Latest 10-year Treasury mortgage rate spread reading shows 194 basis points as of September 23, 2026, with 30-year fixed at 6.95% and the 10-year Treasury at 5.01%.
As of the most recent FRED release dated 2026-09-17, the 30-year fixed mortgage rate stood at 6.95% while the 10-year Treasury yield printed 5.01%, producing a spread of 1.94 percentage points (194 basis points). This reading sits slightly above the 167-basis-point average cited in mid-2026 market summaries and reflects a modest widening from the sub-4.2% trading range that the 10-year Treasury occupied for much of the preceding month.
Treasury yields eased across the curve during the week of September 13. The benchmark 10-year yield declined four basis points to 4.65%, the 5-year fell five to 4.35%, and the 7-year slipped four to 4.49%. Shorter tenors also softened: the 3-month bill dropped three basis points to 3.87% and the 1-year shed five to 4.00%. The resulting upward-sloping curve continues to signal healthy economic expectations, in contrast to the deeply inverted profiles observed during the 2022–2024 tightening cycle.
| Period | 30-yr Fixed | 10-yr Treasury | Spread (bps) |
|---|---|---|---|
| Jul 15 2026 | 6.00% | 4.33% | 167 |
| Sep 17 2026 | 6.95% | 5.01% | 194 |
The table illustrates that the 10-year Treasury mortgage rate spread has expanded by 27 basis points over the past two months even as both benchmarks moved higher.
Lenders price 30-year loans off a combination of the 10-year Treasury, the 10-year swap spread, and prevailing servicing and guarantee fees. With the 10-year Treasury now above 5%, the 194-basis-point spread implies that mortgage-backed securities investors are demanding roughly 120 basis points of incremental compensation over the Treasury after accounting for the GSE guarantee fee and servicing strip. This margin remains within the post-pandemic norm of 110–140 basis points.
While national averages dominate headlines, state-level pricing can diverge by 15–25 basis points. In California, conforming 30-year fixed quotes averaged 7.05% last week, versus 6.85% in Texas and 6.90% in Florida, according to aggregated lender data. Borrowers in Illinois and New York saw the widest spreads at 205 and 200 basis points, respectively, reflecting higher servicing costs and property-tax escrows.
Market forecasts compiled by the Mortgage Bankers Association project that the 10-year Treasury will remain inside a 4.10%–4.40% corridor through year-end 2026. If realized, and assuming the current spread holds near 190 basis points, the 30-year fixed rate would settle between 6.00% and 6.30%. A sustained compression toward 150 basis points—possible if MBS-to-Treasury volatility declines—could shave an additional 40 basis points off mortgage rates without any movement in the 10-year yield.
The 10-year Treasury mortgage rate spread now sits at 194 basis points, 27 basis points wider than the July 2026 average. Homebuyers evaluating rate-lock timing can run live scenarios at HomeRates.ai to quantify how further spread compression or Treasury volatility would affect monthly payments.
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