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Selling Property Costs Calculator: What You'll Pay

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Last Updated: October 19, 2026

How a Selling Property Costs Calculator Works

A selling property costs calculator is a tool that adds up every expense tied to a sale, then subtracts that total from your expected price to show what you actually keep. Sellers often focus on the sale price and forget the deductions. That gap is where budgets break.

The maths is simple: sale price minus costs equals your net. The hard part is knowing every cost to include. Below, we break down each line item and show you how to run the numbers yourself.

What the Calculator Asks You For

Most calculators request the same core inputs. Get these ready before you start:

  • Expected sale price
  • Agent commission rate
  • Conveyancing or legal fees
  • Marketing and advertising budget
  • Loan payout figure, if you still have a mortgage
  • Any repairs or styling spend

Some tools also ask for holding costs and capital gains estimates. We cover those in Step 5.

Pro Tip Ask your agent for a written fee breakdown before you sign anything. A verbal "around 2%" tells you nothing about GST, advertising add-ons or withdrawal fees.

Step 1: List Every Cost Before You Subtract

Start by listing every cost in one place. Sellers who skip this step get a shock at settlement.

Here is the full picture, grouped the way we would present it to a client:

Cost Category What It Covers Typical Timing
Agent commission Fee for selling your home At settlement
Marketing Photos, floorplan, online ads, signage Before and during campaign
Conveyancing Legal transfer and contract review Start to settlement
Repairs and styling Fix-ups, cleaning, furniture hire Before listing
Loan discharge Payout of your mortgage At settlement
Moving costs Removalists and storage After settlement

Add a contingency line of 5% to 10% on top. Old homes throw surprises, and a repair you did not plan for should not wreck your budget.

Step 2: Use an Agent Commission Calculator

An agent commission calculator multiplies your sale price by the agreed rate. If your home sells for a set figure and the rate is a set percentage, the tool gives you the exact figure in seconds.

A homeowner and a real estate agent sitting at a kitchen table with a laptop, paperwork and a notepad, reviewing figures together in a bright home
A homeowner and a real estate agent sitting at a kitchen table with a laptop, paperwork and a notepad, reviewing figures together in a bright home

The catch is what sits outside the base rate. Ask these questions:

  • Is GST included in the quoted rate?
  • Is there a separate campaign or admin fee?
  • Does the rate change if the home sells above a target price?
  • What happens if you withdraw the listing?

Commission structures vary between agencies, so compare the total cost, not just the headline percentage. Our team puts every fee in writing before a campaign starts.

Watch Out The most common mistake is comparing commission rates without comparing inclusions. A lower rate with extra marketing charges can cost more than a higher all-in rate.

Step 3: Allow for Conveyancing Fees When Selling a Property

Conveyancing fees when selling a property cover the legal work of transferring ownership. A conveyancer or solicitor prepares the contract, handles the title search and manages settlement.

Budget for two parts: a professional fee and disbursements. Disbursements are third-party costs such as title searches and certificate requests. Ask for a fixed quote that lists both.

Timing matters here. Engage your conveyancer before you list, not after you accept an offer. Contract preparation takes time, and a rushed contract creates risk.

The NSW Land Registry Services guide to property transfer explains the title and transfer process in plain terms if you want the detail.

Step 4: Estimate Marketing and Advertising Spend

Marketing is the most flexible line in your budget. It is also the one that most affects your final price.

A basic campaign might cover professional photography, a floorplan and online listings. A premium campaign adds video, social media advertising and direct buyer outreach. Each tier costs more and reaches further.

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Our Bronze, Silver, Gold and Platinum packages sit along that range.

Three rules we give every seller:

  • Spend enough to compete in your suburb
  • Do not pay for channels that cannot reach your buyer
  • Track enquiries so you know what worked

Step 5: Check the Costs of Selling an Investment Property

The costs of selling an investment property go beyond a standard sale. Extra items usually include:

  • Capital gains tax, if the property is not your main residence
  • Tenant notice and end-of-lease obligations
  • Repairs deferred during the tenancy
  • Lost rent between vacancy and settlement

Capital gains rules are complex and depend on your circumstances. The Australian Taxation Office guidance on capital gains tax sets out how the tax applies to property sales. Get advice from a qualified accountant before you list.

Budget for a vacancy period too. An empty investment property still carries rates, insurance and loan repayments.

Step 6: Run a Property Sale Net Proceeds Calculator

A property sale net proceeds calculator brings every line together. Enter your sale price, subtract each cost, and you get your net figure.

Run it three times with different sale prices: a low, mid and high estimate. This shows your realistic range before you commit.

Then check it against your mortgage payout. If the net figure does not cover the loan, you need a different plan.

Key Takeaway Your net proceeds, not your sale price, decide what you can afford next. Run the calculator before you list, not after you accept an offer.

Common Mistakes That Skew Your Calculator Estimate

Most inflated estimates come from a handful of repeated errors. Watch for these:

  • Forgetting GST on commission and marketing
  • Leaving out the loan discharge fee
  • Ignoring styling and repair costs
  • Using the asking price instead of a realistic sale price
  • Skipping the contingency buffer

One more: treating the calculator as a one-off task. Update it when your campaign changes, when you get a repair quote, or when an offer lands. The Australian Securities and Investments Commission's MoneySmart property guidance is a useful plain-English check on the costs involved in a sale.

If you want the numbers checked against your own property, request a free appraisal from Wiseman Realty. We will walk you through each line and show you what you would actually keep.

Frequently Asked Questions

What costs should I include when selling a property?

Start with agent commission, marketing and advertising, conveyancing or legal fees, and any outstanding mortgage payout. Add search and inspection costs if you are buying at the same time, plus loan discharge fees if your lender charges them. For an investment property, factor in capital gains tax and any tenant-related costs. A selling property costs calculator is only as good as the list you feed it, so write every line down before you subtract anything from your sale price.

How do I calculate my net proceeds from a property sale?

Take your expected sale price, then subtract agent commission, marketing spend, conveyancing fees, loan payout and any other agreed costs. What remains is your net proceeds. Run the numbers at a low, mid and high sale price so you can see the range rather than one figure. A property sale net proceeds calculator does this arithmetic quickly, but confirm the final numbers with your conveyancer before you commit to a purchase or a new loan.

Are selling costs different for an investment property?

Yes. An investment property sale usually adds capital gains tax, which depends on your purchase price, holding period and any concessions you qualify for. You may also carry tenant-related costs through to settlement. The agent commission and conveyancing fees work much the same way as a home sale, so the extra lines are the ones to watch. Ask your accountant to estimate the tax figure before you list, because it changes your net result more than most sellers expect.

Do I need to pay an agent when I sell my property?

In most sales, yes. Agent commission is typically a percentage of the sale price, agreed in writing before you list, and it is usually paid at settlement from the proceeds. Ask for the full fee schedule up front, including any administration, auction or advertising charges, so nothing appears at settlement that you did not expect. Comparing quotes on commission alone is a mistake; check what marketing and buyer engagement each fee actually includes.


Selling a home means juggling costs you did not know existed until they appear on a settlement statement. Wiseman Realty removes that guesswork with a free market appraisal, transparent marketing packages and a written fee breakdown before you commit. Our family-run team covers sales, property management and house and land opportunities across the local area. Get started with Wiseman Realty and see your net proceeds before you list.