Buying your first home with a 5% deposit in 2026: costs, caps and catches

Entering the housing market with only a 5% deposit in 2026 feels both more achievable and more expensive than ever. Government schemes have widened access, but higher interest rates, lender buffers, and a new debt-to-income cap mean the true cost of that smaller deposit goes far beyond the 5% itself.

If you are targeting a first home this year, knowing exactly what you will pay — and the restrictions that apply — makes the difference between a smooth settlement and a stressful rejection.

What a 5% deposit actually costs in dollar terms

Let’s start with the biggest number: the property price you can afford. Under the First Home Guarantee (FHBG) from July 2026, the price caps are:

· Sydney – $1.5 million · Melbourne – $950,000 · Brisbane – $1 million · Perth – $850,000

For a $800,000 apartment in Brisbane (well within the cap), your 5% deposit is $40,000. But that is only the beginning.

The total upfront cash you need on settlement day includes:

· Deposit – $40,000 (5% of $800,000) · Stamp duty – Varies by state. In Queensland, first-time buyers on properties up to $500,000 pay zero; between $500,001 and $550,000 you pay a reduced rate. For an $800,000 property, stamp duty is roughly $21,000 (no full exemption applies above $550k). · Lenders Mortgage Insurance (LMI) – If you go with a standard loan and a 5% deposit (without a guarantee), LMI can be $20,000 to $30,000 (capitalised or paid upfront). At 5% down, typical LMI premiums run 3%–4% of the loan amount. · Conveyancing and legal fees – $1,500 to $3,000 · Building and pest inspection – $600 to $900 · Loan application and valuation fees – Often $0 to $600 · Prepaid expenses (council rates, water, strata levies) – $1,000 to $2,500 · Moving and connection costs – $1,000 to $3,000

Total upfront cash for that $800,000 purchase: roughly $65,000 to $100,000, depending on whether LMI is capitalised and how much you pay in stamp duty.

If you use the FHBG and avoid LMI, your upfront cash drops to about $45,000 to $55,000 — still more than the deposit alone, but significantly less than a conventional low-deposit loan.

The 2026 borrowing environment: rates, buffers and serviceability

The Reserve Bank of Australia held the cash rate at 4.35% through early 2026. The lowest advertised variable rates for owner-occupiers sit near 5.69%, though most lenders offer around 6.0%–6.5% for high-LVR loans.

But the headline rate is only half the story. APRA requires banks to assess your ability to repay at a rate at least 3 percentage points higher than the product rate. On a 6% loan, that means an assessment rate of 9%. For a $760,000 loan (95% of $800k), the monthly repayment at 9% is approximately $6,115 (principal and interest over 30 years). Your income needs to support that.

Lenders generally want your total debt repayments (including any car loan, HECS, or credit card minimums) to be no more than about 30%–40% of your gross income. With the 6x debt-to-income (DTI) cap introduced in February 2026, you can borrow no more than six times your gross annual income. For a $760,000 loan, your income must be at least $126,667 per year. If you are a couple earning a combined $140,000, that works — but barely.

First Home Guarantee in 2026: caps and what 'no LMI' really means

The FHBG is the most direct route to buying with a 5% deposit without paying LMI. As of July 2026, the scheme has no income cap, which broadens access dramatically. However, the price caps remain strict:

· Sydney – $1.5M · Melbourne – $950,000 · Brisbane – $1M · Perth – $850,000

If your target property exceeds the cap, you cannot use the guarantee. You also need to be an individual (not a trust or company) and a first-home buyer (or have not owned property in Australia in the last 10 years). The government acts as guarantor for up to 15% of the purchase price, meaning the lender does not require LMI for the portion above 80%.

Crucially, "no LMI" does not mean no fees. You still pay the lender’s standard establishment and ongoing costs. And if your circumstances change and you need to refinance during the guarantee period (usually the first 5 years or until you reach 80% LVR), you may be restricted.

Hidden costs first-time buyers overlook

Beyond stamp duty and LMI, several costs surprise many buyers who focus only on the deposit.

