IF AND Nested Formula Help


New Member
Apr 9, 2012
Hi Guys & Gurls

thanks for reading this, I'm having a few issues with a current spreadsheet I'm working on, its designed to track inspection frequencies, it was all working fine until the client decided they wanted to track two different industry requirements :(

its set out like this

Cell A1 has the asset build date or 'ground zero' if you like - 01/01/1991

Cell H7 has the client requirement for inspection in days - 365 (every year they'll inspect it)

Cell G7 has the industry best practice for inspection in days - 730 (every 2 years they'll inspect it)

Cell O7 has the Certificate of Conformity date in it - 1/1/10 - (date the asset was built)

Cell P7 has the following formula - =IF(H7="",$A$1,MAX(O7,$A$1))

Cell Q7 is where we record the last inspection date if the client has documentation

Cell S7 is where i'm stuck, it currently reads =IF(H7="","",MAX(Q7,P7)+H7) to give me the date they must next inspect the item, however what i need it to do is

IF H7 is blank use G7
IF BOTH H7 & G7 are blank stay blank

if H7 is used the end of the formula needs to read MAX(Q7,P7)+H7)
if G7 is used it needs to read MAX(Q7,P7)+G7)

hope someone can help, I'm not opposed to hidden cells to do part of the equation if that's the best way around it :)

thank you in advance Ian


Well-known Member
May 17, 2009
Office Version

If I understand correctly then try...


Hope that helps.

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