Average Interest Rate on the National Debt Climbs to 3.35% in May
The average rate on U.S. interest-bearing debt rose to 3.353% in May, the highest since October 2025, as low-coupon debt refinances into higher market yields.
Day June 8, 2026
The average rate on U.S. interest-bearing debt rose to 3.353% in May, the highest since October 2025, as low-coupon debt refinances into higher market yields.