I'm claiming my 18yr old son who lives with me as a dependant but he is also in college as well. How and where do I put his college down on my taxes?

[xmasbaby0]

When you are entering his information in MY INFO you will need to say that he is a full-time student.   Watch for a screen titled "Less Common Situations" where you can check that he was a college student.   As for education credits--

There are several places you may want to look at----Federal>Deductions and Credits>Education>Expenses and Scholarships (Form 1098-T)    or Federal>Deductions and Credits>Education>ESA and 529 qualified tuition programs (Form 1099-Q)

WHAT TAX BREAKS CAN I TAKE FOR EDUCATION

https://ttlc.intuit.com/turbotax-support/en-us/help-article/education-tax-credits-deductions/tax-bre...

AMERICAN OPPORTUNITY TAX CREDIT

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-credits-deductions/eligible-take-ame...

AOC will be shown on line 29 of your Form 1040

https://www.irs.gov/help/ita/am-i-eligible-to-claim-an-education-credit

[Mike9241]

you and only you can claim the applicable credits when you reach the education section in Turbotax online. If you need to upgrade the version you are using Turbotax should inform you. 

the desktop version includes the education credits section for no additional charge