Investment Property Loan is finance used to purchase a property you'll rent out rather than live in. These loans typically have slightly higher interest rates (0.2-0.5% above owner-occupied rates) but offer tax benefits through negative gearing and interest deductibility.
How Investment Loans Work
Investment loans are structured similarly to owner-occupied home loans, but lenders assess them differently due to rental income and tax treatment.
Key differences from owner-occupied loans:
- Interest rates: 0.2-0.5% higher
- Serviceability: Includes rental income (usually 80% counted)
- Interest-only periods: Up to 10 years (vs 5 years for owner-occupied)
- Tax treatment: Interest and expenses are tax-deductible
- Deposit requirements: Often need 10-20% (vs 5-10% for owner-occupied)
Example:
- Property: $650,000 investment unit in Melbourne
- Loan: $520,000 (80% LVR)
- Rate: 6.3% p.a. (vs 5.9% for owner-occupied)
- Structure: Interest-only for 5 years
- Monthly repayment: $2,730 (interest-only)
- Rental income: $2,400/month
- Negative gearing: -$330/month
Interest Rates: Investment vs Owner-Occupied
Rate Comparison (2025)
Owner-occupied variable:
- Standard rate: 5.89-6.19% p.a.
- Competitive rates: 5.79-6.09% p.a.
Investment variable:
- Standard rate: 6.19-6.49% p.a.
- Competitive rates: 6.09-6.39% p.a.
Premium: 0.2-0.5% p.a.
Example on $600,000 loan:
- Owner-occupied @ 5.9%: $35,400/year interest
- Investment @ 6.3%: $37,800/year interest
- Extra cost: $2,400/year
However:
- Investment interest is tax-deductible @ 39% tax rate: $14,742 tax refund
- Net interest cost: $23,058 (actually cheaper than owner-occupied)
Why Investment Rates Are Higher
Lender perspective:
- Higher default risk (tenants can vacate, rental income stops)
- Property is not borrower's primary residence (less emotional attachment)
- More likely to sell if market drops
- Cash flow dependent on rental market
Statistical default rates:
- Owner-occupied: 0.8-1.2% default rate
- Investment: 1.5-2.0% default rate
Higher risk = higher rate.
Interest-Only vs Principal & Interest
Interest-Only Loans
Most common for investment properties.
Structure:
- Interest-only period: 1-10 years (typically 5 years)
- After IO period: Converts to principal & interest
- No principal repayment during IO period
Example:
- Loan: $550,000 @ 6.4% p.a.
- Interest-only repayment: $2,933/month
- Rental income: $2,600/month
- Negative gearing: -$333/month
After 5-year IO period:
- Loan balance: Still $550,000 (no principal paid down)
- Converts to P&I: $3,510/month (25-year term remaining)
- Increase: $577/month
Principal & Interest Loans
Less common for investment properties.
Example:
- Same loan: $550,000 @ 6.4%, 30 years P&I
- Repayment: $3,442/month
- Rental: $2,600/month
- Negative gearing: -$842/month (higher shortfall)
After 5 years:
- Loan balance: $520,000 (paid down $30,000)
- Equity gain: $30,000
- Ongoing repayment: $3,442/month (no payment shock)
Which Is Better?
Interest-only benefits:
- Lower repayments (maximizes cash flow)
- Greater tax deduction (all repayment is interest = 100% deductible)
- More capital for additional investments
P&I benefits:
- Build equity faster
- No payment shock when IO period ends
- Less total interest over loan life
- Lower risk (debt reduces over time)
Most investors choose:
- Interest-only for first 5-10 years
- Refinance before IO period ends (reset to new IO period or convert to P&I)
Rental Income in Serviceability
Lenders count rental income when assessing borrowing capacity—but not 100%.