· Strata and body corporate fees – Common for apartments and townhouses. A $800k apartment in Sydney might have quarterly levies of $1,500 to $3,000. Factor these into your ongoing budget. · Council rates – Usually $1,000 to $3,000 per year depending on the location and property value. · Water and sewerage charges – Typically $700 to $1,200 annually. · Home and contents insurance – Around $1,200 to $2,500 per year for the first year (some lenders require this before settlement). · LMI capitalisation cost – Even if you use a standard loan and capitalise LMI, the premium adds to your loan balance, meaning you pay interest on it for the life of the loan. A $25,000 LMI premium at 6% over 30 years costs nearly $45,000 in interest. · Cost of delays – Settlement delays can incur penalty interest. Budget for a few days of buffer.

One often-missed cost: the opportunity cost of a smaller deposit. With 5% down, your LVR is 95%, so your interest rate is typically higher by about 0.2% to 0.5% compared to an 80% LVR loan. Over the first 5 years, that can add thousands to your repayments.

How the DTI cap affects your borrowing power

From February 2026, the Australian Prudential Regulation Authority (APRA) requires all lenders to enforce a 6x debt-to-income cap. This means your total borrowing cannot exceed six times your gross annual income.

Example: if you earn $130,000, your maximum allowable loan is $780,000. Add your 5% deposit of $41,053, and your property price limit is $821,053 — which falls inside most FHBG caps, but only just. If you have any other debts (car loan, HECS), those reduce your effective serviceability further.

The DTI cap is especially restrictive for buyers in high-priced markets. In Sydney, the median house price exceeds $1.4 million, meaning a 5% deposit (plus costs) requires a loan around $1.33 million. You would need an income of at least $221,667 to meet the 6x DTI cap. That is well above the average dual-income household.

The cumulative effect: while the FHBG removes the LMI hurdle, the DTI cap and high assessment rates still limit many first-time buyers.

FAQ

Q: What is the minimum deposit needed for a $800,000 home with a 5% deposit? A: You need at least $40,000 for the deposit itself. However, total upfront costs including stamp duty, conveyancing, and inspections are typically $50,000 to $65,000 (assuming you use the FHBG and avoid LMI). Without the guarantee, add $20,000–$30,000 for LMI.

Q: Can I buy a house worth $1.2 million in Sydney with a 5% deposit in 2026? A: Yes, if the property is eligible and you meet the criteria. The Sydney FHBG price cap is $1.5 million from July 2026, so a $1.2M property qualifies. Your 5% deposit is $60,000, and you avoid LMI. However, you need an income of at least $190,000 (for a $1.14M loan) to pass the 6x DTI test.

Q: Does the First Home Guarantee cover apartments? A: Yes, as long as the purchase price is within the cap for your city. There are no restrictions on property type (house, apartment, townhouse). The property must be in an existing dwelling (or a new home under construction with a builder) and you must occupy it within 12 months.

Q: How does the 3% APRA buffer apply to a 5% deposit loan? A: Lenders test your ability to repay at the higher of the loan rate plus 3% or a floor rate (usually around 7.5%). For a 6% loan, the assessment rate is 9%. This means your monthly repayment is calculated at $7,500+ on a $760,000 loan, even though your actual payment at the introductory rate is lower.

Q: Can I refinance out of the Guarantee before I reach 80% LVR? A: It depends on your lender. Most allow you to refinance to a standard loan at any time, but you will then need LMI unless your LVR has dropped below 80%. Refinancing within the first few years often makes sense only if rates fall significantly or your property value increases.

Sources

· APRA – “Macroprudential Policy: Debt-to-Income Cap” (February 2026 update). https://www.apra.gov.au/news/2026 · Reserve Bank of Australia – Cash Rate Target, April 2026. https://www.rba.gov.au/ · Housing Australia – First Home Guarantee Scheme Guidelines, July 2026. https://www.housingaustralia.gov.au/ · Queensland Revenue Office – First Home Concession and Transfer Duty Rates, 2025–26. https://qro.gov.au/ · NSW State Revenue – First Home Buyer Assistance Scheme (effective July 2026). https://www.revenue.nsw.gov.au/

Ready to calculate your total upfront cost with a 5% deposit? Use our deposit savings calculator to see the full picture — including LMI, stamp duty, and your true borrowing capacity.

[Link to /calculators/deposit-savings/]

Want to compare whether the FHBG or a standard loan with LMI works best for your situation? Open our interactive widget below and enter your income, property price, and city to see a side-by-side cost breakdown.

Related guides

· First Home Guarantee 2026: eligibility and price caps · FHBG vs LMI: which option saves you more? · First Home Grants and Concessions in 2026