Washington's 30-year borrowing cost hits 5.592%, highest since June 2002

5.592% was the interest rate on a 30-year U.S. government IOU on Sept. 29, 2026, Reuters reported, the highest since June 2002. Think of it as Washington's price for borrowing for 30 years. If it stays there, I expect mortgages and other long loans to get pricier.