Rental Income Shading
Standard approach:
- Lenders count 80% of rental income
- Reason: Accounts for vacancies, maintenance, periods between tenants
Example:
- Rental income: $2,600/month ($31,200/year)
- Lender counts: $2,080/month ($24,960/year, 80%)
- Discounted: $6,240/year
Impact on Borrowing Capacity
Scenario: Buying investment property
- Your income: $110,000/year
- Existing home loan: $450,000 (repayment $2,800/month)
- Want investment loan: $550,000 (repayment $3,520/month)
Without rental income:
- Total repayments: $6,320/month
- Income: $9,167/month
- Debt ratio: 69% (too high, declined)
With rental income ($2,600/month, 80% counted):
- Total repayments: $6,320/month
- Rental income offset: -$2,080/month
- Net debt: $4,240/month
- Income: $9,167/month
- Debt ratio: 46% (acceptable, approved)
Rental income makes the difference between approval and decline.
Tax Benefits of Investment Loans
Interest Deductibility
All interest on investment loans is tax-deductible.
Example:
- Investment loan: $600,000 @ 6.3%
- Annual interest: $37,800
- Tax rate: 37% + 2% Medicare levy = 39%
- Tax refund: $14,742
- Net interest cost: $23,058 (effective rate: 3.84%)
Negative Gearing
When expenses exceed rental income, you claim the loss against your salary.
Example:
- Rental income: $28,000/year
- Expenses:
- Loan interest: $37,800
- Strata fees: $4,200
- Council rates: $1,800
- Landlord insurance: $650
- Repairs: $2,500
- Property management (8%): $2,240
- Total expenses: $49,190
- Loss: $21,190/year
Tax benefit:
- Loss: $21,190
- Tax rate: 39%
- Tax refund: $8,264
- Net annual cost: $12,926 (manageable)
Depreciation Benefits
Claim depreciation on building and fixtures.
Example: New $650,000 investment property
- Building value: $450,000
- Depreciation @ 2.5%/year: $11,250
- Fixtures (aircon, carpet, appliances): $8,500/year (diminishing)
- Total depreciation: $19,750/year
Tax benefit:
- Depreciation deduction: $19,750
- Tax rate: 39%
- Tax saving: $7,703/year
Combined tax benefits (negative gearing + depreciation):
- Negative gearing refund: $8,264
- Depreciation saving: $7,703
- Total tax benefit: $15,967/year
This can turn a negatively geared property into a cash-flow positive investment.
LVR and Deposit Requirements
Standard LVR Limits
Investment properties:
- Maximum LVR (with LMI): 90-95% (limited lenders)
- Typical LVR: 80% (avoids LMI)
- Conservative LVR: 70% (best rates)
Owner-occupied:
- Maximum LVR: 95% (with LMI)
- Typical LVR: 80-90%
Lenders are more conservative with investment loans.
Example:
- Investment property: $700,000
- 90% LVR loan: $630,000 (requires LMI ~$22,000)
- 80% LVR loan: $560,000 (no LMI)
- Need $140,000 deposit for no LMI (vs $70,000 for 90% LVR)
Using Equity from Existing Property
Most common strategy: Use equity from home to fund deposit.
Example:
- Your home: $900,000, loan $400,000
- Equity available (80% LVR): $720,000 - $400,000 = $320,000
- Investment property: $650,000
- Deposit needed: $130,000 (20%)
- Stamp duty + costs: $32,000
- Total needed: $162,000 (easily covered by $320K equity)
Structure:
- Increase home loan: $400,000 → $562,000 (access $162,000)
- Investment loan: $520,000 (80% LVR on $650K property)
- Total debt: $1,082,000
Investment Loan Structures
1. Standalone Investment Loan
Single loan for investment property.
Example:
- Investment property: $580,000
- Loan: $464,000 (80% LVR)
- Rate: 6.3% p.a., interest-only 5 years
- Repayment: $2,436/month
Simple structure, easy to track for tax purposes.
2. Split Loan (Fixed + Variable)
Part fixed, part variable for risk management.
Example:
- Investment loan: $550,000
- Split:
- $350,000 fixed @ 5.9% for 3 years (stability)
- $200,000 variable @ 6.4% (flexibility, offset account)
- Weighted average rate: 6.1%
Benefits:
- Protected from rate rises on 64% of loan
- Flexibility to make extra repayments on variable portion
3. Line of Credit for Deposits
Use LOC against home equity for multiple investment deposits.
