i need to add 'amount os' columns in 'residents' tab adding together and porting to 'monthly income' tab. for each month individually. Oct, Nov etc. the 'amount os' rolls the previous 'amount os' over if it falls within the same month. we cannot add cells K3 TO Q3 as it gives a false figure, the total should be for these two cells should be £5440, so the previous months 'amount os' needs to be deducted from the calculation q3-k3 gives the correct amount for that row. we will not get more than two amount os on any row as the payments are 28 days apart. the cells for 'amount os' for Nov-18 are as follows K3,K9,K11,Q2,Q3,Q4,Q6,Q7,Q9,W5,W8
Solved by S. A. in 17 mins