The $40 trillion debt becomes a planning input for advisors

Thursday morning, the 30-year Treasury yield touched 5.2256%, and the 10-year reached 4.6723% — levels not seen since before the 2008 financial crisis, according to CNBC. Total US government debt crossed $40 trillion this week; the Conference Board report notes it had already surpassed $39 trillion, roughly $116,000 for every citizen. The report, covered by InvestmentNews, argues financial advisors should prepare clients for consequences already taking shape: higher borrowing costs, threatened retirement income, and mounting pressure on family finances. Its aim is to turn the federal balance sheet into concrete planning inputs for wealth managers.

The research examines four client pressure points: college financing, homeownership, Social Security, and small-business growth. David K. Young, president of The CEO Center, which partnered on the research, said: "Higher debt can mean higher borrowing costs for families and businesses, fewer resources for national priorities, and greater uncertainty about programs Americans depend on in retirement."

Under the baseline scenario, annual deficits of 6% to 7% of GDP push federal debt to 154% of GDP by 2036. A higher-deficit scenario reaches 180%. Ten-year Treasury yields land near 4.1% in the baseline by 2036, and 4.6% in the bad case. A modeled one-week government default in 2029 would spike yields to 6.9%, settling near 5.6% over the longer term. The US now spends more each year on debt interest than on national defense, the report finds. These are planning boundaries, not forecasts.

The bond market is already providing a live test. Treasury Secretary Scott Bessent announced the department would double its debt repurchases, concentrating on the long end of the curve, and the 30-year yield dropped more than 10 basis points in one session. The report frames the pullback as temporary, warning that sustained deficits keep borrowing costs elevated. Thursday's 10-year yield, at 4.6723%, is already above the report's 4.6% bad-case projection for 2036. For independent advisors, the scenarios give specific rate paths to test retirement spending, mortgage plans, and small-business loans. The modeled default lands in 2029, close enough to sit inside most clients' planning horizon. Advisors don't need to pick a scenario; they need to show what each one costs a client. The market is already running that test.