 from TD Ameritrade is not reflecting the commission and regulatory fee. thank you

The IRS does not allow you to write off transactions fees, such as brokerage fees and commissions, when you buy or sell stocks. Instead, you can add the amount of those fees to the purchase price of your stock. The purchase price plus the cost to acquire your stock equals your cost basis.

TurboTax has made allowances to make this correction. 

1. When posing in the Stock area there is a check box.
2. Under Box 1e - Cost or other basis 
   1. Report the basis as it shows on the brokerage firm
3. Below that you will see 
   1. The cost basis is incorrect or missing on my 1099‑B
   2. Check this box and .. Continue
4. Let us know if any of these situations apply to this sale
   1. ​​​​​​​None of these apply .. Continue​​​​​​​
5. We noticed there's an issue with your cost basis...Let us know if you'd like to make any changes
   1. I know my cost basis and need to make an adjustment
   2. Enter the adjusted amount