Monthly payment on $800,000 by rate and term
Principal and interest on the $640,000 borrowed after a 20% deposit of $160,000. The rate is the single biggest lever, which is why it is worth shopping.
| Rate | 30 years | 20 years | 15 years |
|---|---|---|---|
| 5.50% | $3,633.85 | $4,402.48 | $5,229.33 |
| 6.00% | $3,837.12 | $4,585.16 | $5,400.68 |
| 6.50% | $4,045.24 | $4,771.67 | $5,575.09 |
| 7.00% | $4,257.94 | $4,961.91 | $5,752.50 |
| 7.50% | $4,474.97 | $5,155.80 | $5,932.88 |
| 8.00% | $4,696.09 | $5,353.22 | $6,116.17 |
Principal and interest only, before taxes, insurance and any PMI.
How the deposit changes it
| Down payment | Loan | P&I | PMI | PMI ends |
|---|---|---|---|---|
| 5% ($40,000) | $760,000 | $4,803.72 | $348.33 | month 135 |
| 10% ($80,000) | $720,000 | $4,550.89 | $330.00 | month 109 |
| 20% ($160,000) | $640,000 | $4,045.24 | — | not charged |
At 6.5% over 30 years. PMI applies above 80% loan-to-value and is cancelled automatically at 78%.
What $800,000 costs over the life of the loan
At 6.5% over 30 years on a $640,000 loan, the interest alone comes to $816,281 — on top of the amount borrowed. Shortening the term is the single biggest lever on that number:
| Term | Monthly (P&I) | Total interest | Interest saved |
|---|---|---|---|
| 30 years | $4,045 | $816,281 | — |
| 20 years | $4,772 | $505,200 | $311,081 |
| 15 years | $5,575 | $363,515 | $452,766 |
Paying it off over 15 years instead of 30 costs $1,530 more a month and saves $452,766 in interest.
What one percentage point of rate is worth here
On a $640,000 loan, going from 6.5% to 7.5% adds $430 a month — and $154,703 across the full term. At this size, a rate quote worth shopping for is worth more than most of the fees people negotiate instead.
The income a lender would look for
Lenders commonly cap housing costs at 28% of gross monthly income. On the full payment of $4,929 — principal, interest, tax, insurance — that implies roughly $211,224 a year before tax. It is a rule of thumb, not an underwriting decision: your other debts, credit score and deposit all move it. See what that salary looks like after tax.
Frequently asked questions
What is the monthly payment on a $800,000 house?
With 20% down at 6.5% over 30 years, principal and interest are $4,045.24 a month. Adding property tax and insurance brings the full payment to about $4,928.57.
How much do I need to put down on a $800,000 home?
20% is $160,000, which avoids PMI. At 5% down ($40,000) you would borrow $760,000 and pay an extra $348.33 a month in PMI until month 135.
How much interest does a $800,000 mortgage cost?
On the $640,000 borrowed at 6.5% over 30 years, total interest is $816,281 — about 128% of the amount borrowed. A 15-year term cuts that to $363,515.
Nearby prices
Related tools
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