I have "Box 7: Loss is not allowed based on amount in 1d" checked on my 1099-B. But i dont see option to enter in turbotax online edition. Is it required?

It sounds like you may have a wash sale loss?  There should be a code there that explains why the loss is disallowed.  Please check your 1099-B and see if it gives any more explanation for why the loss is disallowed?

@mahe-thina