Insurers are leaning heavily on private‑credit rating firms to price debt, a shift that regulators fear could mask risk. By treating boutique scores like official benchmarks, carriers sidestep traditional oversight and secure cheaper capital. The practice has accelerated as legacy agencies tighten standards after recent defaults, leaving a widening gap for issuers. This reliance also pressures rating firms to expand methodology beyond traditional metrics.

Analysts warn that unchecked regulatory arbitrage erodes market discipline, allowing insurers to underprice credit exposure. When rating gaps widen, investors may misread portfolio health, prompting sudden re‑ratings that could trigger massive write‑downs. European insurers already report double‑digit growth in private‑rating usage, while U.S. carriers cite similar trends, raising concerns for capital adequacy frameworks. Regulators are watching closely.

The FT argues that policymakers must close the loophole before systemic risk builds. Options include extending existing supervisory rules to cover private scores or requiring insurers to disclose rating sources alongside capital calculations. Without such steps, the industry risks a credibility crisis that could spill over into broader credit markets, tightening funding for corporates and sovereign borrowers alike.