Guarantor is a person (usually a parent or family member) who uses their property or savings as additional security for your loan. If you default, the lender can claim the guarantor's assets to recover the debt.
How Guarantor Loans Work
Instead of using only your property as security, the lender also holds a guarantee over part of the guarantor's property (or savings). This reduces the lender's risk, allowing you to borrow more or avoid Lenders Mortgage Insurance (LMI).
Key mechanisms:
- Guarantor pledges security (usually their home equity)
- You remain responsible for all repayments
- Guarantor only pays if you default
- Guarantee typically covers 20-30% of the property value
- Released once you reach 80% LVR (usually 2-5 years)
Why Use a Guarantor
1. Avoid Lenders Mortgage Insurance (LMI)
Without guarantor:
- Property: $650,000
- Deposit: $65,000 (10%)
- Loan: $585,000 (90% LVR)
- LMI: ~$18,500
With guarantor:
- Property: $650,000
- Deposit: $65,000 (10%)
- Loan: $585,000
- Guarantor secures: $65,000-$130,000 of their home equity
- Effective security: 90% your property + 10-20% guarantor's property = 100-110% total security
- LMI: $0
- Savings: $18,500
2. Borrow with a Smaller Deposit
Example: First home buyer with 5% deposit
- Property: $700,000
- Deposit: $35,000 (5%)
- Loan: $665,000 (95% LVR)
Without guarantor:
- LMI: ~$28,000
- Total upfront cost: $63,000
With guarantor:
- LMI: $0
- Total upfront cost: $35,000
- Savings: $28,000
- Earlier entry into market (don't need to save extra $105,000 for 20% deposit)
3. Increase Borrowing Capacity
Scenario: Self-employed borrower with variable income
- Income: $120,000 (but only $90,000 verifiable via tax returns)
- Borrowing capacity: $450,000
- Property target: $600,000
Without guarantor:
- Can't borrow enough
- Need to buy cheaper property or wait to increase income
With guarantor (parent with $200K income and paid-off home):
- Combined serviceability considered
- Borrowing capacity: $600,000+
- Can purchase target property
4. Access Better Interest Rates
Higher LVR = higher rates:
- 95% LVR: 6.5% p.a.
- 80% LVR (with guarantor making it low-risk): 5.9% p.a.
Impact on $600,000 loan:
- At 6.5%: $3,793/month
- At 5.9%: $3,553/month
- Monthly savings: $240 = $86,400 over 30 years
Types of Guarantor Arrangements
1. Security Guarantee (Most Common)
Guarantor uses their property equity as additional security.
Example:
- You buy: $750,000 property with $75,000 deposit (10%)
- You borrow: $675,000
- Guarantor provides: $75,000-$150,000 security from their $900,000 home (owned outright)
- Bank holds: Mortgage over your property + limited guarantee over 10-20% of guarantor's property
- Guarantor's risk: If you default, bank can claim up to $150,000 from their property
Structure:
- Your property: $750,000 (first mortgage)
- Guarantor's property: $150,000 limited guarantee (capped amount)
- Total security for lender: $900,000 (120% of loan)
2. Cash Deposit Guarantee
Guarantor deposits cash into a locked savings account as security.
Example:
- You buy: $600,000 property
- You have: $30,000 deposit (5%)
- You borrow: $570,000
- Guarantor deposits: $90,000 into a term deposit (locked for 2-3 years)
- Total security: $600,000 property + $90,000 cash = $690,000
Advantage: Guarantor's home is not at risk, only their cash.
Disadvantage: Requires guarantor to have significant liquid savings.
3. Income Guarantee (Less Common)
Guarantor's income is considered in serviceability calculations.
Example:
- Your income: $100,000 (can borrow $500,000)
- Parent's income: $150,000
- Combined serviceability: Can borrow $800,000+
- Guarantor guarantees: Repayments if you can't make them
Risk: Guarantor is liable for full loan repayments if you default.
4. Family Guarantee (Specific Product)
Banks offer "Family Guarantee" home loans designed for this purpose.
