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The True Cost of Buying Your First Home (Beyond the Purchase Price)

May 11, 2026 • 6 min read • Last updated: May 2026
House keys and paperwork on a desk

Most first home buyers obsess over one number: the purchase price. Fair enough. It is the giant scary number with six or seven digits attached to it.

But the purchase price is only the headline. The real cash you need to buy a home in Australia is usually deposit plus a stack of extra costs that arrive before settlement, at settlement, or about five minutes after you get the keys and realise curtains are not optional.

If you are trying to work out whether you are actually ready, start with the Borrowing Capacity Calculator, then run the Stamp Duty Calculator and the LMI Calculator. Those three will get you a much more honest number than just looking at the property price and vibing your way into a contract.

The simple formula

For most buyers, the rough formula looks like this:

Total cash needed = deposit + purchase costs + moving-in costs + emergency buffer

That last part matters. You do not want to settle on a home with $14.28 left in your transaction account and a prayer.

1. Your deposit is only the starting point

People talk about 5 percent, 10 percent and 20 percent deposits because they affect your loan size, your monthly repayments, and whether Lenders Mortgage Insurance might apply. But even if you have the deposit sorted, you may still be short on the other upfront costs.

Say you are buying a $700,000 property:

That sounds straightforward until you add stamp duty, legal fees, inspections, insurance, and any LMI. Suddenly your neat little deposit target starts growing legs.

2. Stamp duty is often the biggest non-deposit cost

In many cases, stamp duty is the biggest upfront cost after the deposit. It varies by state and territory, purchase price, and whether you qualify for a first home buyer exemption or concession. The exact rules are set by each state or territory revenue office, so the same purchase price can produce very different results depending on where you buy.

That means two buyers with the same deposit can end up needing very different amounts of cash depending on where they buy. A first home buyer concession can save a serious chunk. Missing one can feel like accidentally setting money on fire. If you want the official version, check your state revenue office before signing anything.

This is why stamp duty should be one of the first numbers you calculate, not a sad little afterthought in week three. Use the Stamp Duty Calculator early, not after you have already fallen in love with a place.

3. LMI can change the maths fast

If your deposit is under 20 percent, your lender may charge Lenders Mortgage Insurance. Moneysmart notes that lenders often require LMI when you have less than a 20 percent deposit. It protects the lender, not you, which is a brutal little bit of branding honesty once you realise you are the one paying for it.

Sometimes LMI is paid upfront. Sometimes it is added to the loan, which reduces the sting today but increases the amount you borrow and the interest you pay over time.

That does not automatically mean low-deposit buying is a bad idea. In some markets, buying sooner with LMI can still beat waiting years to save 20 percent. But you need to know the number. Guessing is how people convince themselves everything is fine right up until the lender emails the formal figures.

If you are testing different deposit sizes, run the LMI Calculator alongside your deposit plan and compare it with your mortgage repayments.

4. Conveyancing and legal fees are real money, not admin fluff

You will usually need a conveyancer or property solicitor to review the contract, handle legal documents, and manage settlement. Fees vary by state, property type, and scope of work, so treat this as a separate line item instead of assuming it will be trivial.

Cheap does not always mean good here. You want someone responsive, clear, and not discovering a title issue two business days before settlement.

Ask what is included. Some quotes cover the standard legal work but charge extra for contract reviews, urgent turnaround, trust account fees, or government searches.

5. Building and pest inspections are boring until they save you a disaster

Building and pest inspections can feel like one more annoying cost when you are already bleeding cash. Still, skipping them can be spectacularly expensive if you buy a place with structural issues, water damage, termites, or a bathroom that has been renovated by someone whose main qualification was confidence.

For houses, these checks are often worth every dollar. For apartments, pest risk may be lower depending on the building, but strata reports, special levies and building defects can matter even more.

At minimum, budget for due diligence before you buy, not after. Regret is a terrible renovation strategy.

6. Lender fees and valuation fees can still show up

Some home loans come with low or no upfront fees. Some do not. Depending on the lender and product, you might run into application fees, settlement fees, valuation fees, annual package fees, or discharge fees later if you refinance.

This is one reason comparing loans on rate alone is a trap. A slightly higher rate with fewer fees or better features can sometimes work out better than the apparently cheaper option.

Before you commit, check the comparison rate and ask what fees apply now, yearly, and if you exit later.

7. Home insurance often needs to start from settlement

If you are buying a detached house, building insurance is commonly part of the pre-settlement checklist. If you are buying a strata apartment or townhouse, the building itself may already be covered by the owners corporation, while your own contents or landlord cover is separate again.

The exact timing depends on the contract and state practice. Consumer Victoria and NSW Government guidance both make the general point that buyers should check when risk passes and when insurance should start, rather than assuming settlement day is always the answer. The main point is simple: insurance is not a post-settlement surprise purchase. It belongs in the upfront budget.

8. Adjustments, strata and council rates can sneak into settlement

At settlement, there can be adjustments for council rates, water rates, and strata levies, depending on what the seller has already paid and the settlement date. These are not random junk fees. They are normal settlement adjustments, but buyers often forget they exist until they see the final statement.

If you are buying an apartment or townhouse, also pay attention to ongoing strata levies and whether there is a special levy on the horizon. A unit that looks affordable can get a lot less charming when the building needs expensive remedial works.

9. Moving costs are annoying, but still count

Moving is one of those costs everyone knows about and still somehow underestimates.

You might need:

Useful first-home move-in gear from Amazon
A basic tool kit, furniture mover, moving boxes, packing tape, and a fireproof document pouch are the kind of boring purchases that become very handy on settlement week.

And then there is the post-settlement spending burst. New locks. A fridge. Curtains. A lawn mower. Twelve trips to Bunnings for things you were absolutely not buying today. It adds up fast.

10. Keep a cash buffer after settlement

This is the part that separates a stressful purchase from a manageable one. Even if the bank says you can borrow the money, you still want a bit of breathing room after settlement.

A buffer helps with rate rises, repairs, appliance replacement, and the general weirdness of home ownership. Houses have a funny habit of revealing personality flaws after you move in.

Try not to use every last dollar on the transaction itself. A home that leaves you instantly cash-broke is not automatically affordable just because the loan was approved.

A quick worked example

Imagine a first home buyer is purchasing for $700,000 with a 10 percent deposit.

That buyer may need noticeably more than $70,000 in available cash to get through the purchase comfortably. That is why first home buyers who only track the deposit often feel close, then suddenly not close at all.

What to do next

  1. Estimate your borrowing capacity
  2. Calculate your likely stamp duty
  3. Test whether LMI applies at your deposit level
  4. Add a line item for legal fees, inspections, insurance and moving costs
  5. Keep a post-settlement buffer so the purchase does not wipe you out

The buyers who look calm are not magically richer. Usually, they just did the full maths earlier.

Final word

The purchase price gets the attention, but the true cost of buying your first home is everything wrapped around it: taxes, fees, insurance, inspections, moving costs, and the buffer that stops your first month of home ownership turning into a financial slapstick routine.

Do the ugly numbers early. Future you will be extremely smug about it.

Sources: ASIC Moneysmart, Lenders Mortgage Insurance, Consumer Victoria, before property settlement, NSW Government, exchanging contracts and settlement.