Deductions & credits

Thanks @MaryK4

 

Follow up, and hopefully finally question. 

My 1099b has two line items. One for employee, one for employer contributions. 

They matched 50% up to 6%.

 

My contributions were $10k, no discount. Their contributions were $5k.

 

So their contributions... I technically didn't pay for. Their contributions are also listed on my W2 in box 12b - marked 'D'. The number is very close (not identical) to the cost basis ... so I thought this was that, but it might be my 401k?

 

With this said, do I enter adjust cost basis at actual cost, or go with $0, for the employer line item on my 1099b? (Note that the cost is NOT on the 1099b and I had to retrieve this from the brokerage). 

 

Thank you