I'm glad you got it worked out. It sucks to have an accountant not paying attention.Hmm... Well, it's worse than that; when pressed (and with the combined weight of TMC behind me) he admitted that he had made a typo and just put $2500 in the box which should have said $7500. Thanks to everyone who replied! We owe $5K less than we were told.
The guys's not bad enough that we'll get a new accountant for this but I may have the returns checked by a third party.