Infrastructure 2.0 Act This bill amends the Internal Revenue Code, with respect to the taxation of earnings and profits of a deferred foreign income corporation, to: (1) make such earnings and profits subject to taxation in the last year that ends before the enactment of this bill; (2) reduce the tax rate on such earnings and profits by allowing an exemption of 75% (equal to a tax of 8.75% of repatriated earnings and profits); and (3) allow corporations to pay the tax in installments. The bill also: establishes and provides appropriations for a fund to assist various public and private entities in investing in public infrastructure projects, appropriates revenues from this bill to the Highway Trust Fund (HTF), establishes a commission to make recommendations to achieve long-term solvency of the HTF and requires Congress to consider the proposed legislation using expedited procedures, and directs the Department of Transportation to establish a regional infrastructure accelerator pilot program to assist public entities in developing infrastructure projects. The bill establishes a deadline of 18 months after the enactment of this bill for the enactment of legislation to reform the international tax system by eliminating the incentive to hold earnings in low-tax foreign jurisdictions. If the legislation is not enacted by the deadline, a specified reform proposal takes effect, which includes provisions relating to subpart F income and insurance income, the taxation of repatriated offshore corporate earnings, gains and losses from the sale or exchange of stock in controlled foreign corporations, limitations on the foreign tax credit, and the tax treatment of previously deferred foreign income.