Need to turn a sumifs formula into an array

Can someone please help me to turn this formula:

=ROUND(if($B7="","",sumifs(Expenses!$B:$B,Expenses!$E:$E,$B7)))

into an array with this column title Total (12 months)?

Basically, it is searching through column E on the Expenses tab to find a match for cell B7 on the Budget Targets tab and return the value for that row from column B.

FYI - I already have this array formula in column D and it works just fine:

=IFNA(VSTACK("Monthly Average",ARRAYFORMULA(IF($E$7="",,$E$7:$E$11/12))))

See a sample workbook

You can also try this using ARRAYFORMULA

 =ARRAYFORMULA(VSTACK("Total (12 months)", IF(B7:B11<>"", ROUND(SUMIF(Expenses!$E:$E, B7:B, Expenses!$B:$B)), "")))

Note: Copy and paste it into row E6

Expected Output