Minimum Wage Act of 2007 - Amends the Fair Labor Standards Act of 1938 to increase the federal minimum wage to: (1) $5.85 an hour, beginning on the 60th day after enactment of this Act; (2) $6.55 an hour, beginning 12 months after that 60th day; and (3) $7.25 an hour, beginning 24 months after that 60th day.
Amends the Internal Revenue Code to: (1) make permanent accelerated cost recovery provisions for qualified leasehold improvement and restaurant property; (2) permit certain small businesses with gross receipts of not more than $10 million to use cash accounting methods and be exempt from the requirement of using inventories; (3) allow employers the work opportunity tax credit for hiring certain restaurant workers between the ages of 16 and 20; (4) set forth a definition and rules for evaluating the economic substance of financial transactions with tax consequences (economic substance doctrine); (5) impose an enhanced penalty for understatements of tax liability due to transactions lacking economic substance; (6) apply inverted corporation tax rules to certain transactions occurring after March 20, 2002; and (7) eliminate the requirement for a pre-levy collection due process hearing for taxpayers with employment tax liabilities.