The recent passage of the One Big Beautiful Bill Act in July 2025, which raised the statutory debt limit by $5 trillion to $41.1 trillion, provides substantial headroom that analysts project will extend well into 2027 before another ceiling confrontation arises. Congress has repeatedly suspended or increased the limit over decades rather than permit a payment default, and the U.S. Treasury continues to prioritize interest obligations while using extraordinary measures as needed. This track record, combined with the severe market and economic disruptions that would accompany even a brief default, underpins traders' 97% implied probability that no default occurs by the end of 2027. The principal remaining uncertainty centers on 2027 negotiations, where partisan disputes over appropriations or reconciliation could produce brinkmanship, though historical patterns indicate resolution without breaching payment schedules.