Failure to submit Form 730 can lead to different consequences depending on your tax situation. If submitted within 90 days of the deadline, the return is late and carries a reduced penalty; if submitted after this deadline, it is omitted, with higher fines. Those in debt risk penalties of up to 240% of the unpaid tax and, in the most serious cases, even criminal prosecution. Those in debt, however, lose their refund. This can be remedied by submitting a late return or, after 90 days, the Personal Income Tax Form.