Article
Five Safety Rules To Follow Before Gearing Into Property
Borrowing to invest can work, but only if you set hard safety rules first. Here are five non‑negotiable guardrails every Australian gearing into property should lock in before signing a contract.
Key Takeaway
Australian investors should follow five non-negotiable rules before gearing into property: cap LVRs around 70–80%, hold 3–6 months of total costs in cash buffers, stress-test repayments against at least a 3% rate rise, avoid cross-collateralisation with clean loan splits, and pre-plan a de-gearing exit 5–10 years before retirement. With negative gearing restrictions from 1 July 2027, decisions must focus on pre-tax cashflow and risk. The key action is to run a full stress-test and buffer check before signing any contract.
Borrowing to invest in property is only safe if you set hard limits first. Five non‑negotiable safety rules are: keep LVR conservative, hold a real cash buffer, stress‑test rates and vacancies, use clean loan structures, and have a written exit plan. If you can’t tick all five, you’re not ready to gear.
This article is the practical companion to broader risk planning guides like Plain-English Gearing Basics Every Australian Property Investor Must Know and Building Safe Borrowing Plans with Buffers, Risk and a Broker.
Five non-negotiable safety rules should frame every geared property decision.
Rule 1: Cap your leverage before the bank does
1.1 Set your own LVR ceiling
Lenders may happily approve you up to 90–95% LVR with lenders mortgage insurance (LMI). That doesn’t mean it’s safe.
For geared property, a sensible ceiling for most investors is:
- Owner-occupied home: Aim to get under 80% LVR over time.
- Investment properties: Target 70–80% LVR total across the portfolio.
Below 80% LVR you generally avoid LMI, improve rate options and have more room if prices fall.
1.2 Understand how much price fall you can survive
A 20–30% fall in property prices is rare but not impossible. Your safety rule should be: “If prices drop 20%, I still want positive equity and no forced sale.”
Illustrative comparison
| Scenario | LVR at purchase | Price fall | New LVR | Equity left on $800k property |
|---|---|---|---|---|
| A: High leverage | 90% | 20% | 113% | Negative equity (~-$72k) |
| B: Moderate leverage | 80% | 20% | 100% | ~$0 |
| C: Conservative leverage | 70% | 20% | 88% | ~$96k |
Your non‑negotiable rule: never gear so hard that a 20% price drop wipes you out on paper.
Rule 2: Build a real cash and offset buffer
2.1 The minimum buffer for geared investors
From our other guides, a practical minimum is:
- At least 3 months of total home + investment repayments in offset or savings (Fact 17).
- For first‑time geared investors, 3–6 months of total property costs (repayments, rates, insurance, basic maintenance) is safer (Fact 16).
A simple rule of thumb: if losing your tenant for six months would break you, you’re over‑geared.
2.2 Worked example: how much buffer is enough?
Assume:
- Home loan repayments: $3,000 per month.
- Investment loan repayments: $2,000 per month.
- Investment holding costs (rates, insurance, basics): $800 per month.
Total geared property outgoings: $5,800 per month.
- 3‑month buffer: $5,800 × 3 = $17,400.
- 6‑month buffer: $5,800 × 6 = $34,800.
Your non‑negotiable rule: keep at least 3 months in cash/offset before you buy, and plan to reach 6 months within 1–2 years. Use offset accounts rather than redraw to preserve flexibility and cleaner tax tracing.
For a deeper dive into buffer sizing while geared, see How Big Should Your Cash and Offset Buffer Be When You’re Geared? (sibling article in this cluster).
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