Tax calculation doesn't seem correct

AGI = approx  $21,400 (LINE11)

Standard deduction = approx $13,000  (filing single) LINE 12

Taxable income = approx $8,400 LINE 15

 

Turbo tax says that there is no tax due. 

All income was from investments: interest, dividends, cap gains.  no W-2's,  nothing withheld. no previous year refunds applied to 2022.

 

LINES 16-38 ARE EITHER BLANK OR "0"  

 

Is this calculation of ZERO TAX OWED correct?

 

Thanks in advance