After you file

Thanks @KrisD15 , following your suggestion to file our son as  dependent as he has tax liability. He makes money <50% of his expense, his 1098-T has tuition about 65K, not including additional room + board cost which is about 20K. We won't claim him in our tax return as it makes no difference that we don't qualify to any child credit. After selecting "Yes, someone else can claim me." BUT "No, someone else will NOT claim me",  then enters Form 1098-T, other expenses and no financial aid. Turbotax then pops up a form 8615 Tax for certain children who have unearned income, we have to enter parents income, SSN etc. Then it calculates his unearned income -not sure how it calculates? Then his tax amount increased drastically. Am I doing right?