Sum by month in Excel and Google Sheets
=SUMIFS(B2:B5,A2:A5,">="&D5,A2:A5,"<="&EOMONTH(D5,0))
B2:B5 = sum range
A2:A5 = criteria_range1
">="&D5 = criteria_range1 condition.
A2:A5 = criteria_range2
"<="&EOMONTH(D5,0) = criteria_range2 condition.
=SUMIFS(B2:B5,A2:A5,">="&D5,A2:A5,"<="&EOMONTH(D5,0))
=SUMIFS(B2:B5,A2:A5,">="&C6,A2:A5,"<="&EOMONTH(C6,0))
B2:B5 = sum range
A2:A5 = criteria_range1
">="&C6 = criteria_range1 condition.
A2:A5 = criteria_range2
"<="&EOMONTH(C6,0) = criteria_range2 condition.
EOMONTH function will return the end date of the selected month. In this example 31st of March 2021.
=SUMIFS(B2:B5,A2:A5,">="&D5,A2:A5,"<="&EOMONTH(D5,0))
B2:B5 = sum range
A2:A5 = criteria_range1
">="&D5 = criteria_range1 condition.
A2:A5 = criteria_range2
"<="&EOMONTH(D5,0) = criteria_range2 condition.
EOMONTH function will return the end date of the selected month. In this example 31st of March 2021.