Federal Standard Deduction used by TT differs from the actual standard deduction

[trienzo]

I am trying to complete my son's federal return.  He is filing single; TT selected the standard deduction, but only included $9,694 as a deduction instead of the $12,550.  Any thoughts why?  Should I just change the amount in the "Forms"?

[xmasbaby0]

The standard deduction amount for an individual who may be claimed as a dependent by another taxpayer cannot exceed the greater of $1,100 or the sum of $350 and the individual’s earned income (not to exceed the regular standard deduction amount).

[Bsch4477]

The standard deduction is the taxpayers income if the income is not at least as high as the standard deduction. 

[trienzo]

Thank you