Thank you for your reply.
This caught us by surprise, so we'll have to file an extension request (they are both away at school).
I assume the older one will owe some tax (she had nothing withheld at her job on the W-2). What's the best way (short of actually doing the whole return now) of figuring out an estimate of how much she'll owe and paying that by tomorrow with the extension? And can I e-file the extension request for her? I bought the desktop TurboTax with 5 federal e-files included - does that use up one of the e-files?
