Why Forex futures do not provide carry trade benefits?

IBKR does not offer the Futures Trust Account. 

Additional Information…

TWS and other trading screens will display an Average Price for your executions using FIFO. As there is no Cost Basis reporting for Forex like there is when trading securities, there is no way to change a "Cost Basis method" for your Forex trades…

The cost of physical delivery of US Spot Gold is the sum of:

• The differential between the spot price of gold and the cost of the physical product.
  • Physical metals products are provided by Fidelitrade Inc. Estimated cost of the physical product can be found…

The sum of the “yes” and “no” price for CME Event contract does not equal $100 because the sum excludes the spread provided to market makers for providing liquidity.

The sum of the “yes” and “no” percentages for CME Event contract does not equal 100% because the sum excludes the spread provided to market makers for providing liquidity…