Fannie Mae raised its 30-year mortgage forecast to 6.8% for the fourth quarter of 2026 through the first half of 2027, marking a sharp upward revision from its July outlook that had predicted 6.4% through the rest of 2026 and 6.3% into 2027. The government-sponsored enterprise also now forecasts 6.7% for the second half of 2027, eliminating the rate decline it had previously expected by year-end.
The revision represents a significant shift in the housing market’s near-term trajectory. Current mortgage rates already track near the new forecast level, with Freddie Mac’s 30-year fixed rate at 6.67% for the week ending August 13, suggesting the forecast reflects a new baseline rather than a temporary spike.
Rick Sharga, CEO of mortgage advisory firm CJ Patrick Co., pointed to multiple forces driving the upward revision. Rising oil prices have fueled inflation concerns that keep bond yields elevated, he told Scotsman Guide. The national debt surpassing $40 trillion for the first time continues to exert upward pressure on Treasury yields, which directly influence mortgage rates. Meanwhile, the Federal Reserve faces a bind: weakening employment and wage data alongside persistent inflation leave it with few levers to reduce borrowing costs in a way that would meaningfully lower mortgage rates.
Fannie Mae’s January 2026 forecast had initially projected rates near 6% across both 2026 and 2027, before the U.S. and Israel struck Iran, triggering global energy and trade shocks that reshaped economic assumptions. The mortgage industry has been steadily revising upward ever since. For homebuyers and investors, the new forecast eliminates a key planning assumption: the “refinance later” escape hatch that relied on 2027 rate relief no longer has an official forecast backing it.
Mortgage rates have hovered near 6.7% as the 30-year fixed edges higher, reflecting broader market stress. The 30-year Treasury yield peaked at 5.31% on August 17, near its highest level since 2007, before easing slightly to 5.28%. These long-duration rates set the floor for mortgage pricing and show little sign of sustained decline in the near term.
The forecast carries real consequences for the housing market. When mortgage rates rise from 6.5% to 6.75%, approximately 1.13 million households are priced out of the market entirely, unable to meet the higher income requirements, according to housing affordability research. With rates now forecast to stay at or above 6.7% through mid-2027, the pool of qualified buyers faces persistent headwinds. Home price appreciation is expected to slow as well, with forecasters calling for just 1.8% growth in 2026 and 2.5% in 2027.
Sources
- Scotsman Guide — Fannie Mae’s August 2026 forecast revision and Rick Sharga commentary on oil prices, national debt, and Fed constraints.
- REI Prime — Fannie Mae’s 6.8% forecast for Q4 2026 through mid-2027, comparison to July outlook, and current Freddie Mac rate data.
- FRED (Federal Reserve Economic Data) — 30-year Treasury yield peak of 5.31% on August 17, 2026.
- National Association of Home Builders — Affordability impact: 1.13 million households priced out per 0.25% rate increase.
- Reuters — Home price growth forecasts for 2026 and 2027.
