$22,000. That's what Lenders Mortgage Insurance could cost on a $900,000 home loan — a fee most first home buyers don't see coming until it's too late.
The number that triggers it? Your loan to value ratio. Get it right, and you skip the fee entirely. Get it wrong, and you're handing over a year's worth of savings before you've even moved in.
Here's how LVR actually works — and how to make it work for you.
What Is Loan to Value Ratio?
Your loan to value ratio is simple maths. It's the size of your loan divided by the value of the property, expressed as a percentage.
The formula:
LVR = (Loan Amount ÷ Property Value) × 100
Buying a $800,000 home with a $160,000 deposit? Your loan is $640,000. Your LVR is 80%.
Think of it like a seesaw. On one side sits your deposit — the equity you're bringing. On the other sits the lender's money. The more you bring, the lower your LVR. The less you bring, the higher it climbs — and the more the lender wants protection.
That protection is where the costs start stacking up.
Why Lenders Care About Your LVR
From a lender's perspective, LVR measures risk. The higher the ratio, the more of their money is on the line.
Here's how they think about it:
| LVR Range | What the lender sees | What it means for you |
|---|---|---|
| Under 60% | Very low risk | Best interest rates, no LMI, easiest approval |
| 60–80% | Standard risk | Competitive rates, no LMI, smooth process |
| 80–90% | Higher risk | LMI typically applies — could cost $8,000–$25,000+ |
| 90–95% | Much higher risk | LMI increases sharply, fewer lenders will approve, stricter criteria |
| Over 95% | Most lenders won't touch it | Very limited options |
The magic threshold? 80%. Below it, most lenders waive Lenders Mortgage Insurance entirely. Above it, the cost climbs fast.
But here's the part most guides skip: 80% isn't the only threshold that matters. And for some borrowers, it's not even the right target.
The Real Cost of LMI — in Dollars, Not Jargon
Lenders Mortgage Insurance protects the lender (not you) if you can't repay. You pay the premium. It's added to your loan or paid upfront at settlement.
Here's what LMI typically looks like on a $900,000 property:
| Your deposit | LVR | Estimated LMI cost |
|---|---|---|
| $180,000 (20%) | 80% | $0 |
| $135,000 (15%) | 85% | ~$8,500 |
| $90,000 (10%) | 90% | ~$16,000 |
| $45,000 (5%) | 95% | ~$22,000+ |
Read that again. The difference between a 10% deposit and a 20% deposit isn't just $90,000 in savings. It's also ~$16,000 in LMI bolted onto your loan — accruing interest for the next 30 years.
That's not a fee. That's a second car you'll never drive.
Estimates based on typical LMI premiums. Actual costs vary by lender, loan size, and LVR.
Everyone Says Save 20%. Here's What They Don't Tell You.
The conventional wisdom is simple: save a 20% deposit, avoid LMI, buy your home. Sensible advice. But it ignores three things.
1. Time has a price tag. If you're saving an extra $90,000 to move from a 10% deposit to 20% on a $900,000 home — at $2,000/month in savings — that's nearly four more years of renting. Four years of rent at $600/week is $124,800. Four years of potential property growth you didn't capture.
2. LMI isn't always the villain. Yes, $16,000 in LMI sounds painful. But if the property grows 5% in a year ($45,000), you're still $29,000 ahead compared to waiting. LMI is a one-off cost. Missed growth compounds.
3. Some borrowers skip LMI entirely — even at 95% LVR. Under certain medico lending policies, doctors and dentists can borrow up to 95% of the property value with no LMI. Allied health professionals can access 90% LVR with no LMI. That $22,000 fee? Gone. The deposit barrier? Dramatically lower.
Not every borrower qualifies. But if you're in a qualifying profession and nobody's told you about these policies — that's a conversation worth having.
Same Buyer. Two Paths. Very Different Outcomes.
Let's make this real.
Meet Dr Sarah. She's a registrar earning $135,000. She's got $50,000 saved and $65,000 in HECS. She's looking at a $950,000 apartment in Melbourne.
Path A — "Wait and save 20%"
Sarah needs $190,000 for a 20% deposit. She has $50,000. At $2,500/month savings, she'll reach her target in about 4.5 years.
During that time:
- Rent paid: ~$140,000 (at $600/week)
- Property growth at 4% pa: the apartment is now worth ~$1,130,000
- New 20% deposit needed: $226,000
- She's chasing a moving target
Path B — "Buy now with 5% deposit under medico policy"
Sarah puts down $47,500 (5%). Under the medico lending policy, her HECS is excluded from borrowing power calculations. LMI is waived entirely.
- LMI saved: ~$24,000
- HECS impact on borrowing power: $0 (excluded)
- She buys at $950,000 today
- After 4.5 years at 4% growth: her property is worth ~$1,130,000
- Equity built: ~$180,000 (growth) + repayments
The gap
In Path A, Sarah spent $140,000 in rent building someone else's equity. In Path B, she spent that time building $180,000+ of her own. The difference in wealth position after 4.5 years is roughly $320,000.
Same doctor. Same savings. Different broker.
Based on typical scenarios. Individual outcomes vary. Property values can fall as well as rise.
How to Improve Your LVR Before You Apply
Even if you don't qualify for a specialist policy, there are practical ways to strengthen your position.
Boost your deposit side:
- Use the First Home Owner Grant (where eligible — up to $10,000 in VIC, varies by state)
- Access the Australian Government 5% Deposit Scheme (formerly the First Home Guarantee) — buy with a 5% deposit, the government guarantees the rest to 80%, no LMI
- Accept a family gift or guarantee to bridge the gap
- Check if your employer offers any salary packaging toward a deposit
Reduce the property side:
- Consider a suburb 15 minutes further out — sometimes $100K cheaper
- Look at apartments or townhouses as a stepping stone
- Buy in a growth corridor now rather than an established suburb later
Structure the loan smarter:
- The Wity Borrowing Power Assessment models your capacity across 45+ lenders. One lender's 85% LVR rejection could be another's 90% LVR approval — with better terms. The gap between lenders is wider than most people realise.
LVR Isn't Just for Buying — It Moves After Settlement
Here's something most first home buyers don't think about: your LVR changes every year.
As you make repayments, your loan balance drops. As property values grow, your property value rises. Both push your LVR down — and that unlocks new options.
At 90% LVR: You bought. You're in. At 80% LVR: You can refinance to remove LMI loading and negotiate a sharper rate. At 70% LVR: You may be able to access equity for a renovation or investment deposit. At 60% LVR: You're in the lowest-risk tier. Lenders compete for your business.
This is why an annual Wity Mortgage Health Check matters. Your LVR today isn't your LVR in two years. And the rate you accepted at 90% LVR shouldn't be the rate you keep at 75%.
What To Do Next
Your LVR shapes your deposit target, your LMI costs, your interest rate, and your borrowing power. It's worth understanding — but it's worth modelling even more.
Want to see how your LVR changes across different deposit levels and lender policies? Start the Wity questionnaire → — free, no credit check, two minutes.