Monthly payment on a $15,000 home improvement loan at 8% for 4 years
A $15,000 loan at 8% over 4 years costs $366.19 a month. You pay $2,577 in interest, $17,577 in total.
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The numbers for these inputs
| Year | Principal paid | Interest paid | Balance left |
|---|---|---|---|
| 1 | $3,314 | $1,080 | $11,686 |
| 2 | $3,589 | $805 | $8,097 |
| 3 | $3,887 | $507 | $4,210 |
| 4 | $4,210 | $185 | $0 |
How it works
A fixed-rate loan is repaid with the same payment every month. The payment is chosen so that, after the last one, the balance is exactly zero: payment = amount x r / (1 - (1 + r)^-n), where r is the monthly rate (yearly rate / 12) and n is the number of months.
Each month the interest is the balance times r. The rest of the payment reduces the balance. Early on most of the payment is interest; later most of it is principal, which the year-by-year table shows.
The result does not include fees, insurance, taxes or a variable rate. Your lender's figure can differ a little, so use this to compare options, then ask for the official schedule.
Common mistakes
- Comparing loans by monthly payment alone: a longer term lowers the payment but raises the total interest.
- Forgetting that the quoted rate and the APR can differ once fees are included.
- Not checking whether extra payments go to principal; paying a little extra early saves the most interest.
- Using the headline rate for a variable-rate loan, which can rise.
Questions
What is the monthly payment on $15,000 at 8%?
$366.19 a month for 48 months, assuming a fixed rate and equal payments.
How much interest will I pay in total?
$2,577, which is 17.18% of the amount borrowed. The total repaid is $17,577.
How do I pay less interest?
Choose a shorter term, make a larger down payment, or pay extra toward the principal. Change the term slider to see the trade-off between payment and total interest.
Does this include fees or insurance?
No. It covers principal and interest only. Add origination fees, insurance or property taxes separately; for a mortgage they can add a large share to the monthly cost.
Why is the first year mostly interest?
Interest is charged on the remaining balance, which is highest at the start. As the balance falls, a larger part of each equal payment goes to principal.
More loan payment examples
- Monthly payment on a $20,000 car loan at 7% for 5 years
- Monthly payment on a $30,000 car loan at 6.5% for 6 years
- Monthly payment on a $10,000 personal loan at 9% for 3 years
- Monthly payment on a $5,000 personal loan at 12% for 2 years
- Monthly payment on a $30,000 student loan at 5% for 10 years
- Monthly payment on a $50,000 student loan at 5.5% for 10 years
- Monthly payment on a $300,000 mortgage at 6.5% for 30 years
- Monthly payment on a $300,000 mortgage at 6% for 15 years
- Monthly payment on a $400,000 mortgage at 6.75% for 30 years