I didn't see this posted, but if you go to bitcoin.tax, you can upload your coinbase transactions there. Then, it will generate a .csv that ACTUALLY FREAKING WORKS with TurboTax. I only had a few dozen trades, so it was free. But, even the plan with 10,000 trades is only $39.95. For mine, it would even list out the date acquired, date sold, cost basis and proceeds. So, you may be able to get that for free and do it manually if you have too many trades for the free one.
That being said, a big GFY to Coinbase and TurboTax for bait and switch.
