try this

=IF(AND(ISBLANK(C3),ISBLANK(D3)),"",SUM(E2-C3+D3))

you can also use <OR if you want.


Ida Lundberg wrote in message
...
Hi,

I am trying to put together a simple balance sheet where I have a
starting
balance in say E2. In column C are all the debits, column D has the
credits
and E has the current balance.
So....what I am trying to do is to check for an entry in C3 and if there
is,
the formula in E3 will be =E2-C3. But I am also checking for credit
entries
so it needs to be =E2-C3+D3. This works but I would like to leave E3 blank
if there nothing entered in the debit (C) or credit (D).
I tried using this: =IF(ISBLANK(C3),"",SUM(E2-C3+D3))

And it works. The problem is I need to check for ISBLANK in D3 as well in
the same formula.


Can this be done and if so, how? Or am I off the planet here, perhaps
there
is a much easier way of doing this?

Grateful for all help.