$520,000 Mortgage Payment
Monthly principal & interest by interest rate and loan term.
A $520,000 mortgage at 6.50% over 30 years costs about $3,287 a month in principal and interest, and $663,230 in interest over the life of the loan.
Early payments are mostly interest: in the first year only a small slice of each instalment reduces the balance. That is why a shorter term saves so much — the rate is similar, but the interest has far less time to compound.
Choosing a term
- $3,287 a month on a 30-year term, with $663,230 of interest paid in total.
- $3,877 a month on a 20-year term, with $410,475 of interest paid in total.
- $4,530 a month on a 15-year term, with $295,357 of interest paid in total.
- Property tax, homeowners insurance, PMI and HOA dues are not included — a common reason a real payment lands 20-30% above the figure shown here.
Monthly Payment by Rate & Term
| Interest Rate | 30 years | 20 years | 15 years |
|---|---|---|---|
| 5% | $2,791 | $3,432 | $4,112 |
| 5.5% | $2,953 | $3,577 | $4,249 |
| 6% | $3,118 | $3,725 | $4,388 |
| 6.5% | $3,287 | $3,877 | $4,530 |
| 7% | $3,460 | $4,032 | $4,674 |
| 7.5% | $3,636 | $4,189 | $4,820 |
| 8% | $3,816 | $4,349 | $4,969 |
Principal & interest only. Property tax, insurance, PMI and HOA are extra.
At 6.5% over 30 Years
| Loan Amount | $520,000 |
|---|---|
| Monthly Principal & Interest | $3,287 |
| Total Interest (30 yr) | $663,230 |
| Total of Payments | $1,183,230 |
First-Year Amortization (6.5%, 30 yr)
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $470 | $2,817 | $519,530 |
| 2 | $473 | $2,814 | $519,057 |
| 3 | $475 | $2,812 | $518,582 |
| 4 | $478 | $2,809 | $518,104 |
| 5 | $480 | $2,806 | $517,624 |
| 6 | $483 | $2,804 | $517,141 |
| 7 | $486 | $2,801 | $516,655 |
| 8 | $488 | $2,799 | $516,167 |
| 9 | $491 | $2,796 | $515,676 |
| 10 | $494 | $2,793 | $515,183 |
| 11 | $496 | $2,791 | $514,687 |
| 12 | $499 | $2,788 | $514,188 |
Early payments are mostly interest; principal builds over time.
Last reviewed: November 2026
Data sources: Standard mortgage amortization formula; Principal & interest only — excludes taxes, insurance, PMI, HOA.
Disclaimer: Payment estimates are for principal and interest at the rates shown. Your actual payment depends on your rate, taxes, insurance and fees. Not financial advice.