Question

Should I choose I don't support anyone if I agreed not to claim an exemption for my daughter for the tax year 2020?

Should I choose my daughter lived with me for 0 months even though I have 50 50 custody?

Enter the answers correctly regarding the number of months your daughter lived with you and the amount of support you provided.

On the screen Do you have an agreement with [daughter]'s other parent about who can claim her? mark the Yes radio button and click Continue.
Is [daughter]'s other parent claiming her per your legal agreement? Mark the Yes radio button and click Continue.

You will see a screen confirming that your daughter doesn't count as your dependent this year because you let the other parent claim her.