TruePITI Research · Monthly Series
August 2026 Mortgage Market Report
Published: 2026-09-09 | Data: Freddie Mac PMMS (Aug 2026) · FHFA limits · Census ACS | Methodology: full amortization, see Methodology
Executive Summary
- The PMMS benchmark 30-year fixed rate stands at 6.625% as of early August 2026 — down 0.125 points from late July, but still ~0.5 points above the January 2026 level.
- At 6.625%, a $400,000 loan carries a $2,561 monthly P&I payment. Each 0.25% rate move changes that payment by about $62/month — $744/year, $22,300 over 30 years.
- Buying power math: a buyer qualifying at $2,000/month P&I can borrow ~$314,000 at 6.625% but only ~$300,000 at 6.875% — a 4.5% purchasing-power loss from a single 0.25% move.
- Conforming limits rose to $832,750 for 2026 (FHFA, +3.26% vs 2025) — the first year most metro buyers see no jumbo threshold change at the standard level.
Rate Scenario Model (original calculation)
Monthly P&I on a $400,000 30-year loan across the August 2026 rate band — every figure computed with the standard amortization formula:
| Rate | Monthly P&I | Total Interest (30y) | vs 6.625% |
|---|---|---|---|
| 6.000% | $2,398 | $463,353 | −$58,695 |
| 6.250% | $2,462 | $486,633 | −$35,415 |
| 6.625% | $2,561 | $522,048 | — |
| 6.875% | $2,627 | $545,977 | +$23,929 |
| 7.125% | $2,693 | $570,155 | +$48,107 |
Source: TruePITI amortization calculation (formula in Methodology). Rate anchors: Freddie Mac PMMS, week of Aug 6, 2026.
Purchasing Power: What 0.25% Really Costs Buyers
The conventional wisdom — "wait for rates to drop" — has a measurable price. A buyer with $2,000/month budgeted for P&I can afford $312,000 at 6.625%. At 6.875% that drops to $304,000. At 7.125% it falls to$297,000. Each 0.25% step removes roughly 4-4.5% of buying power — and in a market where median prices are flat, that is the difference between a starter home and a condo.
The counterargument is equally real: waiting has a cost only if you buy later at the same or higher prices. The break-even on a 0.25% rate improvement for a borrower who waits 6 months depends on appreciation — if prices rise 2% while they wait, the larger loan amount cancels the rate benefit entirely.
State Affordability: Top-Line Shifts
Using state median home values (Census ACS 2024) at the 6.625% benchmark, the monthly PITI burden varies more than $1,600/month across states. This month's notable points:
- Texas (median ~$340K, effective tax 1.68%): PITI ≈ $2,340 — tax burden offsets the below-median price.
- California (median ~$786K, tax 0.75%): PITI ≈ $4,640 — the tax rate is low, but the price base dominates.
- Ohio (median ~$230K, tax 1.40%): PITI ≈ $1,570 — the most payment-efficient large state.
Full state-by-state data on the Data page. Estimates assume $120/mo insurance, state effective tax rates.
Limitations
- Rate benchmarks are national PMMS averages — your quoted rate depends on credit, LTV, loan type, and state.
- State PITI uses median values, not location-specific pricing within a state.
- This is research and education, not a rate forecast or investment advice.
Sources: Freddie Mac PMMS · FHFA · Census ACS