The 5% Deposit Scheme: What Every First Home Buyer Needs to Know

The expanded Home Guarantee Scheme has been making headlines, and for good reason. Since October, first home buyers can now purchase property with just a 5% deposit—no income caps, no placement limits, and higher property price thresholds. On paper, it sounds like a dream come true. In reality? It's more complicated than that.

As a mortgage broker, I've been fielding countless questions about this scheme. While it's opened doors for some buyers, it's also creating situations that keep me up at night. Let me share what you really need to understand before you jump in.

How the Scheme Actually Works

The Home Guarantee Scheme allows eligible first home buyers to purchase with just 5% down, avoiding the significant cost of Lenders Mortgage Insurance (LMI). For context, on a $700,000 property, you'd need only $35,000 instead of the traditional $140,000 for a 20% deposit.

The government effectively guarantees part of your loan, which eliminates the need for LMI—a cost that would typically run between $27,000 and $37,000 depending on the property value. That's substantial savings on day one.

Since the October expansion, banks have reported unprecedented demand. One lender even had to pause broker pre-approvals temporarily due to the surge in applications. The scheme is clearly resonating with frustrated renters who've watched property prices climb while they save.

The Real Cost Most People Miss

Here's what doesn't make headlines: borrowing 95% of a property's value will cost you significantly more over the life of your loan.

Recent analysis shows that on a median dwelling of around $849,000, a 5% deposit results in approximately $842,000 in interest payments over 30 years. Compare this to a 20% deposit scenario, where you'd pay around $709,000 in interest. That's a difference of $133,000—and that's assuming rates remain stable.

Let's look at a practical example. On a $665,000 loan at 6% interest, you're looking at monthly repayments of nearly $4,000, or about $47,844 annually. If rates tick up just one percentage point to 7%, that's an additional $5,244 per year you'll need to find.

When you're stretched to your absolute borrowing limit with minimal equity, there's very little room for error.

When Things Go Wrong: A Cautionary Tale

Recently, a Sydney couple's story highlighted the risks I worry about. They saved $40,000, used the 5% scheme to buy an apartment in early 2024, and thought they were on their way. Within months, they discovered serious waterproofing issues. Their strata fees jumped from $1,500 to $2,500 per quarter. The neighbourhood proved problematic, with constant noise and harassment from neighbors.

Eighteen months in, they moved out. Now they're paying both rent at their new place and the mortgage on a property they can't sell. Five weeks on the market—zero interest. Their agent wants them to drop the asking rent $150 below market rate just to attract tenants. They're facing a lose-lose situation: sell and break even (locking themselves out of a rising market), or hold on and risk bankruptcy.

This isn't a fictional worst-case scenario—it's happening right now.

The Market Impact You Should Understand

There's robust debate about what this scheme means for property prices overall. Treasury estimates a modest 0.5% price increase over six years. However, the Insurance Council of Australia suggests it could push prices up by 10% in the first year alone.

What we're already seeing is clear: properties below the scheme's price caps are appreciating faster than those above the caps. More buyers with access to finance competing for the same properties inevitably puts upward pressure on prices. It's basic supply and demand.

Domain's chief economist has noted that the scheme could "supercharge certain sub-sectors of the market," particularly at the entry level. AMP's chief economist warned that bringing forward demand when supply remains constrained will boost prices, potentially worsening affordability over time.

The Vulnerability Factor

With only 5% equity in your property, you're exposed in ways that many first-time buyers don't fully appreciate:

Job Loss or Income Reduction: If your income drops even temporarily, you might struggle to refinance because lenders will reassess your capacity to service the loan.

Property Value Decline: If property values fall even modestly, you could find yourself in negative equity — owing more than your home is worth. This makes selling or refinancing extremely difficult.

Unexpected Costs: Major repairs, strata increases, or changes in circumstances can quickly eat into whatever financial buffer you have left after stretching to buy.

Interest Rate Movements: While we've seen rates hold recently, they can move in either direction. Higher rates mean higher repayments with very little equity cushion to fall back on.

One difficult period—a health issue, relationship breakdown, or unexpected expense—and you're in genuine trouble.

A Balanced Perspective

I don't want to be entirely negative about the scheme. For some buyers in specific circumstances, it can work well. If you have strong, stable income, genuine savings discipline, and you've purchased a quality property in a solid location at a fair price, the scheme can help you build equity sooner than continuing to rent.

The savings on LMI are real and significant. And for buyers who would otherwise watch prices rise faster than they can save, there's a genuine argument for entering the market sooner.

But—and this is critical—you need to be honest with yourself about your situation.

Questions to Ask Before You Use the Scheme

If you're considering the 5% deposit route, work through these questions carefully:

Financial Resilience: Could you still make repayments if your income dropped by 20% for six months? Do you have genuine emergency savings separate from your deposit?

Property Due Diligence: Have you done thorough building and pest inspections? Do you understand all the ongoing costs (rates, strata, insurance, maintenance)? Have you researched the area extensively?

Interest Rate Scenario Planning: Can you afford repayments if rates increase by 2%? What about 3%?

Long-Term Stability: Are you confident about your employment situation? Are you in a stable relationship if buying with a partner? Do you plan to stay in the area for at least five years?

Alternative Options: Have you explored other pathways like the First Home Super Saver Scheme? Could family assist with a larger deposit? Would buying in a different area or property type give you more buffer?

What I Recommend

My approach with clients considering this scheme is straightforward: proceed with eyes wide open, or don't proceed at all.

If you're going to use the 5% scheme, I strongly encourage:

1. Increase Your Deposit If Possible: Even getting to 10% instead of 5% makes a material difference to your risk profile and loan serviceability.

2. Maintain an Emergency Buffer: Aim for at least six months of expenses in accessible savings after settlement, separate from your deposit.

3. Be Conservative with Borrowing: Just because you qualify for a certain amount doesn't mean you should borrow it. Leave yourself breathing room.

4. Do Extensive Due Diligence: Don't rush. Inspect thoroughly. Research comprehensively. Understand exactly what you're buying.

5. Plan for Rate Rises: Assume rates will go up and make sure you can still afford repayments at higher levels.

6. Consider Your Exit Strategy: If things don't work out, what are your options? Can you rent it out if needed? Could you afford to sell even at a loss?

The Bottom Line

The 5% Home Guarantee Scheme isn't inherently good or bad—it's a tool, and like any tool, it can be used wisely or poorly.

I've seen situations where it's enabled responsible buyers to enter the market successfully. I've also seen situations where it's set people up for significant financial stress. The difference usually comes down to preparation, research, and honest self-assessment.

My job as your mortgage broker isn't to push you into the biggest loan possible—it's to help you make informed decisions that serve your long-term financial wellbeing. Sometimes that means encouraging you to wait a bit longer and save more. Sometimes it means finding creative solutions to improve your position.

If you're considering using this scheme, let's talk it through properly. I'll help you understand your true borrowing capacity, stress-test different scenarios, and explore all your options—including whether usingthe scheme right now is actually in your best interest.

Thinking about using the 5% deposit scheme? Contact Phil Aldridge for an honest conversation about whether it's right for your situation. Book a consultation today to review your circumstances and explore all your options before making one of the biggest financial decisions of your life.

The information in this article is general in nature and does not constitute financial advice. Government schemes and lending criteria are subject to change. Always seek professional advice tailored to your individual circumstances.