Dependents over 18

[JONATHAN SAURMAN]

My children 19 & 21 are over the age limit and don't go to school and made under 4300..Lived with us all year and are not disabled.   I read the child has to go to college full time.   Why is Turbo Tax saying they are dependents.

[DoninGA]

If the child is age 19 or older and is not a full time student then they can still be claimed as dependents if their gross income in 2020 was less than $4,300 under the Qualifying Relative rules.

To be a Qualifying Relative -

1. The person cannot be your qualifying child or the qualifying child of any other taxpayer. A child is not the qualifying child of any other taxpayer if the child's parent (or any other person for whom the child is defined as a qualifying child) is not required to file an income tax return or files an income tax return only to get a refund on income tax withheld.
2. The person either (a) must be related to you or (b) must live with you all year as a member of your household.
3. The person's gross income for the year must be less than $4,300 (social security does not count) in 2020
4. You must provide more than half of the person's total support for the year.
5. The person must be a U.S. citizen or a U.S., Canada, or Mexico resident for some part of the year.
6. The person must not file a joint return with their spouse.

[Hal_Al]

There are two types of dependents, "Qualifying Children"(QC) and standard ("Qualifying Relative" in IRS parlance even though they don't have to actually be related).  The requirement to be a full time student only applies to QCs.

There is no income limit for a QC but there is an age limit and student status test, a relationship test and a residence test. Only a QC qualifies a taxpayer for the Earned Income Credit and the Child Tax Credit.  There is an income limit for a Qualifying Relative ($4300).