$800,000 Mortgage Calculator
Monthly payment on a $800,000 home: $4,258/month (20% down, 7% rate, 30-year term).
= $160,000
Payment Breakdown
$800,000 Mortgage by Rate & Term
| Rate | 15-Year | 20-Year | 30-Year |
|---|---|---|---|
| 5.5% | $5,229 | $4,402 | $3,634 |
| 6% | $5,401 | $4,585 | $3,837 |
| 6.5% | $5,575 | $4,772 | $4,045 |
| 6.75% | $5,663 | $4,866 | $4,151 |
| 7% | $5,753 | $4,962 | $4,258 |
| 7.25% | $5,842 | $5,058 | $4,366 |
| 7.5% | $5,933 | $5,156 | $4,475 |
| 8% | $6,116 | $5,353 | $4,696 |
Is a $800,000 Home Affordable?
A common rule of thumb is that your home should cost no more than 3× your annual income, and your monthly payment should be no more than 28% of your gross monthly income.
At $4,258/month (30-year, 7%, 20% down), you would need a gross monthly income of at least $15,207 (annual: $182,483) to keep housing costs at 28% of income.
A 15-year mortgage at 6.75% costs $5,663/month but saves $513,441 in total interest over the life of the loan compared to 30 years.
True Cost of a $800,000 Mortgage
Here's what you actually pay over the life of a $800,000 mortgage (20% down, 7%):
30-Year Term
15-Year Term
Tips for Buying a $800,000 Home
- Save for 20% down ($160,000). This eliminates PMI and gives you the best rates. If that's too much, FHA loans start at 3.5% down ($28,000).
- Shop rates aggressively. Even 0.25% lower on a $640,000 loan saves $107/month — that adds up to $38,487 over 30 years.
- Budget for closing costs. Expect 2-5% of the purchase price ($16,000–$40,000) in closing costs on top of your down payment.
- Don't forget ongoing costs. Property taxes (1-2%), homeowners insurance, maintenance (1% of home value/year), and possibly HOA fees all add to your monthly obligation.
- Consider the 15-year option. If you can handle $5,663/month instead of $4,258, you'll own your home in half the time and save $513,441 in interest.
- Get pre-approved first. A pre-approval letter strengthens your offer and locks in a rate for 60-90 days while you shop.
Frequently Asked Questions — $800,000 Mortgage
What is the monthly payment on a $800,000 mortgage?
With 20% down ($160,000) at 7% for 30 years, the monthly payment is $4,258. A 15-year term at 6.75% raises the payment to $5,663 but saves $513,441 in interest.
How much income do I need for a $800,000 home?
Using the 28% rule, you need at least $182,483/year in gross income for the mortgage payment alone. Including taxes and insurance, aim for closer to $246,352/year.
Is a 30-year or 15-year mortgage better for a $800,000 home?
A 30-year mortgage has a lower payment ($4,258 vs $5,663) but costs $513,441 more in interest. Choose 30-year for cash flow flexibility; 15-year if you can handle the higher payment and want to build equity faster.
How much is a down payment on a $800,000 house?
A standard 20% down payment is $160,000. You can put down as little as 3% ($24,000) with a conventional loan or 3.5% ($28,000) with FHA, but you'll pay PMI until you reach 20% equity.
What credit score do I need for a $800,000 mortgage?
A 620 credit score qualifies for most conventional loans. FHA accepts 580+. For the best rates on your $640,000 loan, target 740+ — it could save you 0.5% or more on your rate, worth $76,572 over 30 years.
How do I lower my mortgage payment on a $800,000 home?
Increase your down payment, negotiate a lower rate, choose a longer loan term, buy discount points, or look for lender credits. Even small rate decreases compound into meaningful savings over 30 years.
How much total interest will I pay on a $800,000 mortgage?
At 7% over 30 years with 20% down, you'll pay $892,857 in total interest — that's 140% of the original loan amount. A 15-year term at 6.75% cuts total interest to $379,416.
Should I buy points to lower my rate on a $800,000 mortgage?
Each discount point (1% of the loan amount = $6,400) typically lowers your rate by 0.25%. If you plan to stay 5+ years, buying points often pays for itself through lower monthly payments.