Features:
- Guarantor can be parent, sibling, or spouse
- Guarantee limited to 20% of property value
- No LMI required
- Released automatically once you reach 80% LVR
Major lenders offering family guarantees:
- Commonwealth Bank (Family Guarantee)
- Westpac (Family Guarantee)
- NAB (Family Guarantee)
- ANZ (Family Pledge)
How the Guarantee Is Released
The guarantee isn't permanent—it's designed to be released once you build equity.
Release Timeline
Automatic release when you reach 80% LVR:
Example:
- Original loan: $600,000 on $650,000 property (92% LVR)
- Guarantor secures: $78,000 (12% of property value)
After 3 years:
- Loan paid down to: $570,000
- Property value increased to: $720,000
- New LVR: 79% ($570K ÷ $720K)
- Guarantee released: Guarantor's obligation ends
How to accelerate release:
- Make extra repayments
- Pay an extra $500/month = reach 80% LVR 2-3 years faster
- Refinance with new valuation
- If property value increases, request revaluation and release
- Make a lump sum payment
- Bonus, inheritance, or savings injected to reduce LVR
Release Process
Step 1: Request release from lender
- Check current LVR
- Order property valuation ($200-$600)
Step 2: Lender assesses
- Confirms LVR ≤ 80%
- Checks you've maintained repayments
- Verifies income still supports loan
Step 3: Guarantee discharged
- Lender removes charge from guarantor's property title
- Guarantor receives confirmation letter
- You now have a standard loan
Costs: $300-$800 discharge fee (one-off)
Risks for Guarantors
1. Property at Risk
Scenario:
- Guarantor provides $100,000 security from their $800,000 home
- You lose your job and default after 18 months
- Loan balance: $580,000
- Your property sold: $550,000 (market downturn)
- Shortfall: $30,000
- Lender claims $30,000 from guarantor's property
Worst case: If guarantor can't pay, lender forces sale of their property.
2. Limits Guarantor's Borrowing
While the guarantee is active, it reduces the guarantor's equity and borrowing capacity.
Example:
- Guarantor's home: $900,000, fully paid off
- Available equity: 80% = $720,000
- After providing $150,000 guarantee: Available equity = $570,000
- Impact: Guarantor can't access $150,000 for their own purposes (renovations, investment, etc.)
3. Credit Score Impact
If you default, the guarantor's credit score is affected.
Scenario:
- You miss 3 loan repayments
- Default listed on your credit file
- Also listed on guarantor's credit file
- Guarantor's credit score drops 150-250 points
4. Relationship Strain
Financial guarantees can damage family relationships if things go wrong.
Common conflicts:
- Guarantor wants to sell their home but can't until guarantee is released
- Guarantor applies for a loan and is rejected due to the guarantee
- You fall behind on repayments and guarantor has to cover them
5. No Control Over the Loan
Guarantor is liable but has no control over:
- How you manage the loan
- Whether you make repayments on time
- If you refinance or extend the loan term
Who Can Be a Guarantor
Lender Requirements
Eligible guarantors:
- Parents (most common)
- Siblings
- Spouse/de facto partner
- Grandparents (sometimes)
- Adult children (rare)
Not eligible:
- Friends (most lenders)
- Business partners
- Non-relatives
Guarantor must:
- Be an Australian citizen or permanent resident
- Own property in Australia (usually with significant equity)
- Have stable income (employed or retired with pension/super)
- Have good credit history (no defaults, bankruptcies)
- Be under 65-70 years old (age limits vary by lender)
Cannot be guarantor if:
- Property is heavily mortgaged (need 20%+ equity available)
- Retirement age with no ongoing income (some lenders)
- Poor credit history
- Already guarantor for another loan
Legal Requirements
Independent legal advice:
- Guarantor MUST receive independent legal advice before signing
- Solicitor explains risks and obligations
- Certificate of legal advice provided to lender
- Cost: $150-$500 (guarantor pays)
Why this matters:
- Ensures guarantor understands they could lose their home
- Prevents financial abuse (e.g., parent pressured by child)
