Estimate your monthly business loan payment, total interest, and full amortization schedule.
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Enter your loan details, then click Calculate to see results.
| Year | Total Paid | Principal Paid | Interest Paid | Remaining Balance |
|---|
A business loan calculator turns a lender's quoted loan amount, interest rate, and term into the numbers that actually drive a financing decision: the fixed monthly payment you'll owe, the total interest you'll pay over the life of the loan, and — once an origination fee is added — the true all-in cost of borrowing. NeftCal's calculator is built for founders, finance teams, and freelancers comparing term loan or SBA loan offers before signing, and for anyone who wants to see exactly how much of each payment goes toward interest versus principal as the loan pays down.
Enter the loan amount, annual interest rate, and repayment term, and the calculator converts those inputs into a monthly rate and a total number of payments, then applies the standard amortizing loan formula to compute a fixed payment that fully retires the balance by the end of the term. Add an optional origination fee percentage and it's layered on top as a separate upfront cost, so the fee's real impact on your total borrowing cost never gets buried inside the headline interest rate.
This tool is useful for small business owners comparing quotes from multiple banks or online lenders, founders modeling how a term loan or SBA loan affects monthly cash flow before applying, freelancers and contractors financing equipment purchases, and finance teams stress-testing how a shorter versus longer repayment term changes total interest cost. It's built for fixed-rate, fixed-term financing — a lump sum borrowed once and repaid in equal monthly installments — rather than revolving credit lines.
Knowing your exact monthly payment before signing lets you budget cash flow with confidence, and comparing total interest and total cost across multiple lender quotes on a true apples-to-apples basis can save real money over the life of a loan. Because an origination fee doesn't change your monthly payment but does add directly to what you actually pay, factoring it into a single Total Cost of Loan figure — rather than judging offers on interest rate alone — gives a far more accurate picture of which loan is genuinely cheaper.
Business loans typically use a fixed monthly payment that fully amortizes the balance by the end of the term.
Early payments are mostly interest because the balance is highest at the start. As the balance falls, more of each fixed payment goes toward principal.
A 1-5% origination fee on a $100,000 loan is $1,000-$5,000 added to your total cost, even though it doesn't change the monthly payment.
Stretching the term lowers monthly payments but increases total interest paid. Run both scenarios before deciding.
From loan terms to a full amortization schedule in under a minute
Input the total amount you plan to borrow from the lender — the principal before any fees are added.
Input the annual interest rate quoted by the lender, as a percentage. Use the actual rate from your loan offer, not an estimate.
Input the repayment term in years — decimals are allowed (0.5 for a 6-month loan), with a minimum term of 0.5 years.
Input the origination fee percentage, if any, that your lender charges at closing. Leave it at 0 if your loan has none.
Instantly see your monthly payment, total interest, total payment, and total cost of the loan including the origination fee.
Check the year-by-year table and remaining-balance chart to see exactly how the loan pays down over time, then export your results if needed.
A realistic business term loan calculation, step by step
Suppose a business borrows a $150,000 term loan at an 8% annual interest rate over a 5-year term, with a 2% origination fee charged at closing.
Explanation: Over the 5-year term, this business pays $32,487.55 in interest — about 21.7% of the original $150,000 borrowed — on top of the $3,000 origination fee, for a total cost of $185,487.55. In year 1 alone, the amortization schedule shows $11,081.49 of interest against $25,416.02 of principal; by year 5, interest drops to just $1,533.56 against $34,963.95 of principal, since interest is only ever charged on the shrinking remaining balance.
Term trade-off check: shortening the same loan to a 3-year term raises the monthly payment to about $4,700.45 but cuts total interest to roughly $19,216 — over $13,000 less than the 5-year term. Stretching to a 7-year term lowers the payment to about $2,337.93 but raises total interest to roughly $46,386. Running both scenarios before choosing a term shows exactly what the trade-off costs in real dollars.
How your interest rate moves the monthly payment and total interest
Your monthly payment and total interest are the two numbers that matter most when comparing loan offers. Because interest compounds on the outstanding balance, even a small difference in rate compounds into a meaningfully larger total-interest gap over a multi-year term. The table below holds the loan amount ($150,000) and term (5 years) constant from the worked example above and varies only the interest rate, so you can see the sensitivity for yourself.
| Annual Rate | Monthly Payment | Total Interest (5-year term) |
|---|---|---|
| 6% | $2,899.92 | $23,995.21 |
| 8% | $3,041.46 | $32,487.55 |
| 10% | $3,187.06 | $41,223.40 |
| 12% | $3,336.67 | $50,200.03 |
For monthly payment: a rate move from 6% to 12% on this loan raises the monthly payment by about $437 — noticeable, but far smaller in percentage terms than the swing in total interest, because monthly payment scales roughly in step with rate while total interest compounds over every remaining month of the term.
For total interest: the same 6-point rate swing more than doubles total interest paid, from about $23,995 to $50,200 — over $26,000 in additional cost for identical principal and term. This is why shopping multiple lenders for even a 1-2 point rate difference is worth the effort on a five- or six-figure business loan.
Risk considerations: this model assumes a fixed rate for the full term and equal monthly payments with no missed payments, prepayment penalties, or balloon structures. Treat the result as a planning estimate to compare offers, not a binding quote from any specific lender.
This calculator provides estimates for educational and informational purposes only. Results may vary depending on business conditions, accounting methods, taxes, market trends, and other factors. It should not be considered financial, legal, tax, accounting, or investment advice. Consult qualified professionals before making business decisions.
Where this business loan calculator earns its keep
Model the monthly payment on a loan for a new location, larger inventory, or additional staff.
Estimate payments on machinery, vehicles, or technology purchases financed as a fixed-term loan.
See how a short-term working capital loan affects monthly cash flow before drawing it down.
Compare an SBA-backed loan's payment and total cost against a conventional bank term loan.
Check whether a projected loan payment is affordable against early-stage revenue forecasts.
Model a seasonal inventory loan's cost against the sales it's expected to fund.
Estimate payments on a franchise fee or build-out loan before signing a franchise agreement.
Get a first-pass monthly payment estimate on a commercial real estate loan.
Compare a refinance offer's payment and total interest against your current business loan.
Run multiple lenders' rate and fee quotes through the same calculator for an apples-to-apples comparison.
See the Total Cost of Loan figure that folds the origination fee into the real cost of borrowing.
Show a concrete monthly payment and total interest figure when presenting a financing plan.
What this business loan calculator does well, and where it can't replace a formal lender quote
Same $150,000 loan at 8% APR — how term length shifts payment and total interest
| Term | Monthly Payment | Total Interest | Total Payment |
|---|---|---|---|
| 3 years | $4,700.45 | $19,216.37 | $169,216.37 |
| 5 years | $3,041.46 | $32,487.55 | $182,487.55 |
| 7 years | $2,337.93 | $46,386.30 | $196,386.30 |
| 10 years | $1,819.91 | $68,389.67 | $218,389.67 |
Common questions about business loan calculations
Official guidance to complement this calculator — not a substitute for licensed lending or accounting advice
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