Describe the problem:
I have purchase price data from Coinbase, synced it with Koinly, but cost basis is still wrong. I compared every transaction and Koinly has the correct information. I also added my Ledger acct which is where I transferred BTC.
Which exchange/wallet is this regarding?
Coinbase, Ledger
How did you import data into this wallet?
API for Coinbase, Blockchain for Ledger
What have you tried to fix this so far?
Manually uploaded data in Koinly, compared transactions, looked for missing transactions.
Usually these kind of issues are caused by missing transactions or something going wrong, like a transfer between your wallets being recognized as a disposal.
It could also be that you don’t have the cost basis method in your settings that you expect, so make sure to double check that.