Cost basis / LTCG / STCG about eth2-staking-rewards-calculator HOT 2 OPEN

I haven't thought about that, mostly because I didn't need it myself so far and nobody else asked for it. Also I'm not doing very much with this repository, I'm more focused on bringing new features to the webapp available at ETH2.tax (especially more detailed validator performance statistics, but that's beside the point).

If you want to add some of those numbers (CB/STCG/LTCG) and append it to the end of the output CSV / console, I'm all for it! If you create a MR with the functionality, I'll take a look at it and merge it ASAP. Otherwise, it'll take me a while to get back to this myself, I'm a little overloaded at the moment.

If you do decide to create the MR, please make the parameters customizable (STCG_LIMIT_DAYS=365 or something like that).

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The biggest challenge turns into "wash sales" and cluster that is cost basis accounting when you are effectively buying every day ... and therefore your daily blended cast basis is actually decently easy to calc.. that is until you sell of the gains from that stake.. and then causes the gain event.. but not for all etc.. there many accounting packages that have been build for stock traders to compute this.. though of course none is open source! Hence my desire to add functionality to what has already been put together..

thought given my limitation on coding, I painfully forced to writing specs...

Thinking on that really is that we should have another input file that includes all of the external transactions Buys and/ or Sells that then spawn off the account cost basis clusters based on the validator(s) earnings. First impression is that the weighted average method is probably best used, though, FIFO / LIFO could also be done.. with the avg. each sale (if done after 365d) would then be include a portion that is stcg and the remainder ltcg..

the above isn't "easy" per se.. but should be the identical methodology used for stocks... so there is a reference point... but with a continuous buy (of ETH) from the validator...

No worries on timing.. happy to help where possible... and happy to discuss privately if you want.

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