Free loan calculators

Loan calculators

Model the numbers before you talk to a lender. No sign-up, no email — the maths runs entirely in your browser.

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Home Loan Repayment Calculator

Enter loan amount, annual rate, term and repayment frequency to get monthly / fortnightly / weekly repayments, total interest and the interest-to-principal ratio.

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Borrowing Capacity Estimator

Rough estimate of maximum borrowing under the APRA 3% buffer, based on household income, expenses, credit-card limits and other loan commitments.

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Stamp Duty & First-Home Grant Calculator

Calculates base duty, concessions, surcharges and FHOG by state/territory, price, property use, first-home-buyer status and foreign-buyer status.

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Refinance Break-Even Calculator

Compares current and new loan rates to estimate monthly savings, break-even months and net saving over the remaining term, after refi costs and lender cashback.

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Interest-Only vs Principal-and-Interest Comparison

Calculate IO-period repayments, the step-up when IO ends, and the total cost difference between IO and straight P&I paths.

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Offset Account Savings Calculator

Models how an offset balance reduces interest and shortens the loan term.

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Australian Individual Income Tax Calculator (2025-26)

Computes tax under 2025-26 post-Stage 3 resident / non-resident / WHM brackets; includes Medicare Levy, MLS and HELP repayments.

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Buy vs Rent — 7-Year Financial Comparison

A 7-year side-by-side comparison between owner-occupier (deposit + repayments + holding costs + capital growth) and renting (rent + 4% p.a. reinvestment of the surplus).

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Upfront Buying-Cost Estimator

Lists deposit, stamp duty, LMI, conveyancer, valuation, inspection, registration and moving costs — a complete upfront cash budget.

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Compound Interest Calculator

Projects an account's end balance, total contributions and interest earned over N years, given initial principal, monthly contribution, annual rate and compounding frequency.

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