ben_g
Returning Member

Need to amend 2018 1040 after CP2000 for crypto Coinbase

Because Coinbase  is only giving users a 1099-K form, and I need to include a form 8949 and 1040, can I just submit an amended 1099-B with the original 1099-K?


Would the step to take be: 
1. Download and fill out https://www.irs.gov/pub/irs-pdf/f1040x.pdf amendment 

2. Fill out the standardized deductions form https://www.irs.gov/pub/irs-pdf/f1040sd.pdf
3. Also fill out an 8949 with trades https://www.irs.gov/pub/irs-pdf/f8949.pdf 
4. Mail all this and the original 1099-k from Coinbase and 1040

On the CP2000 it says I have $142,000 in payment car and third part transactions, and owe $48,000 in taxes. Except this view is changing this year on how the IRS view crypto. They will instead be sending out 1099-B from Coinbase, so does the tax year that needs amending go by what the law was then, or what it is now?