Founder & Lead Author · WealthCalc
A 30-year fixed mortgage at 6.75% on a $400,000 home costs $2,594/month in principal and interest. The same loan at 3.0% (the 2021 average) cost $1,686/month — a $908/month difference, or $10,896 more per year. That gap explains why housing affordability is near historic lows even as home price growth has slowed.
As of May 2026, the Freddie Mac Primary Mortgage Market Survey shows 30-year fixed rates averaging 6.65–6.85% nationally. Rates vary significantly by borrower profile:
Assuming 20% down, 30-year fixed at 6.75%, and estimated property taxes/insurance:
Lenders typically limit total housing costs (PITI) to 28% of gross monthly income (front-end DTI) and total debt to 36–43% depending on the loan type:
A 20% down payment on the median U.S. home price ($420,000 as of Q1 2026) equals $84,000 — not including closing costs of 2–5% ($8,400–$21,000) and moving expenses. Total cash needed at closing: $92,000–$105,000.
This explains the surge in FHA loan usage (3.5% minimum down = $14,700 on a $420K home) and down payment assistance programs. FHA loans carry mortgage insurance premiums (MIP) that add $200–$400/month, offsetting some of the down-payment savings.
The rent-vs-buy comparison depends heavily on local markets and your time horizon. In high-cost cities (San Francisco, NYC, Seattle), break-even periods often exceed 8–10 years at current rates, meaning buying only makes financial sense if you plan to stay long-term.
Key factors that favor renting in 2026: planning to move within 3–5 years, housing inventory tight with prices near peaks in your market, and rent-to-price ratios below 5% (annual rent divided by home price). Key factors that favor buying: planning to stay 7+ years, fixed-rate certainty vs. rent increase risk, and local rent-to-price ratio above 6%.
Use our free calculators to apply what you just learned to your own numbers:
Personal-finance researcher & software engineer · WealthCalc
Tahir built WealthCalc to provide free, transparent financial tools grounded in primary government data. Every figure on this site is sourced directly from the IRS, SSA, FHFA, or Federal Reserve. Editorial standards →