Per support response i got last night

"
thank you for your message.
The linked accounts stay completely separate, there is no recognition of cost basis or purchase pool across them.
Theis can only be achieved if your have both accounts as trading groups in one account.

If you wanted to try and work with two separate account you could only do this by using spent instead of a withdrawal and income instead of a deposits, since they both change the purchase pool / cost basis BUT this would mean everything spent gets calculated with capital gains and every income will appear in your income report, resulting in much higher taxes. So you could use LOST and GIFT instead and exclude those from the gains/tax report, but the water is getting very murky then...



Best regards,
Christiane

Dr. Christiane Williams
CoinTracking Support

(We are currently flooded with support requests. Please excuse any delays.)"




So it looks like i need to research how the trading groups work.  At the end of the day I just want the coins I put in my ledger to have their original cost basis for tax purposes.  But because I'm using FIFO I'm worried i wont be able to achieve this.