Thanks for your prompt help! Mission accomplished!

"Sean Timmons" wrote:

I would suggest
=if(E17="V",G17*.0175,0)

So that, if any value other than V, then $0.

"Essjay" wrote:

Can anyone help with syntax for an IF formula as under:
If E17=E (for exempt) then F17=$0.00 but
If E17=V (for VAT) then F17=G17*17.5%
I have an invoice on which some items are taxable and some not. If I put
the E or V letter in Column E, then I want it to return either a zero value
or to calculate the tax in column F on Column G at 17.5%. Is this possible?

e.g. A B - D E F G
Qty. Desc. E $0.00 200.00
Qty. Desc. V $147.00 840.00

Any help much appreciated.