Do i have to input a cost or adjusted basis from my 1099-b even if it doesn't show up on my form or can i leave it blank since on the form it says it's not reported?

[ErnyVal]

Says I need to enter a Cost or Adjusted Basis to finish but on my 1099-B worksheet, it just says N/A. Also says it doesn't get reported to the IRS.

[HelenC12]

Yes, you should enter your cost or adjusted cost. It's not getting reported to the IRS because your financial institution doesn't know your cost basis.

• If you don't enter a number, the IRS will assume your cost is zero and you'll get taxed 100% on your proceeds.
• See How do I find a stock's cost basis?