How Much Deposit Do You Actually Need?
The 20% deposit rule is a guideline, not a requirement. Understanding the actual minimum - and the cost of going below 20% - lets you calibrate a realistic savings target.
- Minimum 5% deposit: Most lenders will approve a loan with a 5% genuine savings deposit. However, anything below 20% triggers Lenders Mortgage Insurance (LMI) - a one-off premium paid by the borrower that protects the lender (not you) in case of default.
- LMI cost: On a $700,000 property with a 10% deposit ($70,000), LMI can cost $12,000–$18,000. It can be capitalised into the loan, meaning you pay interest on it for 30 years. On a 5% deposit on the same property, LMI can exceed $25,000.
- LMI vs waiting: Whether to pay LMI or save a larger deposit depends on property price growth in your target market. If prices rise faster than you can save, entering earlier with LMI may cost less overall. If the market is flat, waiting and saving saves the LMI premium.
- Stamp duty: In most states, stamp duty is a major additional cost - 3-5% of the purchase price on a $700,000 property. First home buyer concessions are available in every state but thresholds vary. NSW: full exemption under $800k, concession to $1M. VIC: full exemption under $600k, concession to $750k. QLD: full concession under $700k. Check your state's current thresholds - these change regularly.
- Genuine savings requirement: Most lenders require that at least 5% of the deposit has been held in savings for 3+ months (genuine savings). Gifts from parents, First Home Super Saver releases, and FHOG grants may qualify but each lender assesses differently.
- Deposit target formula: Purchase price × 20% + stamp duty + conveyancing ($1,500-$3,000) + building/pest inspection ($500-$800) + moving costs. On a $700,000 property in NSW: $140,000 + $26,290 stamp duty + ~$5,000 = approximately $171,000 all-in to avoid LMI and cover costs.
Government Schemes: How to Use Them
Multiple federal and state government schemes reduce the deposit barrier or cut associated costs. Using them in combination can significantly accelerate purchase.
- First Home Guarantee (FHBG): Federal government guarantees up to 15% of a first home buyer's deposit, allowing purchase with just 5% deposit and no LMI. 35,000 places per year. Income caps: $125,000 single, $200,000 couple. Property price caps vary by city - Sydney $900k, Melbourne $800k, Brisbane $700k (check NHFIC for current limits). Apply through a participating lender (most major banks and many non-banks participate).
- Regional First Home Buyer Guarantee: Same structure as FHBG but for properties in regional Australia. 10,000 places per year. Lower price caps apply.
- Family Home Guarantee: For single parents (including single legal guardians) - 5% deposit, no LMI, government guarantees 18%. 5,000 places per year. Income cap $125,000. Does not need to be a first home buyer.
- First Home Super Saver (FHSS): Allows voluntary contributions to super (concessional or non-concessional) to be withdrawn for a first home deposit. Maximum release: $15,000 per financial year contributed, up to $50,000 total. Concessional contributions taxed at only 15% going in, then withdrawn at your marginal rate minus 30% offset. For a 32% marginal rate taxpayer, effective contribution tax rate is 2% - powerful tax-free savings boost.
- FHSS timeline: Apply to the ATO for a FHSS Determination before signing a purchase contract. Once determination issued, you have 14 days to sign a contract (or 24 months for first determination). Funds released within 20 business days.
- First Home Owner Grant (FHOG): State-based grant for newly built or substantially renovated homes only. NSW: $10,000 for new homes under $750k. QLD: $30,000 for new homes. VIC: $10,000 regional only (metro grant abolished). Check your state - eligibility and amounts differ significantly.
- Help to Buy (proposed): Shared equity scheme where the federal government co-purchases up to 40% of a new home (30% existing) with you. Was passed and awaiting full rollout - check NHFIC for current status as at 2026.
Savings Strategies That Actually Work
Discipline matters more than sophistication. These are the savings strategies that reliably accelerate deposit accumulation.
- High-interest savings account: The baseline. Look for accounts with bonus interest conditions - many offer 5%+ p.a. with conditions such as no withdrawals and minimum monthly deposit. ING Savings Maximiser, Macquarie Savings Account, UBank Save Account, and Unibank have all offered competitive rates. Compare at canstar.com.au - rates change frequently.
- Automate on payday: Set up an automatic transfer to your deposit savings account on the day your salary hits. Saving what's left at month-end consistently fails. Saving first, then living on what remains, consistently works.
- The 'pay rise' rule: Every pay rise goes entirely to the deposit savings account - you never see it in your spending account. Lifestyle inflation is the enemy of deposit accumulation.
- Offset against existing debt: If you have a mortgage or car loan with an offset feature, parking savings there reduces interest cost - effectively earning the loan rate (often 6%+) on your savings, risk-free. Better than most savings accounts post-tax.
- Share investing with a timeline: For deposits 4+ years away, a low-cost diversified ETF (VAS, VGS, VDHG) may deliver better returns than a savings account. For deposits within 2 years, market volatility risk is too high - stick to cash. For 2-4 years, a mix of cash and conservative allocation is reasonable.
- Track your savings rate monthly: Know your savings rate (savings as % of take-home pay) every month. A savings rate of 30%+ on a $90k income saves a $140k deposit in approximately 5 years. A savings rate of 15% doubles the timeline.
- Cut the big three: Housing cost, transport cost, and food are typically the three largest budget categories. Reducing any of these by even $200/month adds $2,400/year to savings - a meaningful compounding boost over a 5-year saving period.
Parental Guarantors and Gift Deposits
Family assistance has become increasingly common in Australian first home buying. These arrangements have important implications for both parties.
- Family guarantee (guarantor loan): A parent or close relative uses equity in their own property to guarantee part of the first home buyer's loan - allowing the buyer to borrow without a full deposit and often without LMI. The guarantor's property is at risk if the borrower defaults. The guarantee is typically limited and released once sufficient equity is built.
- Legal and financial advice for guarantors: Guarantors must receive independent legal and financial advice before signing. The lender requires this. Parents should genuinely understand they could lose their home if things go wrong. This is not a formality - it is critical.
- Cash gifts: Parents can give a cash deposit gift with no tax implications for either party (no gift tax in Australia). However, the gift must be documented as a genuine gift (not a loan) with a statutory declaration. Lenders typically require the gift to have been held for at least 3 months before settlement (genuine savings test varies by lender).
- Stamp duty on guarantor property: The guarantee does not trigger stamp duty on the guarantor's property - only the first home buyer's purchase triggers stamp duty (with applicable concessions).
- Estate planning note: Large cash gifts from parents who are approaching retirement age or receiving the Age Pension can have Centrelink implications - gifts over $10,000/yr or $30,000 over 5 years are treated as assets for 5 years under Centrelink's gifting rules.
Start Saving Now - Every Month Matters
The median time to save a 20% deposit in Sydney or Melbourne is now 8-12 years on an average income without government assistance. Using the First Home Guarantee (5% deposit, no LMI) and FHSS (tax-effective super saving) cuts that timeline dramatically for eligible buyers. Start the FHSS contributions from the next financial year - the five-year accumulation window means decisions made today directly determine when you buy.
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