Finance

Business Loan Total Interest Calculator (15 Years)

Estimate total interest paid over a loan. This business version uses a 15-year planning term as its starting point.

In plain terms, the total interest is the extra cost of borrowing beyond the amount borrowed, and the total paid is the amount borrowed plus that interest over the full 15-year term.

Formula

Total interest equals monthly EMI times number of payments minus the principal.

How it works

A longer term lowers the monthly payment but raises total interest.

Worked example

Loan amount $200,000, annual rate 6.5%, term 15 years. The monthly rate is 6.5% divided by 12, which is 0.0054167, and the number of payments is 15 times 12, which is 180. Using the EMI formula, the monthly payment is $1,742.21. Over 180 payments the total paid is $313,598.65. Total interest is $313,598.65 minus $200,000, which is $113,598.65. That is 56.8% of the amount borrowed, so the business pays back more than one and a half times the original loan.

Who this term suits for a business: A 15-year term suits a business borrowing for a long-lived asset, for example a restaurant fitting out a leased premises it plans to trade from for many years, or a logistics firm buying vehicles it will run for over a decade. The payment of $1,742.21 a month leaves more cash for operations than a 10-year term, but the business must be confident the asset and the premises will still be earning in year 15, because the interest bill is already $113,598.65.

FAQs

Why does a longer loan cost more interest?
More payments mean interest is charged for longer, so total interest rises even if each payment is smaller.

Is this business calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Is a 15-year business loan too long?
It depends on what the loan buys. If the asset earns for 15 years, the term can fit. If the asset is replaced in 7 or 8 years, a 15-year loan means the business is still paying for something it no longer uses, while also paying $113,598.65 in total interest.

Why is the total interest $113,598.65 when the rate is only 6.5%?
Because interest is charged every month for 180 months. A 6.5% annual rate looks small, but 180 monthly payments add up: the total paid is $313,598.65 on a $200,000 loan, and $113,598.65 of that is interest. Long terms hide their cost in the number of payments, not in the rate.

Should a business refinance a 15-year loan later?
It can help if rates fall or the business credit improves, but refinancing has its own fees and a new term. Compare the remaining total interest on the current loan with the total interest plus fees on the new loan, not just the new monthly payment.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.