Trust fund depletion in late 2032 puts a 22% benefit cut inside working-age planning horizons

One trillion dollars of net interest against $40 trillion of debt works out to an average effective rate of roughly 2.5% ^[23], and if that rate held all the way out, the $2.1 trillion CBO projects for 2036 would imply about $84 trillion of debt behind it ^[24]. I do not believe that number (rates move, the maturity mix moves, and CBO's own path is built on neither of my assumptions), but the direction is not in dispute: the interest line roughly doubles inside ten years, which is about 7.7% a year compounding and $1.1 trillion of additional annual outlay by 2036 ^[18].

The household version of that arithmetic is smaller and much sharper. Take the median-wage worker retiring in 2027, credited with roughly $730,000 of lifetime benefits against less than $200,000 of combined worker and employer contributions ^[9], and apply the roughly 22% across-the-board reduction the Committee for a Responsible Federal Budget expects when the retirement trust fund is exhausted ^[5]: the haircut is worth about $160,600 ^[19], which is more than 80 cents of every dollar the two of them paid in ^[20]. No plausible sequence of equity returns on the contributions themselves moves the outcome by that much, and the date is on a calendar.

On the tax side the parameters are equally legible. At 6.2% each on a taxable maximum of $184,500 in 2026 ^[8], the employee writes $11,439, the employer matches it, and the self-employed worker pays the combined $22,878 alone ^[21]. That ceiling is the cheapest thing in the system to move, because raising it changes no benefit formula and requires no actuarial argument.

Worth flagging a soft spot in the source's own framing: the same passage says lifetime benefits equal about 265% of what the worker personally paid ^[10], which back-solves to roughly $275,500 of personal contributions ^[22], a figure above the "less than $200,000" it gives for worker and employer combined ^[9]. The two ratios are sitting on different bases, probably present value against nominal, and neither should be load-bearing in a plan on its own.

This is probably wrong, but I read CRFB's Six Figure Limit, which caps benefits at $100,000 for a couple and $50,000 for a single retiree ^[6] while touching only the top 0.05% of couples with average retirement income above $2.5 million ^[7], as evidence that the politically cheap options raise very little, which pushes the real fix toward broad parameters and toward the tax base first. The counter-thesis is that nothing passes at all: 79% of younger respondents in Cato's June 2026 analysis already expect a cut to their own benefits ^[14], and a legislature facing a constituency that has priced in the loss has less reason to spend capital preventing it. What would prove me wrong is a fix that lands on the benefit formula for future retirees rather than the ceiling, in which case the people paying are the same ones already funding today's checks under pay-as-you-go ^[16].