In the second worksheet, assuming the accounts are in column A, in column B,
add

=IF(COUNTIF(Sheet1!$A:$A,B1)=0,"New","")

and copy down

will show the new accounts

--

HTH

RP
(remove nothere from the email address if mailing direct)


"Jessica" wrote in message
...
I have 2 worksheets, one of them contains a large number of accounts and
then
the second one has new figures that I can add to the first worksheet.
Sometimes the second sheet will have new accounts on them but it is mixed
in
with the other 4,000 so its very difficult to find the new accounts. Right
now I'm copying and pasting the account numbers and comparing them to the
ones on the first sheet. Is there anything I can do to make searching for
new
accounts easier? Possibly using a VLOOKUP function to compare the account
numbers to the ones on the master sheet to find new accounts?