Australian Financial Calculators

Rent vs Buy Calculator

Compare the true cost of renting vs buying a home in Australia, including stamp duty, interest and opportunity cost.

Home Loan / Amortisation Calculator

Calculate your Australian home loan repayments, total interest payable and full amortisation schedule.

Borrowing Power Calculator

Estimate how much you can borrow for a home loan in Australia based on your income, expenses and deposit.

Stamp Duty Calculator

Calculate stamp duty and transfer costs for all Australian states and territories, including first home buyer concessions.

Landlord / Rental Tracker

Track rental income and property expenses to calculate net yield, cash flow and tax deductions for Australian landlords.

Reverse Mortgage Calculator

Estimate how a reverse mortgage affects your home equity over time with Australian lending rates.

Negative Gearing Calculator

Calculate the tax benefit of negative gearing on an Australian investment property including capital growth projections.

Tax & GST

3 calculators

Tax

Australian Income Tax Calculator (2025-26)

Calculate your Australian income tax using 2025-26 ATO tax brackets, including Medicare levy and LITO.

Tax

GST Calculator

Add or remove Australian GST (10%) from any price. Instant GST-inclusive and GST-exclusive calculations.

Tax

Salary After Tax Calculator

Calculate your Australian take-home pay after tax, Medicare levy and super using 2025-26 ATO brackets.

General

8 calculators

Percentage Change / Discount Calculator

Calculate percentage increase, decrease, or discount between any two values. Fast and accurate.

Working Days Calculator

Count working days between two dates in Australia, excluding weekends and public holidays for all states.

Budget Planner

Plan your monthly budget with income vs expenses breakdown, 50/30/20 rule comparison, and category analysis.

Car Affordability Calculator

Work out how much car you can afford based on your income, expenses, deposit and loan terms.

Simple vs Compound Interest Calculator

Compare simple and compound interest side by side to see the power of compounding over time.

Date Difference Calculator

Calculate the exact number of days, weeks, months and years between any two dates.

Salary Increment Calculator

Calculate your new salary after a pay rise and see the breakdown per pay period.

Working Hours Calculator

Calculate daily, weekly, monthly and annual working hours with FTE comparison and break deductions.

Business & Investment

8 calculators

Business Investment Calculator

Evaluate any business opportunity with ROI, payback period, and investment score analysis. Make smarter investment decisions.

Uber / Gig Economy Monthly Tracker

Track your daily Uber/rideshare income and expenses, with automatic monthly profit, tax estimate, and GST/BAS summary.

Term Deposit Calculator

Calculate interest earned on an Australian term deposit with different compounding frequencies and terms.

Stock Portfolio Calculator

Track your stock portfolio performance with gain/loss analysis, brokerage costs and Australian CGT estimates.

Payroll / Timesheet Calculator

Calculate gross and net pay from hours worked, including overtime, penalty rates, PAYG withholding and super.

Drone Business Cost & Pricing Calculator

Calculate startup costs, annual running costs and minimum pricing for an Australian drone business. Includes a client view showing where quote money goes.

Photography Platform Business Calculator

Plan infrastructure spend, photographer subscription pricing, break-even and revenue projections for a school/event photography platform. Models Cloudflare R2, CDN, VPS and overheads.

Accommodation ROI Calculator (Airbnb / Hotel / Motel)

Model the return on investment for an Airbnb, hotel or motel in Australia. See ROI, payback period, break-even occupancy and a long-term rental comparison.

Energy

3 calculators

Energy

Solar Power Calculator

Calculate the optimal solar panel system size, battery storage, inverter, and estimated savings for your Australian home.

Energy

Solar & Battery ROI Calculator

Estimate the financial return on a rooftop solar and battery installation in Australia, with state-specific FiTs and 2026 rebates.

Energy

EV vs Petrol/Diesel Running Cost Calculator

Compare the running costs of an electric vehicle versus a petrol or diesel car in Australia, including fuel, electricity, servicing, registration and CO2 emissions.