Social Security Trustees Report 2026: What 78% Costs a Max Earner

What the 2026 report says, line by line

We read the full 2026 Trustees Report (SSA’s file as archived on October 20, 2026, because ssa.gov blocks scripted downloads) and checked each figure in the table below against its text. The report says the intermediate, or best-estimate, assumptions “were set in February 2026.”

Source: 2026 Annual Report of the Board of Trustees of the Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds, Table II.A1 and the Highlights text.

Two cautions the report itself makes. First, “Legislative action will be needed to prevent OASI reserve depletion.” Second, full payment until 2034 “implicitly assumes that the law will have been changed to permit the transfer of funds between OASI and DI as needed.” A retiree reading “2034” is reading the optimistic date. Under current law the retirement fund reaches its limit first.

The range is not wide. The report’s low-cost case moves OASI depletion to 2035 (89 percent payable) and its high-cost case to 2031. In its simulations, 95 percent of outcomes put depletion between 2032 and 2039, the same range as in the 2025 report.

Why the deficit grew

The OASDI actuarial deficit rose from 3.82 percent of taxable payroll (1.3 percent of GDP) in the 2025 report to 4.42 percent (1.5 percent). The report names three assumption changes: the ultimate total fertility rate is 1.75 children per woman, down from 1.90; lower assumed immigration (the long-run level of temporary or unlawfully present entrants falls from 1.35 million to 1.20 million a year); and faster near-term productivity and earnings growth, which helps. It adds the One Big Beautiful Bill Act of July 4, 2025, which it says means “less income tax will be paid on Social Security benefits,” and so less revenue to the trust funds. The 75-year unfunded obligation is $29.3 trillion, against $25.1 trillion a year earlier.

What a maximum earner would actually lose (our arithmetic)

The report speaks in percentages of scheduled benefits. A reader with a $250,000 portfolio and a long career at the taxable maximum wants dollars. We took SSA’s Office of the Chief Actuary table of benefits for a worker with maximum-taxable earnings since age 22 who retires in January 2026, the same table behind our page on the Social Security maximum benefit, and multiplied by the Trustees’ payable shares. This is a simplification: it holds the 2026 benefit fixed (a cost-of-living adjustment scales both the benefit and the cut), and the report says the payable share keeps falling after depletion, so later years would lose more than the first.

Source: SSA Office of the Chief Actuary, maximum-taxable benefit examples, January 2026 retirement column; payable share from the 2026 Trustees Report; multiplication and rounding are our arithmetic.

If the combined 83 percent applied instead, the monthly loss would be $505 at 62, $589 at 65, $638 at 66, $715 at 67 and $881 at 70. A 25.2 percent across-the-board cut, the size the report says would restore 75-year solvency if made in 2026, would take $1,060 a month from the age-67 check and $1,306 from the age-70 check. Someone who claims at 70 in January 2026 is 76 in 2032; five years at a flat 78 percent would cost $68,389 in 2026 dollars (our arithmetic), before any further decline.

Who loses the most dollars

A flat percentage cut takes the most dollars from the biggest check. The ranking of claiming ages does not change (70 still pays more than 62 at any common payable share), but a break-even that assumes full payment overstates what the later claim is worth if a cut arrives. Our claiming age and break-even chart uses full scheduled benefits; a reader who wants to test a 78 percent case can multiply the check by 0.78 from 2033 on and compare.

The benefit-tax interaction

Part of a large benefit is taxed, so a cut takes less than its face value after tax. Take a single filer with the age-67 maximum ($50,484 a year) and $100,000 of other income. Provisional income is $125,242 and, under IRC section 86(a)(2), 85 percent of the benefit, $42,911, is taxable. At 78 percent the benefit is $39,378 and the taxable part $33,471, so taxable benefits fall $9,441, which is 85 percent of the $11,106 cut. At an assumed 24 percent marginal rate that saves $2,266 of tax, and the after-tax loss is $8,841 (our arithmetic; 24 percent is an assumption, not your rate). Our page on taxable Social Security with rental and K-1 income has the full worksheet.

Taxation of benefits: the thresholds are not indexed

The Trustees’ assumptions chapter says the threshold amounts “are $25,000 for single filers, $32,000 for joint filers, and $0 for those married individuals filing separately,” and that the thresholds “are specified in the Internal Revenue Code to be constant in the future, and have never been changed, while income and benefit levels continue to rise.” The statute agrees: IRC section 86(c) sets base amounts of $25,000 and $32,000 (joint) and adjusted base amounts of $34,000 and $44,000 (joint). The report adds that up to 85 percent of benefits may be subject to federal income tax.

Source: 26 U.S.C. 86(c) as published by Cornell LII; SSA Office of the Chief Actuary, contribution and benefit base; 2026 Trustees Report. The payroll-tax base moves with wages; the section 86 amounts do not.

What a reader can do with this

• Plan on the retirement-fund date, not the combined one. The report’s own wording makes 2032 the date under current law for retirees; 2034 needs a transfer law.
• Run your own statement at 78 and 83 percent. Your Social Security statement shows your scheduled benefit; put 78 percent, 83 percent and the 25.2 percent case through your budget before you decide when to claim.
• Keep the cut in context. Depletion does not stop payments; the report says continuing income can pay a share. The share depends on what Congress does.
• Re-run the tax with the smaller benefit. A smaller benefit lowers the taxable part, but the thresholds stay put, so rental, K-1 and distribution income keeps pushing provisional income past $34,000 or $44,000.
• Look at the whole sequence. Survivor benefits, a spouse’s record, Roth conversions and Medicare IRMAA all interact with the benefit; see our survivor benefits and PIA formula pages.

This is analysis of public documents, not investment, legal or tax advice.

FAQ

Sources, read and saved on November 3, 2026: 2026 Annual Report of the Board of Trustees of the Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds (ssa.gov/oact/tr/2026, read from the Internet Archive copy of October 20, 2026); SSA Office of the Chief Actuary, maximum-taxable benefit examples, benefit formula bend points and contribution and benefit base (ssa.gov/oact/cola); 26 U.S.C. 86 (law.cornell.edu). Dollar losses are our arithmetic and ignore cost-of-living adjustments.