Long-Term Care Trust Account Act of 2007 - Amends the Internal Revenue Code to: (1) establish tax-exempt long-term care trust accounts; (2) allow cash contributions to such accounts up to $5,000 annually; (3) allow an exclusion from gross income for certain distributions, including for long-term care services for chronically-ill individuals; (4) impose penalties for excess contributions to such accounts and for failure to provide required reports on such accounts; and (5) allow a refundable tax credit for 10% of the annual contributions to such accounts.