- Protects lender from guarantor claiming they didn't understand
Real-World Examples
Example 1: First Home Buyer (Success)
Borrower:
- Age: 28, income $95,000
- Savings: $50,000
- Target property: $650,000 in Brisbane
Parents (guarantors):
- Own $850,000 home (paid off)
- Both working, combined income $180,000
Loan structure:
- Property: $650,000
- Deposit: $50,000 (7.7%)
- Loan: $600,000
- Guarantor secures: $100,000 (15% of property value)
- Total security: $750,000 (125% of loan)
- LMI: $0 (saved $22,000)
Outcome after 4 years:
- Loan paid down: $560,000
- Property value: $750,000
- LVR: 74.7%
- Guarantee released
- Parents' obligation ends
- Borrower refinances to better rate
Example 2: Young Couple (Success)
Borrowers:
- Ages: 26 and 27, combined income $160,000
- Savings: $70,000
- Target property: $900,000 in Melbourne
Guarantor (bride's father):
- Owns $1,200,000 home with $300,000 mortgage
- Income: $200,000
- Available equity: $660,000 (80% LVR)
Loan structure:
- Property: $900,000
- Deposit: $70,000 (7.8%)
- Loan: $830,000
- Guarantor secures: $180,000 (20% of property value)
- Total security: $1,080,000 (130% of loan)
- LMI: $0 (saved $32,000)
- Rate: 5.9% p.a. (better than 95% LVR rate)
Repayment strategy:
- Monthly repayments: $4,920
- Extra $1,000/month repayments
- After 3.5 years: LVR reaches 80%
- Guarantee released
- Saved $40,000+ in interest via lower rate and extra repayments
Example 3: Self-Employed Borrower (Cautionary Tale)
Borrower:
- Age: 32, self-employed tradie
- Income: $110,000 (but only $75,000 verifiable)
- Savings: $40,000
- Target property: $550,000
Mother (guarantor):
- Owns $600,000 home (paid off)
- Retired, pension income
Loan structure:
- Property: $550,000
- Deposit: $40,000 (7.3%)
- Loan: $510,000
- Mother secures: $110,000 (20% of property value)
What went wrong:
- Year 2: Borrower's business struggles, income drops to $60,000
- Misses 2 repayments
- Mother makes repayments from her savings ($3,800/month)
- Year 3: Borrower sells property at $520,000 (market dip)
- Loan balance: $490,000
- Sale proceeds after costs: $495,000
- Shortfall covered by mother: $15,000 (in missed repayments)
Lesson: Guarantor loans require stable income—self-employed borrowers with variable income carry higher risk.
Alternatives to Guarantor Loans
1. Save a Larger Deposit
Instead of guarantor:
- Save 20% deposit over 2-3 more years
- No LMI, no guarantee needed
- Full control, no risk to family
Trade-off: Property prices may increase faster than you can save.
Example:
- Today: $650,000 property, need $130,000 deposit (20%)
- You have: $65,000, need to save $65,000 more
- At $2,000/month savings: 32 months to save
- If property prices grow 6%/year: Property now $730,000, need $146,000 deposit
- You're chasing a moving target
2. First Home Guarantee Scheme
Government guarantees part of your loan instead of a family member.
Eligibility:
- First home buyer
- Australian citizen or permanent resident
- Income under $125,000 (singles) or $200,000 (couples)
Benefits:
- Borrow with 5% deposit
- No LMI
- No risk to family members
Example:
- Property: $600,000
- Deposit: $30,000 (5%)
- Government guarantees: 15% ($90,000)
- Your security: $600,000 property + government guarantee
- LMI: $0
Limitations:
- Limited spots (35,000 places per year, competitive)
- Property price caps (varies by region)
- Can't be used for investment properties
3. Lenders Mortgage Insurance (LMI)
Pay LMI upfront or capitalize it into your loan.
Example:
- Property: $700,000
- Deposit: $70,000 (10%)
- Loan: $630,000
- LMI: $23,000 (can add to loan)
- Total loan: $653,000
Advantages:
- No risk to family members
- No guarantee to release later
- Full independence
Disadvantages:
- $20,000-$30,000 extra cost
- Higher LVR = higher interest rate
4. Guarantor Loan Insurance
Third-party insurance that acts as your guarantor (rare in Australia).
How it works:
- Pay annual premium (1-2% of guaranteed amount)
- Insurance company guarantees part of your loan
- If you default, insurance pays lender
Availability: Very limited in Australia, not widely offered.
