There are different situations where you may be asked about
your student enrollment status while working in TurboTax. Depending upon which area of the return that you are in, the definition will be slightly different, per the IRS rules:
1) Qualifying
Child/Dependent status - For which, according to the IRS, an
eligible full-time student is under the age of 24 and full-time student
for at least five months of the year.
2) Educational credits -
For education credits, in most instances, according to the IRS,
a student is considered to be half-time or more if they carried at least
one-half the normal full-time workload. He or she only needs to be half-time
for one academic period that began during 2015 (or the first 3 months of 2016
if the qualified expenses were paid in 2015).
If you're not sure about your enrollment status, Box 8 of your
Form 1098-T will tell you whether you were at least half-time for your course
of study.
I am
including a link from the IRS to determine eligibility for
educational credits below:
https://www.irs.gov/uac/Am-I-Eligible-to-Claim-an-Education-Credit%3F
See TurboTax article on Rules for Claiming a Dependent on Your Tax Return: https://turbotax.intuit.com/tax-tools/tax-tips/Family/Rules-for-Claiming-a-Dependent-on-Your-Tax-Ret...