In order to assist you properly, can you tell us which version of TurboTax you are using; Online or Desktop?
We will need you to clarify your question. Are you doing a single or joint return?
When you say "transfer non-refundable and unused credits" is it an error message? a warning? Can you please tell us exactly, what is this message.
And which "considerable" amount are you talking about? which line?
Thank you for choosing TurboTax.