What this calculator estimates
A sale price is not the amount that reaches the seller. Agent commission, advertising, legal work, property presentation, lender discharge and settlement-related costs can all reduce the proceeds.
This tool keeps those costs separate so you can replace each line with a written quote. It does not estimate the value of the property and it does not choose an agent or method of sale.
Methodology
Agent commission = sale price x entered commission rate, or the fixed commission entered.
Total selling costs = agent commission + all other entered sale costs.
Net proceeds before loan and tax = sale price - total selling costs.
Cash after loan payout, before tax = net proceeds - entered loan payout.
If the commission quote excludes GST, the calculator adds 10% to the entered percentage result or fixed amount. It does not add GST to the other cost fields because those should be entered from their GST-inclusive quotes.
Worked example
Assume an expected sale price of $900,000 and a 2% commission that already includes GST. The seller enters $4,000 for marketing, $2,000 for conveyancing, $700 for an auctioneer, $1,200 for presentation work and $350 for a lender discharge fee.
- Agent commission: $18,000.
- Other entered selling costs: $8,250.
- Total selling costs: $26,250.
- Net proceeds before loan payout and tax: $873,750.
If the lender payout figure were $500,000, the remaining cash before tax would be $373,750. That figure is not profit because it does not account for the original purchase, buying costs, improvements, holding costs or tax.
Checks before relying on the estimate
- Read the agency agreement and confirm whether commission is fixed, percentage-based or tiered.
- Check whether each quote includes GST.
- Request an itemised marketing plan and written schedule of outgoings.
- Use a current lender payout figure close to settlement where possible.
- Keep sale-cost invoices if the property may be subject to capital gains tax.
Related calculators and guides
- Capital Gains Tax Calculator for a separate general tax estimate.
- Home Equity and LVR Calculator for the current value and loan-balance gap.
- Property Settlement Process for the transaction timeline.
- Conveyancing and Settlement Guide for legal and settlement context.
Sources
- Consumer Affairs Victoria: Selling property with or without an agent, checked 23 July 2026.
- NSW Government: Agency agreements for the sale of property, checked 23 July 2026.
- Australian Taxation Office: What is capital gains tax?, checked 23 July 2026.
Limitations
This tool does not model tiered commission agreements, settlement adjustments, mortgage interest to settlement, fixed-loan break costs, early repayment costs, capital gains tax, tax deductions or legal obligations. It is not a valuation, settlement statement, legal advice, tax advice or a recommendation.