If TaxBit is integrated with the exchange you bought the ICO from then it will automatically handle the transaction. However, often times ICOs are purchased from small or obscure sources. If this is the case you can upload your transactions from any source through CSV import. If you have your transaction history from where you bought it then you can import that information into a TaxBit through CSV. Otherwise you will have to remember how much you purchased the currency for. If the ICO is now worthless and disposed of then you should enter a sale price in the CSV document of $0. This will calculate the ICO as a complete loss.