After calculating margin trade profit, how should it be recorded for taxes?

I've manually calculated my BTC profits from margin long positions for the year. How would I show this on taxes?

Lets say you have 1 BTC profit from margin longing ETH/BTC. What is the correct way to identify this trade on bitcoin.tax?

Also, is it true you can declare margin trades as a CFD and count the profit as income rather than capital gains?