If the IRS receives copies of all 1099(B) forms, then why do we still have to mail these forms to them along with Form 8949. I chose to enter a summary of all transactions (i.e. cost basis and proceeds) instead of entering each sale (basically, copied what was on the consolidated 1099B form). Upon completion, I was still reminded to send Form 8453 along with Form 8949 and 1099B to the IRS. Again, isn't this redundant work if the IRS already receives all 1099 forms?
