Is it possible to track multiple portfolios to separate taxpayers?

If I were to trade on behalf of several different taxpayers in a single Coinbase Pro account by using separate Coinbase Pro Portfolios for each person, can CoinTracker allow me to associate a unique taxpayer ID for each of the Coinbase Pro Portfolios? Or, does each taxpayer have to have a unique Coinbase or Coinbase Pro account for that to be possible?

We don’t yet support multiple sub-portfolios in CoinTracker. For now, you should create a separate CoinTracker account for each tax return and have the relevant person ensure that the right transactions are synced for each account.