$600,000 mortgage at 7%: monthly payment over 30 and 15 years
A $600,000 loan at 7% costs $3,991.81 a month in principal and interest on a 30-year term and $5,392.97 on a 15-year term. Those two numbers, and everything that follows from them, are below — computed with the standard amortization formula, not estimated.
| 30-year fixed | 15-year fixed | |
|---|---|---|
| Monthly principal & interest | $3,991.81 | $5,392.97 |
| Total interest over the term | $837,053 | $370,735 |
| Total paid (principal + interest) | $1,437,053 | $970,735 |
| Interest as a share of total paid | 58% | 38% |
Principal and interest only. Property taxes, homeowners insurance, mortgage insurance and HOA dues are added to the actual payment. Rates shown are for the arithmetic, not an offer; see 30-year vs 15-year for how to choose.
Amortization milestones
Year one: $47,902 paid, $41,807 of it interest, $6,095 principal. That ratio is why equity builds slowly at first and why extra principal payments early are worth the most.
| After | Remaining balance | Paid down |
|---|---|---|
| 5 years | $564,790 | $35,210 |
| 10 years | $514,874 | $85,126 |
| 15 years | $444,113 | $155,887 |
| 20 years | $343,800 | $256,200 |
| 25 years | $201,595 | $398,405 |
Reaching 80% loan-to-value
The Homeowners Protection Act sets two thresholds on the original value — 80% on request, 78% automatic. Here is when the regular amortization of this loan reaches them, depending on how much was put down:
| Starting LTV | Home value | 80% (request) | 78% (automatic) |
|---|---|---|---|
| 97% | $618,557 | month 140 | month 151 |
| 95% | $631,579 | month 130 | month 142 |
| 90% | $666,667 | month 101 | month 115 |
Extra principal payments or a new appraisal showing appreciation can bring cancellation forward — see PMI removal. FHA mortgage insurance follows different rules.
What a late payment costs
Most mortgages charge a late fee of 4% to 5% of the principal-and-interest payment after a 15-day grace period (state caps vary): on this loan, about $159.67 to $199.59. The costlier consequence comes at day 30, when the servicer may report the payment late to the credit bureaus — a mark that stays seven years. If a payment is genuinely at risk, read what to do this month.
Standard amortization formula
M = P × r(1 + r)n ÷ ((1 + r)n − 1), where P = $600,000, r = 7% ÷ 12 = 0.5833% per month, n = 360 (30 years) or 180 (15 years).
Same formula every lender uses; differences between quotes come from the rate, points and fees, never from the arithmetic. Balance after k payments: P(1 + r)k − M((1 + r)k − 1) ÷ r.
Frequently asked questions
What is the monthly payment on a $600,000 mortgage at 7%?
$3,991.81 a month for principal and interest on a 30-year fixed loan, or $5,392.97 on a 15-year fixed loan. Property taxes, homeowners insurance, mortgage insurance and any HOA dues are added on top and typically raise the total payment by 25% to 50%.
How much interest will I pay on a $600,000 loan at 7%?
$837,053 over 30 years, or $370,735 over 15 years, if every payment is made as scheduled with no extra principal. In the first year of the 30-year loan, about $41,807 of your $47,902 in payments is interest and $6,095 reduces the balance.
When can I cancel PMI on a $600,000 loan at 7%?
By the regular schedule alone, a loan that started at 95% of the home’s value reaches 80% loan-to-value in month 130 (when you may request cancellation) and 78% in month 142 (automatic cancellation). Extra principal payments or an appraisal showing appreciation can move that earlier.
Same amount, other rates: 5% · 6% · 8%. Same rate, other amounts: $150,000 · $200,000 · $250,000 · $300,000 · $350,000 · $400,000 · $500,000 · $800,000. All tables.