Borrowing Calculator

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Estimate how much you can borrow for a home loan in Australia in under 2 minutes, private, instant, and built around real Australian lending standards

Added on February 16, 2026
Borrowing Calculator

What is Borrowing Calculator?

Borrowing Calculator – Estimate Your Home Loan Borrowing Power Our Borrowing Calculator helps Australian home buyers quickly estimate how much they may be able to borrow — based on real-world lending principles used by banks and lenders across Australia. Whether you’re a first home buyer, upgrading, refinancing, or investing, understanding your borrowing power is the first step before searching for property. This tool gives you a realistic estimate in under two minutes, without affecting your credit score. Unlike basic bank calculators, this borrowing calculator is built specifically for Australian conditions. It incorporates ATO tax brackets, lending serviceability buffers, and rate-rise stress testing so you can see not just what you might borrow today — but how rising interest rates could impact your capacity. What You’ll Get • An estimated borrowing range • Repayment estimates at current rates • Stress-tested repayments using higher buffer rates • Insights into how debts and expenses affect borrowing power • Option to download your estimate or book a free strategy call How It Works Step 1: Enter Your Details Add your income, living expenses, existing loans, and deposit amount. The process takes around two minutes. Step 2: Instant Results Receive your estimated borrowing power and see repayment comparisons under different interest rate scenarios. Step 3: Get Personalised Advice If you'd like certainty beyond estimates, you can book a free consultation with a mortgage broker from Northmark Finance. Built for Australians ✔ Uses Australian tax brackets ✔ Applies lender serviceability buffers ✔ Accounts for common lending policies ✔ No credit check required ✔ 100% private — your data stays on your device Why Borrowing Power Matters Many buyers look at property prices before understanding their borrowing capacity. This can lead to unrealistic expectations or financial stress. By calculating your borrowing power early, you gain clarity and confidence befor

Borrowing Calculator's Core Features

Estimated Borrowing Range

Get an instant, realistic estimate of how much you could borrow based on your income, living expenses, existing debts and deposit.

Repayment Estimates

See projected monthly repayments at current interest rates so you can budget for likely repayments.

Rate-Rise Stress Test

Automatically applies lender serviceability buffers and higher benchmark rates to show how interest rate increases would affect your borrowing power.

Australian-Specific Rules

Built with ATO tax brackets, common lender policies and LMI guidance to provide results tailored to the Australian lending environment.

Private & No Credit Check

All calculations happen without touching your credit file and your inputs remain private; option to download a report or book a free broker call for personalised advice.