1. Short title This Act may be cited as the Social Security 2100 Act . 2. Table of contents The table of contents for this Act is as follows: Sec. 1. Short title. Sec. 2. Table of contents. Title I—Strengthening Benefits Sec. 101. Across-the-board benefit increase. Sec. 102. More accurate cost-of-living adjustment. Sec. 103. Increasing the minimum benefit for long-term low earners. Sec. 104. Increasing threshold amounts for inclusion of Social Security benefits in income. Sec. 105. Improving benefits for widows and widowers in two-income households. Sec. 106. Increasing benefits for beneficiaries after 15 years of eligibility. Sec. 107. Providing caregiver credits for Social Security. Sec. 108. Eliminating the 5-month waiting period for disability benefits. Sec. 109. Establishing a gradual offset for disability beneficiaries with earnings. Sec. 110. Repealing the Government pension offset and windfall elimination provisions. Sec. 111. Extending the child’s benefit for post-secondary school students under age 26. Sec. 112. Increasing access to benefits for children who live with grandparents or other relatives. Sec. 113. Preventing an unintended drop in benefits relating to the application of the National Average Wage Index. Sec. 114. Holding SSI, Medicaid, and CHIP beneficiaries harmless. Title II—Strengthening the Trust Fund Sec. 201. Determining wages and self-employment income above contribution and benefit base after 2023. Sec. 202. Including earnings over $400,000 in Social Security benefit formula. Sec. 203. Application of Social Security tax to net investment income. Sec. 204. Establishing the Social Security Trust Fund. Title III—Strengthening Service Delivery Sec. 301. Clarifying the requirement to mail Social Security account statements. Sec. 302. Preventing closure of field and hearing offices and resident or rural contact stations. Sec. 303. Ensuring access to professional representation. I Strengthening Benefits 101. Across-the-board benefit increase (a) In general (1) Increase in primary insurance