How to Set Up a Guarantor Loan
Step 1: Find a Lender
Not all lenders offer guarantor loans. Those that do:
- Commonwealth Bank (Family Guarantee)
- Westpac (Family Guarantee)
- NAB (Family Guarantee)
- ANZ (Family Pledge)
- Many non-bank lenders
Best approach: Speak to a NIK Finance broker who can compare guarantor loan options across 100+ lenders.
Step 2: Assess Guarantor's Eligibility
Guarantor needs:
- Property with 20%+ equity available
- Good credit score (700+)
- Stable income or retirement savings
- Under 70 years old (varies by lender)
Calculate available equity:
- Guarantor's property value: $900,000
- Existing mortgage: $200,000
- Usable equity (80% LVR): $720,000 - $200,000 = $520,000
- Available to guarantee: Up to $520,000
Step 3: Get Pre-Approval
Submit application with:
- Your income, employment, credit history
- Guarantor's property valuation
- Guarantor's income and credit history
Lender assesses:
- Your ability to service the loan
- Guarantor's equity and income
- Combined security position
Step 4: Guarantor Gets Legal Advice
Required:
- Guarantor sees independent solicitor
- Solicitor explains risks (could lose property)
- Guarantor signs certificate of legal advice
- Cost: $150-$500
Step 5: Formal Approval and Settlement
Lender prepares:
- Loan contract (you sign)
- Guarantee document (guarantor signs)
- Mortgage over your property
- Limited guarantee/mortgage over guarantor's property
At settlement:
- You receive loan funds
- Mortgages registered on both properties
- Guarantee becomes active
Costs:
- Your loan application: $0-$600
- Guarantor's legal advice: $150-$500
- Property valuations: $400-$1,200 (both properties)
- Mortgage registration: $150-$300 per property
Tax and Legal Implications
For the Guarantor
Capital gains tax (CGT):
- If guarantor's home is their primary residence: No CGT implications
- If guarantor uses investment property: Potential CGT impact if sold while guarantee is active
No tax deductions:
- Guarantor can't claim any tax deductions for providing the guarantee
- Even if they make repayments on your behalf, not deductible
For the Borrower
Standard home loan treatment:
- If owner-occupied: No tax deductions on interest
- If investment property: Interest is tax-deductible as normal
First home buyer benefits:
- Can still access First Home Owner Grant
- Can still get stamp duty concessions
- Guarantor doesn't affect these benefits
Final Thoughts
Guarantor loans are a powerful tool for entering the property market sooner, but they come with significant risks—especially for the guarantor.
When guarantor loans make sense:
- You have stable, high income ($90K+) and can afford repayments
- You're $20,000-$50,000 short of a 20% deposit
- Your parents have significant home equity available
- You plan to build equity quickly (extra repayments)
- Family relationships are strong and financial discussions are open
When to avoid guarantor loans:
- Income is unstable or variable
- You're stretching to afford repayments
- Guarantor can't afford the risk (relying on equity for retirement)
- Family relationships are strained
- You could save a 20% deposit in 6-12 months
Key principles:
- Keep guarantee as small as possible (aim for 10-15% of property value)
- Make extra repayments to release guarantee ASAP
- Have open, honest conversations with guarantor about risks
- Get independent legal and financial advice
- Plan for release (track LVR quarterly)
Before committing:
- Calculate how quickly you can reach 80% LVR
- Stress test: Can you afford repayments if interest rates rise 2-3%?
- Discuss what happens if you lose your job or have financial hardship
- Consider alternatives (First Home Guarantee, waiting to save more)
Typical success scenario:
- Borrow $600,000 with guarantor securing $90,000
- Make minimum + $800/month extra repayments
- Property value grows 5%/year
- Reach 80% LVR in 3.5 years
- Guarantee released, saved $25,000 in LMI
- Total interest savings (lower rate + extra repayments): $45,000+
A guarantor loan can save you $20,000-$35,000 in LMI and help you enter the market years earlier—but only if you can afford the repayments and release the guarantee within 3-5 years. Speak to a NIK Finance broker to structure the guarantee correctly and minimize risk for everyone involved.