Tax - How to determine whether what ED deduction (or credit) to use?

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<p>But for Someone without a tax liability that was eligible for the non refundable part of the credit…</p>

<p>would NOT have an amount in line 31 ?</p>

<p>THat is, does it seem ok to not have an amt on 31 and a $1k on line 43 (for someone w/o tax liability and who would take the full $1k refundable credit)?</p>