Example:
- Home equity: $400,000 available
- Line of credit: $400,000 @ 7.0%
- Use for:
- Investment 1 deposit: $120,000
- Investment 2 deposit: $150,000
- Stamp duty/costs: $50,000
- Total drawn: $320,000
- Repay from investment property refinances (90% LVR)
Strategy:
- Draw $120K for deposit
- Settle investment property
- Refinance investment at 90% LVR
- Repay $120K to LOC
- Repeat for next property
4. Debt Recycling
Convert non-deductible debt to deductible debt.
Example:
- Home loan (owner-occupied): $500,000 @ 6.0% (non-deductible)
- Investment property: $450,000 @ 6.4% (deductible)
Strategy:
- Make extra repayments on home loan ($50,000)
- Redraw $50,000 from home loan
- Use as investment property deposit
- $50,000 is now deductible (tax benefit: $19,500 @ 39% rate)
Warning: Complex tax structure—requires professional advice.
Multiple Investment Properties
Building a Portfolio
Example strategy:
Year 1:
- Buy investment property 1: $600,000
- Equity from home: $120,000 deposit
- Investment loan: $480,000
Year 3:
- Property 1 value: $680,000 (growth)
- Loan: $460,000 (paid down slightly)
- Equity in property 1: $220,000
- Use equity for deposit on property 2
Year 3:
- Buy investment property 2: $720,000
- Use property 1 equity: $144,000 deposit
- Investment loan 2: $576,000
Year 6:
- Property 1: $780,000, loan $440,000, equity $340,000
- Property 2: $850,000, loan $560,000, equity $290,000
- Total equity: $630,000
- Buy property 3 using combined equity
Growth over 10 years:
- 3 properties worth: $2,800,000
- Total loans: $1,680,000
- Total equity: $1,120,000
- Rental income: $8,200/month
- Portfolio value: $2.8M from initial $120K deposit
Serviceability Limits
You'll hit serviceability limits before you hit equity limits.
Example:
- Income: $130,000
- Property 1 loan: $480,000 (repayment $2,520/month, rental $2,200)
- Property 2 loan: $576,000 (repayment $3,024/month, rental $2,600)
- Net debt: $5,544 - $4,800 (rental) = $744/month
- Income: $10,833/month
- Debt ratio: 7% (excellent)
Try to buy property 3:
- Property 3 loan: $650,000 (repayment $3,413/month, rental $2,900)
- Net debt: $744 + $513 = $1,257/month
- Debt ratio: 12% (still good)
But total debt-to-income:
- Total debt: $1,706,000
- Income: $130,000
- DTI: 13.1x (too high, declined)
Solution: Wait for income to increase, pay down debt, or use partner's income (joint application).
Risks of Investment Loans
1. Vacancy Periods
Tenant leaves, property sits empty for 6 weeks.
Example:
- Loan repayment: $2,800/month
- Rental income: $2,500/month
- Normal shortfall: -$300/month
During 6-week vacancy:
- Repayment: $2,800
- Rental income: $0
- Shortfall: -$2,800 (+ 6 weeks = -$3,850)
Plus costs:
- Reletting fee (1 week rent): $575
- Cleaning/minor repairs: $800
- Total cost of vacancy: $5,225
Solution: Maintain emergency fund of 3-6 months repayments ($8,400-$16,800).
2. Interest Rate Increases
Rates rise 1.5% over 2 years.
Example:
- Loan: $550,000 @ 6.3% = $2,888/month
- Rate rises to 7.8%: $3,575/month
- Increase: $687/month ($8,244/year)
- Rental increases: $200/month ($2,400/year)
- Net impact: -$5,844/year (must fund from salary)
3. Property Value Decline
Market drops 10% during downturn.
Example:
- Purchase price: $700,000, 90% loan = $630,000
- Market drops 10%: Property worth $630,000
- Negative equity: $0 (can't refinance without bringing cash)
If forced to sell:
- Sale price: $630,000
- Selling costs (agent, legal): $18,000
- Loan payout: $630,000
- Shortfall: $18,000 (you pay from savings)
4. Changes to Tax Laws
Government removes negative gearing benefits (theoretical risk).
Current:
- Loss: $18,000/year
- Tax benefit: $7,020 @ 39%
- Net cost: $10,980
If negative gearing removed:
- Loss: $18,000/year
- Tax benefit: $0
- Net cost: $18,000
- Extra cost: $7,020/year (may not be viable)
Investment Loan Strategies
1. Buy and Hold (Long-Term Growth)
Strategy: Purchase quality property, hold 15-25 years, benefit from capital growth.
