$340,000 Mortgage Payment
Monthly principal & interest by interest rate and loan term.
A $340,000 mortgage at 6.50% over 30 years costs about $2,149 a month in principal and interest, and $433,651 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
- $2,149 a month on a 30-year term, with $433,651 of interest paid in total.
- $2,535 a month on a 20-year term, with $268,388 of interest paid in total.
- $2,962 a month on a 15-year term, with $193,119 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% | $1,825 | $2,244 | $2,689 |
| 5.5% | $1,930 | $2,339 | $2,778 |
| 6% | $2,038 | $2,436 | $2,869 |
| 6.5% | $2,149 | $2,535 | $2,962 |
| 7% | $2,262 | $2,636 | $3,056 |
| 7.5% | $2,377 | $2,739 | $3,152 |
| 8% | $2,495 | $2,844 | $3,249 |
Principal & interest only. Property tax, insurance, PMI and HOA are extra.
At 6.5% over 30 Years
| Loan Amount | $340,000 |
|---|---|
| Monthly Principal & Interest | $2,149 |
| Total Interest (30 yr) | $433,651 |
| Total of Payments | $773,651 |
First-Year Amortization (6.5%, 30 yr)
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $307 | $1,842 | $339,693 |
| 2 | $309 | $1,840 | $339,384 |
| 3 | $311 | $1,838 | $339,073 |
| 4 | $312 | $1,837 | $338,761 |
| 5 | $314 | $1,835 | $338,446 |
| 6 | $316 | $1,833 | $338,131 |
| 7 | $317 | $1,832 | $337,813 |
| 8 | $319 | $1,830 | $337,494 |
| 9 | $321 | $1,828 | $337,173 |
| 10 | $323 | $1,826 | $336,850 |
| 11 | $324 | $1,825 | $336,526 |
| 12 | $326 | $1,823 | $336,200 |
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.