we can't see your return so review thw capital gain and qualified dividend worksheet.
its possible
if your capital gains and qualified dividends were taxed at 20% that would be about $3500
the nonqualified dividends could be tax at 37% about another $3500
other possibilities
1) your income might be high enough to subject you to the Net Investment Income Tax of 3.8%
2) does that $7,000 included state income taxes
3) higher income can reduce or eliminate certain deductions and credits
we have no access to your return to give you a more precise answer as to what's happening. What you could do is to review your return both before and after these numbers are entered to see what's happening.
