A 10% risk-free yield? For some, yes.

A 10% risk-free yield may sound implausible in a market where Treasury bills yield far less, but for a specific group of investors, the math works. The key is tax equivalence: for very high earners in high-tax locations, a tax-exempt income stream can deliver an after-tax return that rivals — or exceeds — a taxable yield roughly a third higher. In other words, the headline yield isn't 10% in isolation; it's what a tax-free payout can be worth to someone facing top federal, state, and local rates.

The development matters because it reframes how income is compared. Most yield discussions focus on gross rates, which can be misleading for investors in the highest brackets. What to watch is whether tax-exempt vehicles continue to price attractively relative to taxable alternatives, and how changes in tax policy or interest rates shift that relationship. For everyone else, the takeaway is simpler: the value of any yield depends heavily on where you sit in the tax code, not just the number quoted.