If I import from my computer, do I need to assign header in one (like Buy/Sell) then in the next screen need I clarify that B is open to long and S is sell to close?

If I import from my computer, do I need to assign header in one (like Buy/Sell) then in next screen need I clarify that B is open to long and S is sell to close?

You can see unmatched transactions warning during the import procedure. TradeMax identifies transaction into 2 pairs: a Long Trade, contains Buy to Open(Open Long) and Sell to Close(Close Long) ; a Short Trade, contains Sell to Open(Open Short) and Buy to Close(Close Short). Not every broker is very responsible for the accuracy of their statement. Many Brokers mark Open Short and Close Short as Sell and Buy. That will confuse TradeMax during the trade matching, because Wash Sale rule only allow to carry loss between Trades with same intention. Therefore, one of your option is to manually alter these trades’ action type to get correct result and to avoid the unmatched transaction warning. For some special cases, You can change it to Short and Close Short (e.g. 100+200 short, then a 300 Close Short.) Unmatched transaction warning will disappear by adjusting.

Handle your wash sales and generator your Schedule D

If I import from my computer, do I need to assign header in one (like Buy/Sell) then in the next screen need I clarify that B is open to long and S is sell to close?