Hello,
I filed my taxes today, and afterwards, TurboTax told me that I need to mail in form 8453, with no further information. I found similar information in another thread suggesting that in my case, I need to also submit my 1099B form with the form 8453, but this is where the problem lies.
For reference, I sold some cryptocurrency through Coinbase, which does not provide form 1099B, which I assume is why I need to mail in this form. However, I am not clear on what I need to send in. Since I don't have a 1099B, and filled in the summary form in TurboTax it appears that the form 8949 that TurboTax submitted isn't acceptable. But then do I just mail 8453 without any attachments? That seems wrong.
The cryptocurrency in question is some that I personally mined in 2014. So these are mainly long-term capital gains taxes. In that case, there's not much else I can attach.
So, should I go through the process of listing out all transactions on a form 8949 and submitting that as an attachment (and then it won't exactly match with what was e-filed), with the top-line numbers matching? Or what should I do?
when sales proceeds and/or cost are not furnished to the IRS you need to enter each completed transaction on form 8949 or enter summary totals. if you enter summary totals then the iRS requires you to submit the details of each completed transaction in a format that mimics form 8949 along with form 8453.
If you are filing your tax return using an online provider (IE TURBOTAX), mail Form 8453 to the IRS within 3 business days after you have received acknowledgment from your intermediate service provider and/or transmitter that the IRS has accepted your electronically filed tax return. If you don’t receive an acknowledgement, you must contact your intermediate service provider and/or transmitter.
Mail Form 8453 to:
Internal Revenue Service Attn: Shipping and Receiving, 0254 Receipt and Control Branch Austin, TX 73344-0254
failure to submit transaction detail can be construed as filing an incomplete return. whether the IRS does anything about this is up to it.
you can download form 8949 from the IRS website and prepare it manually.