Crypo currency
I had a Schedule D from Coinbase showing proceeds and cost basis. I entered the info and submitted my return, and then TurboTax told me I was going to need to mail a Form 8453 to the IRS, and the Form 8453 it gave me had the box checkmarked to tell me to attach Form 8949 when sending this to the IRS. But Form 8949 is already part of my return. So what should I be sending the IRS?