The purchase price is a single data point, not a budget
A property purchase is a , a pile of , years of ongoing ownership costs, and an — stacked together into a single number. This step puts real dollar figures against each layer and shows you the gap between the price tag and the cash you actually need to buy safely.
- 1 in 3 first home buyers had less than $10,000 left after settling .
- Median-income households now need 10.6 years to save a 20% deposit on a median-priced home .
- 65% of first home buyers are already in, or expect to be in, mortgage stress after buying .
When the deposit alone takes a decade, overlooking $30,000 to $50,000 in additional costs is not a rounding error. It is the difference between a plan that works and one that falls apart within months of settlement.
There are four layers, and you need to budget for every one
In Lesson 1 you learned the three-layer cost model: upfront costs, transaction costs, and ongoing costs. This step adds the fourth — the emergency buffer — and puts real numbers against each.
Layer | What it covers | When it hits |
|---|---|---|
1. Deposit | Cash contribution toward the purchase price | Before settlement |
2. Transaction costs | Stamp duty, conveyancing, inspections, loan fees, registration | At or around settlement |
3. Ongoing ownership costs | Mortgage repayments, council rates, insurance, maintenance, utilities | Every month and year you own |
4. Emergency buffer | Cash reserve for unexpected costs after settlement | Immediately after settlement and ongoing |
Layers 1 and 2 are one-off costs. You pay them once. Layer 3 is recurring — it hits your bank account every month for as long as you own. Layer 4 is a safety net you build before you buy and replenish after you use it.
Put real numbers on it: a $650,000 property in Brisbane
Here is what the four layers look like for a first home buyer purchasing a $650,000 established house in Brisbane with a 10% deposit. This example assumes the buyer qualifies for Queensland's first home concession (no stamp duty up to $700,000) and uses the First Home Guarantee to avoid LMI .
Layer 1: Deposit
Item | Amount |
|---|---|
Deposit (10% of $650,000) | $65,000 |
Layer 1 total | $65,000 |
Layer 2: Transaction costs
Item | Amount |
|---|---|
Stamp duty (QLD first home concession) | $0 |
Conveyancing fees | $1,500 |
Building and pest inspection | $600 |
Loan application fee | $600 |
Title transfer and mortgage registration | $400 |
Layer 2 total | $3,100 |
Layer 3: Ongoing ownership costs (annual)
Item | Annual cost | Monthly cost |
|---|---|---|
Mortgage repayments ($585,000 at 6.0%, 30 years) | $42,084 | $3,507 |
Council rates | $2,000 | $167 |
Home and contents insurance | $3,500 | $292 |
Water rates | $1,200 | $100 |
Maintenance (1% of property value) | $6,500 | $542 |
Utilities (electricity, gas, internet) | $4,700 | $392 |
Layer 3 total | $59,984 | $5,000 |
Layer 4: Emergency buffer
Item | Amount |
|---|---|
3 months of ownership costs (excluding mortgage) | $4,500 |
Unexpected repair allowance | $5,000 |
Layer 4 total | $9,500 |
The gap between price and total cost is larger than you think
Amount | |
|---|---|
Purchase price | $650,000 |
Cash needed before and at settlement (Layers 1 + 2) | $68,100 |
Emergency buffer (Layer 4) | $9,500 |
Total cash needed to buy safely | $77,600 |
Ongoing annual cost of owning (Layer 3) | $59,984 |
The purchase price is $650,000. The cash you need to buy safely is $77,600 — that is 11.9% of the purchase price just in upfront cash, before you make a single mortgage repayment .
And this is a best-case scenario. This buyer pays zero stamp duty and avoids LMI entirely through a government guarantee scheme. Remove those two concessions and the cash requirement jumps significantly.
Three variables move the total cost dramatically
Stamp duty. The single biggest variable between states. A first home buyer paying $650,000 in Queensland pays $0. The same buyer in Victoria pays roughly $11,600 after the first home buyer concession . A non-first-home buyer in Victoria pays approximately $35,000 .
LMI. If you do not qualify for a government guarantee scheme and your is below 20%, applies. On a $650,000 property with a 10% deposit, LMI typically costs $12,000 to $16,000 . That single cost can double your Layer 2 total.
Property type. Apartments and townhouses add to Layer 3. Budget $2,000 to $6,000 per year depending on the building and location . Houses avoid strata but tend to have higher maintenance costs.
How to use this framework
- 1Pick a realistic target price for your area.
- 2Fill in Layer 1 — your deposit target and any LMI.
- 3Fill in Layer 2 — use your state's stamp duty calculator and add legal, inspection, and loan fees.
- 4Fill in Layer 3 — mortgage repayments plus every recurring cost from Lesson 4.
- 5Fill in Layer 4 — your emergency buffer (Step 3 of this lesson will help you set this).
- 6Add Layers 1, 2, and 4 together. That is your total cash savings target before you buy.
- 7Check Layer 3 against your income. If ongoing costs exceed 30% of your gross household income, you are in the zone .