Mortgage on a $800,000 home (2026)
Monthly payment with 20% down: $4,236/mo P&I, or about $5,369/mo all-in with taxes and insurance. At 6.95% (national average, 30-year fixed).
Monthly payment by down payment
| Scenario | Down payment | P&I (30yr) | PMI | All-in/mo |
|---|---|---|---|---|
| 20% down (no PMI) | $160,000 | $4,236 | — | $5,369 |
| 10% down | $80,000 | $4,766 | $510 | $6,409 |
| 5% down (FHA) | $40,000 | $5,031 | $538 | $6,702 |
Taxes estimated at 1.1% annually · Insurance at 0.6% · Rate: 6.95%
Income needed to afford a $800,000 home
Can you afford a $800,000 house?
A $800,000 home at today’s 6.95% average rate requires $4,236/month in principal and interest with 20% down ($160,000). That translates to needing roughly $230K in gross annual income to stay within the conventional 28% housing expense ratio.
The difference between 5% and 20% down on a $800,000 home is significant: a 5% down payment ($40,000) adds PMI of about $538/month until you reach 20% equity, and adds $166,200 in total interest over the life of the loan. If you can afford the larger down payment, the math strongly favors it.
On a 15-year loan, the monthly P&I payment jumps to $5,735 — $1,499 more per month than the 30-year option — but you save $492,660 in total interest and own the home outright in half the time.
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