How the calculator works.

A standard amortising repayment using the principal-and-interest formula. The monthly figure is the level payment that fully repays the amount over the term at the chosen rate. The weekly figure is that monthly payment multiplied by twelve and divided by fifty-two. Total interest is the sum of all payments minus the amount financed.

Amount runs $5,000 to $500,000 because that band covers most New Zealand working capital lending, from a single tax payment to a season of trading. Term runs 6 to 60 months because that is where scheduled facilities settle, and a revolving facility uses the drawn-balance mode instead. Rate runs 8% to 30% to span receivables pricing at the low end through unsecured business lending at the upper end.

Lenders price on a credit assessment covering trading history, bank-statement cash flow, the receivables ledger, customer quality, the sector and the director profile. The calculator has none of that. It returns an arithmetic answer from the inputs shown, which is useful for testing a decision before any application. The actual offer can only come from the lender after its assessment.

They are observed across published New Zealand lender pricing and Reserve Bank of New Zealand business-lending statistics, and they are described as bands rather than as available rates because that is what they are. Each band-bearing page carries its own last-reviewed date, and the bands are revised when the underlying picture moves.

Because a repayment calculation does not need any. Nothing is submitted, no credit file is touched, and no contact form exists anywhere on this site. The handoff to Prospa happens only when the "See if you qualify" button is used, and the only thing on that URL is a partner tracking parameter rather than anything about the reader.

Because half the facilities on this site do not amortise. A scheduled facility repays to zero and a level payment is the right output for it. A revolving facility charges on what is drawn and never repays to a schedule, so the honest output there is the interest cost of an average drawn balance rather than a repayment that would not exist. Publishing the second as the first would be a figure that misdescribes the product.

They are not included, deliberately. Establishment fees, documentation fees, PPSR registration, legal costs on a secured facility and break costs on early settlement are all real. The calculator is rate-only so the effect of the rate can be seen in isolation, and the fees are described separately rather than folded into a figure that would then hide them.

The weekly and monthly payments rise, and the total interest rises more than proportionally because interest compounds across the term. Moving from 9% to 13% on a $95,000 facility over 48 months is in the region of $32 a week and roughly $6,600 across the full term, on those assumptions. Both figures update on the calculator as the slider moves.

Yes. One component is embedded on the home page, on the three calculator pages, on every facility and situation page, and inside body sections where a worked example benefits from it. The pre-filled defaults change to suit the page; the arithmetic is identical everywhere.

The calculation itself does not change, because amortisation maths is settled. What is reviewed is the default amount, term and rate on each page, and the indicative bands quoted around them. Those are revised when the New Zealand market picture moves rather than on a fixed schedule, and the review date is shown on the page.