Small business calculator guides
Learn how Australian GST, freelance hourly pricing, product markup and margin, and break-even estimates work. Each guide explains the formula, a worked example and the assumptions behind the related free calculator.
How to Calculate GST in Australia: Add 10% to a Price
Learn the standard Australian GST calculation, how to add 10% to a GST-exclusive price and how to check the result with a free GST calculator.
Read guide →GST · Price breakdownHow to Remove GST from a Price in Australia
Find the pre-GST amount and GST component in a GST-inclusive total. Includes the divide-by-11 formula, a worked example and common mistakes.
Read guide →Freelance pricing · AustraliaHow to Set a Freelance Hourly Rate in Australia
Estimate a freelance hourly rate from your annual pay goal, business costs, billable hours and buffer, with an example and planning checklist.
Read guide →Freelance pricing · Billable timeHow to Estimate Freelance Billable Hours
Estimate annual client-billable hours for freelance pricing. Separate available work time from admin, marketing, leave and non-billable tasks.
Read guide →Product pricing · Markup and marginMarkup vs Margin: What Is the Difference?
Understand markup and gross margin with formulas and a worked Australian dollar example. Use the calculator to compare product pricing measures.
Read guide →Product pricing · Target marginHow to Calculate a Selling Price from a Target Margin
Use the target gross margin formula to estimate a product selling price from unit cost. Includes an example and markup comparison.
Read guide →Small business planning · Break-evenHow to Calculate a Small Business Break-Even Point
Estimate break-even revenue using fixed costs and variable-cost share. Includes the formula, a worked example and calculator assumptions.
Read guide →Small business planning · Sales targetBreak-Even Sales: Revenue vs Number of Units
Understand break-even revenue and the estimated number of sales needed to cover costs, with formulas and a worked example.
Read guide →About these guides
These guides are general educational information for Australian sole traders, freelancers, product sellers and small businesses. They explain simplified calculator assumptions; they are not accounting, tax or financial advice. Follow official Australian Government links for current rules and advice specific to your circumstances.