Example:
- Buy: $650,000 in 2025
- Hold: 20 years
- Growth: 6% p.a. average
- Value in 2045: $2,080,000
- Loan paid down to: $250,000 (if P&I after 10 years)
- Equity: $1,830,000
2. Renovate and Revalue
Strategy: Buy below-market property, renovate, revalue, access equity.
Example:
- Buy: $550,000 (unrenovated)
- Loan: $440,000 (80% LVR)
- Renovate: $80,000 (from savings or LOC)
- New value: $680,000
- Refinance: 80% of $680,000 = $544,000
- Pull out: $104,000 (covers reno + $24K)
3. High-Yield Strategy
Strategy: Focus on high rental yield, minimize negative gearing.
Example:
- Buy: $450,000 regional property
- Rental yield: 6.5% ($29,250/year)
- Loan: $360,000 @ 6.3% = $22,680/year interest
- Net income: $6,570/year (positive gearing)
- Cash-flow positive from day 1
Downside: Lower capital growth (regional areas grow slower).
4. Dual-Key/Granny Flat
Strategy: Properties with two rentable spaces (dual income).
Example:
- Buy: $780,000 house with granny flat
- Main house rental: $2,600/month
- Granny flat rental: $1,400/month
- Total rent: $4,000/month
- Loan: $624,000 @ 6.3% = $3,276/month
- Positive cash flow: $724/month
Refinancing Investment Loans
When to Refinance
1. Rate is 0.3%+ above market
- Current rate: 6.8%
- Market rate: 6.3%
- Savings on $550,000: $2,750/year
2. Interest-only period ending
- Refinance to new lender with new 5-year IO period
- Avoids payment shock (IO to P&I conversion)
3. Access equity for next purchase
- Property value increased
- Refinance at 80% LVR
- Access equity as deposit for next investment
Example:
- Original: $650,000 property, $520,000 loan (80%)
- 5 years later: $780,000 value, $500,000 loan (paid down slightly)
- Refinance: 80% of $780,000 = $624,000
- Pull out: $124,000 for next deposit
Refinancing Costs
Typical costs:
- Discharge fee (old lender): $350-$800
- Application fee (new lender): $0-$800
- Valuation: $300-$600
- Legal: $300-$600
- Total: $950-$2,800
Break-even analysis:
- Refinancing costs: $1,500
- Annual saving: $2,750 (0.5% on $550,000)
- Break-even: 7 months
Final Thoughts
Investment property loans are powerful wealth-building tools when used strategically—they offer tax benefits, leverage, and long-term capital growth.
When investment loans make sense:
- Income over $100,000 (benefit from negative gearing)
- Long-term investment horizon (10+ years)
- Strong understanding of property markets
- Emergency fund covering 6-12 months expenses
- Clear investment strategy (growth vs yield)
Key success factors:
- Buy quality property in strong growth areas
- Keep LVR at 80% or below (avoid LMI)
- Use interest-only strategically (first 5-10 years)
- Maintain cash flow buffer (vacancy/rate rises)
- Refinance every 2-3 years (reset IO, access equity, better rates)
- Work with accountant (maximize tax benefits)
Typical investment loan:
- Property: $680,000
- Loan: $544,000 (80% LVR)
- Rate: 6.3% p.a., interest-only 5 years
- Repayment: $2,856/month
- Rental: $2,600/month
- Shortfall: -$256/month
- Tax refund: $850/month (negative gearing + depreciation)
- Net cash flow: +$594/month
Building wealth:
- Hold 15-20 years
- Property grows to $1,400,000 @ 5% p.a.
- Loan paid down to $350,000 (switched to P&I after 10 years)
- Equity: $1,050,000 from $136,000 initial investment
Investment property loans require careful planning and ongoing management—speak to a NIK Finance broker to compare investment loan rates across 100+ lenders and structure your loan optimally for tax efficiency and cash flow.
Done right, investment property loans can build substantial wealth—but they require financial discipline, market knowledge, and professional advice.