Smart tools for smarter
financial decisions
iBudget offers six powerful calculators designed for Australian home buyers, investors, and everyday users. Free, fast, and built with accuracy in mind.
Real-time Results
Every calculation updates instantly as you type — no submit button required.
ASIC Compliant
Mortgage and borrowing power calculators include required ASIC disclaimers.
Mobile Friendly
Fully responsive design works seamlessly on phones, tablets, and desktops.
All Calculators
Choose a calculator below to get started. All tools are free, require no sign-up, and work entirely in your browser.
Mortgage Repayment
Calculate monthly, fortnightly, and weekly repayments. Includes a full amortisation schedule and accelerated repayment savings.
Extra Repayments
Find out how much time and interest you save by making additional repayments on your mortgage.
Borrowing Power
Estimate your maximum borrowing capacity based on income, expenses, dependants, and the APRA 3% buffer.
Stamp Duty
Calculate stamp duty for all 8 Australian states and territories. Covers first home buyers, owner-occupiers, and investors.
GST Calculator
Instantly add or remove 10% GST from any amount and see the pre-GST, GST component, and total breakdown.
Compound Interest
Project the future value of your investment with principal, contributions, rate, and compounding frequency.
Save & Compare Your Results
Sign in with Google to save your calculations and load them back at any time. Compare different scenarios side by side.
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