Proposed Provision: E2.18. Apply the combined OASDI payroll tax rate on covered earnings above $400,000 paid in 2027 and later, and tax all covered earnings once the current-law taxable maximum exceeds $400,000. Increase the computed level of the AWI for years after 2026 by amounts ranging from 0.5 percent for 2027 to 0.9 percent for 2048 and later. Credit the additional earnings taxed for benefit purposes by: (a) calculating a second average indexed monthly earnings ("AIME+") reflecting only earnings taxed above the current-law taxable maximum, (b) applying a 1 percent factor on this newly computed "AIME+" to develop a second component of the PIA, and (c) adding this second component to the current-law PIA.