adding values of a column based on another column content

Nearly

This gave me the sum of all income paid (valies with pay dates) instead of the outstanding (values with no pay date)

It has however worked fine since i have a total income box and have deducted the sum of paid from the total income to reveal the outstanding payment.

now all i have to do, is do some actual work to to create the "paid" instances so i can afford to keep working at home and messing about with stuff which really doesnt relate to my income other than me being able to see whats going on.

many thanks Excel meisters