NZ business loan calculator.
One calculator for every NZ business loan type. Slide the amount, term, and indicative rate to see weekly cost, monthly cost, and total interest in seconds.
Last reviewed 27 April 2026
Indicative repayment
Weekly
$394/week
Indicative only. Not a quote or offer of credit. Actual rates, fees, and repayments depend on the business profile and the lender's decision.
Sending to Prospa
Your $50,000 scenario
3 years at 14.00%. Prospa will ask a few quick questions, then provide a firm quote and funding if eligible.
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Indicative only. Why we say this
What it is
One amortising-loan formula across every NZ product type.
The calculator runs the standard amortising-loan formula used across NZ business lending: principal-and-interest, equal repayments across the term, with interest accruing on the outstanding balance. The same maths underpins equipment finance, small business loans, secured term loans, and commercial property loans across the NZ market.
What changes between products is the rate band, the typical term, and the security position, not the formula. The calculator is a tool to feel the cost across those variables, not a tool to compare specific offers (which requires fees and break costs in addition to the rate).
When it suits
For testing the cost of credit before lender conversations.
The most common use is testing whether the cost of credit makes sense against the upside the borrowing is funding. If a $50,000 loan at indicative 18% costs $1,500 per month for 3 years, the test is whether the underlying purpose generates the kind of margin that absorbs that cost. If the answer is no, the structure or amount needs revisiting.
Many NZ businesses use the calculator early in the borrowing decision, to set expectations on monthly cash-flow impact before any lender contact. It commonly avoids the sticker-shock conversation later in the process.
At a glance
Indicative monthly cost on common NZ amounts.
The figures below assume a 5-year term at the indicative rate shown. Actual rate, fees, and repayment depend on the lender's assessment.
| Loan amount | 9% p.a. (secured) | 14% p.a. (unsecured) | 20% p.a. (short-term) |
|---|---|---|---|
| $25,000 | ~$519 / month | ~$582 / month | ~$662 / month |
| $50,000 | ~$1,038 / month | ~$1,163 / month | ~$1,325 / month |
| $100,000 | ~$2,076 / month | ~$2,326 / month | ~$2,650 / month |
| $250,000 | ~$5,189 / month | ~$5,816 / month | ~$6,624 / month |
| $500,000 | ~$10,378 / month | ~$11,632 / month | ~$13,248 / month |
FAQ
NZ business loan calculator, common questions
How accurate is this NZ business loan calculator?
The maths behind the calculator is the standard amortising-loan formula used across NZ business lending: monthly repayment = principal × (rate ÷ 12) ÷ (1 - (1 + rate ÷ 12)^-months). The output is mathematically exact for the inputs entered. The accuracy of the result for any specific loan offer depends on the rate, fees, and term the lender ultimately offers, all subject to the lender's assessment.
What rate should I use in the calculator?
Indicative NZ business loan rates run 7% to 25% per annum across product types. Secured lending sits 7% to 14%; unsecured runs 12% to 25%; equipment finance 8% to 16%; commercial property 7% to 11%. Try the rate band relevant to the structure being considered. The calculator is a feel for the cost, not a quote.
Does the calculator include fees?
No. The calculator runs the principal-and-interest amortisation only. Establishment fees (typically $200 to $1,500 on alternative lenders, $500 to $5,000 on major banks), monthly service fees ($0 to $40), and any break costs are separate from the calculator output. The lender's loan contract is the authoritative reference for the all-in cost.
Can I use the calculator for any business loan type?
Yes, the underlying formula applies to any amortising business term loan: equipment finance, small business loan, secured business loan, commercial property loan, working capital loan, vehicle finance. For revolving credit (line of credit, overdraft), the calculator approximates a fully drawn position; actual revolving cost is governed by daily drawn-balance accrual.
How do I work out a sensible loan term?
A sensible term commonly matches the loan to the asset or purpose. Equipment that lasts 5 years generally finances over 5 years or less. Working capital gaps fund over 6 to 24 months. Commercial property runs 10 to 25 years. Matching the term to the use prevents borrowing past the productive life of what is being funded.
What does "indicative" mean on the rate?
Indicative means representative of what NZ lenders are commonly pricing for that product type and borrower profile, not a quote. Lenders set the actual rate based on borrower-specific factors: trading history, security, debt-service ratios, industry, and credit profile. The indicative figure is a directional guide, not a commitment.
Can I compare two loan offers in the calculator?
Run the calculator twice with the two different rate-and-term combinations, and compare the monthly cost and total interest. The total interest figure is typically more illuminating than the monthly figure alone, because a lower monthly cost can come at the price of a longer term and materially higher total interest paid.
Is the calculator stored or shared?
No. The calculator runs entirely in the browser; nothing is sent to a server, stored, or shared. Privacy is preserved by design. The only data that leaves the browser is the analytics event when "See if you qualify" is clicked, which records the click event but no input figures.
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