Stop the Tax Hike on Charities and Places of Worship Act This bill modifies the requirements for determining the unrelated business taxable income of tax-exempt organizations. The bill repeals a provision that requires unrelated business taxable income to be increased by the amount of expenses paid or incurred by a tax-exempt organization for certain fringe benefits for which a tax deduction is not allowed, including benefits relating to transportation, parking, or an on-premises athletic facility. The bill also increases the corporate income tax rate from 21% to 21.03%.