Sum of values in each row under specific header name

[MrsALT]

Hi! I'm new to VBA and couldn't find previous threads that help me with my problem.

I need to get the sum of values in each row under a specific set of header names, which are invoice aging days:

61-90 days (column 9)
91-120 days (column 10)
121-180 days (column 11)
181-270 days (column 12)
271-360 days (column 13)
More than 360 days (column 14)

The problem is one or two may be missing from the list above at some point because the list changes daily, so the column placement also changes (example, column 14 becomes column 12 if no invoices aged 181-360 days).

WIll greatly appreciate your help!

 

[dashiellx]

You may not need vba. Have you tried the SUMIF function?

 

[Joe4]

If you are using a date range, you will probably need SUMIFS (which allow multiple conditions/criteria) instead of SUMIF (which only allows a single condition).
See: Sum if date is between