Key facts
- 30-year mortgage rates average 6.48% as of June 4, 2026.
- Mortgage rates are influenced by inflation, government borrowing, and mortgage-backed securities.
- Federal deficits are projected to add $3.4 trillion through 2034 due to a 2025 tax and immigration bill.
- Treasury yields, particularly the 10-year note, are a key benchmark for mortgage rates.
- Prepayment risk in mortgage-backed securities also contributes to higher mortgage rates.
U.S. 30-year mortgage rates are averaging 6.48% as of June 4, 2026, a significant increase from lows of 6% in February 2026, impacting homebuyers and refinancing efforts. While the Federal Reserve influences the short-term federal funds rate, it has limited direct control over long-term mortgage rates. These rates are primarily driven by financial market expectations regarding future inflation, economic growth, and government borrowing. Elevated oil prices and the conflict with Iran contribute to inflation uncertainty, prompting investors to demand higher yields to compensate for the risk of diminished purchasing power. Furthermore, the Congressional Budget Office projects that a 2025 tax and immigration bill will add $3.4 trillion to federal deficits through 2034. The U.S. Treasury's need to issue substantial debt to finance these deficits increases the supply of government bonds, often leading to higher Treasury yields, which in turn influence mortgage rates, particularly tracking the 10-year Treasury note. Mortgage-backed securities also carry prepayment risk, as homeowners may refinance when rates fall, leading investors to demand a premium, further contributing to elevated mortgage rates. Historically, current rates are not unusual, falling within the 6%-8% range seen in the 1990s and early 2000s, unlike the exceptionally low rates of 2020-2021.