Disclaimer: This article provides general information only and does not constitute financial, legal, or tax advice. Lending criteria, interest rates, and ATO rulings change. Consult a licensed financial adviser and a registered tax agent before making property or borrowing decisions.
Your house doubled in value. So did the next one. Now what? As a self-employed Australian, you’re sitting on a surge of equity that didn’t exist when you first took out the loan — and the traditional income-verification path isn’t built for you. This guide unpacks exactly how to measure your position, which Low Doc borrowing structures let you convert doubled property values into real funding, and where the hidden risks lie when rates are at 4.1% (RBA cash rate, March 2026).
How Much Equity Did You Really Build?
Before you even think about the next move, quantify your usable equity. CoreLogic’s February 2026 Home Value Index shows that in 63 of 88 SA4 statistical regions, median dwelling values have at least doubled from their 2020 trough. But the headline number isn’t your spending limit.
Lenders calculate usable equity as:
- Current market value (per desktop valuation or full bank val)
- × Low Doc LVR cap (80% for owner-occupied, 75% for investment)
- minus your remaining loan balance
- minus exit fees or clawbacks if you’re refinancing mid-term
Example: If your home is worth $1.4 million and you owe $500,000, maximum borrowable at 80% LVR is $1,120,000. That frees up $620,000 in equity — but you won’t get all of it as cash. Lenders will still run a serviceability calculation on the increased loan amount.
2026 Low Doc Serviceability Buffers
APRA’s serviceability buffer remains at 3% over the product rate for Low Doc loans in 2026. With variable rates averaging 6.80% for Low Doc, you’ll be assessed at roughly 9.80% on the total proposed debt. That means a $1.12 million loan must be serviceable at an annual interest load of $109,760 — plus living costs. Use your business’s consistent gross revenue (declared on BAS) to meet that threshold.
Low Doc Re‑finance vs Equity Loan vs Cash‑Out: Which Suits ‘Now What’?
Your house doubled in value. So did the next one. Now what? The answer hinges on which product you choose to access the windfall.
| Option | LVR Limit (2026) | Income Evidence | Best For |
|---|---|---|---|
| Low Doc refinance with cash-out | 80% OO, 75% INV | 12m BAS + 6m business bank statements | Homeowners wanting a single facility for the next deposit |
| Separate equity loan (line of credit) | up to 75% combined LVR | Accountant’s letter confirming business income | Borrowers keeping current loan’s fixed rate intact |
| Cross-collateralised Low Doc facility | 70%–75% blended | Full business financials or high ABN trading time | Large portfolio > $2M; simplifies security but limits flexibility |
| Private / Near-prime Low Doc | up to 65% | 6m trading statements, minimal BAS | Equity rich but low current income (e.g., asset-heavy tradie) |
Key takeaway: The doubled values let you negotiate from strength. With equity above 40%, you can often avoid LMI and access the sharpest Low Doc pricing. If you’re below 60% LVR post-equity extraction, some non-bank lenders offer Alt Doc rates that price within 0.60% of full-doc products.
Your house doubled in value. So did the next one. Now what? The Three‑Step Expansion Sequence
Most self-employed investors aren’t chasing prestige — they’re building income-producing property portfolios. Here is the repeatable sequence that uses doubled equity without triggering a tax event on the family home.
Step 1: Extract Equity from the Primary Residence (Tax‑Free)
Because the family home is typically CGT-exempt, an equity release here isn’t a disposal. You increase the loan, but you’re not selling. Use the released cash as a 20% deposit + stamp duty for the next investment. Structure the new loan component as a separate split to preserve clear deductibility records.
Step 2: Purchase the Next Property with a Standalone Low Doc Investment Loan
Even though your equity came from the main residence, the new purchase is 100% for investment. So new borrowing is fully deductible. In 2026, most Low Doc lenders accept 75% LVR for established investment properties, with a rate loading of 0.50%–0.80% above the owner-occupied Low Doc rate. Maintain all BAS and trading statements for the last 12 months — lenders run a ‘consistent revenue’ test, not just total income, so seasonal dips matter.
Step 3: Repeat After Next Price Cycle (or When Value Doubles Again)
Once that second property doubles, you’ll have equity in both. At that point switching from single-property facilities to a portfolio-wide facility may reduce fees. But be aware: aggregate Low Doc borrowing typically caps at $2.5M with mainstream non-banks (2026 policy), and above that you need private backed transactions at 8–10% rates.
Real‑Numbers Scenario: $1.2M Home → $800K Next Purchase
Let’s put dollars behind the “Now what?” question.
- Current home value: $1,200,000
- Outstanding loan: $400,000
- Usable equity at 80% LVR: $560,000
- Target investment property price: $800,000
- Deposit needed (20%): $160,000
- Stamp duty (VIC, investment): ~$42,000
- Total cash required: $202,000
You draw $202,000 from the primary residence equity, leaving a $602,000 loan on the home, and take a separate Low Doc investment loan of $640,000 (80% LVR on the new property). Combined debt $1,242,000. At a blended 6.85% interest rate, annual interest cost ≈ $85,000. If the property rents for $620/week ($32,240/year), the pre-tax shortfall is $52,760 — negatively geared. But if the asset doubles again in 7–8 years, the nominal gain far outweighs holding costs.
Tax Traps When Using Doubled Equity

Having your house double in value is brilliant — until a poorly structured loan build contaminates tax deductions. The ATO’s 2025/2026 focus on apportionment means you must isolate the equity release as a separate loan split labelled “Investment purpose – deposit and costs for [address]”. If you mix the increased debt with private expenses (e.g., lump sum into an offset used for both the business and personal spending), the ATO can partially deny interest deductions.
Q: Is the interest on an equity release from my home tax-deductible?
Only if the money is used for an income-producing purpose. Releasing $200,000 for a new investment property makes that portion of interest deductible. Releasing the same $200,000 to buy a luxury car does not. Always set up a new split and trace the funds directly to the settlement account of the next property.
Risk Management: When Doubling Doesn’t Mean Keep Buying
Your house doubled in value. So did the next one. Now what? Sometimes the right answer is: stop. Here’s a quick stress test.
- What if the cash rate rises to 5.5%? At 5.5%, your blended variable rate could hit 8.5%. On $1.24M debt, interest alone becomes $105,400/year. Rental income gaps balloon. Can your business cover a $70,000 annual top-up?
- What if tenant vacancy hits 6 weeks? A single vacancy across two properties costs $4,000–$5,000 in lost rent plus reletting fees. With Low Doc loans you seldom have offset accounts, so cash buffers are critical.
- What if one property sells below valuation? Cross-collateralised setups mean a forced sale on one property can trigger a revaluation on the other. Stress-test your portfolio with a 15% value correction.
Q: Can I use a Low Doc loan to buy the next property with only a 10% deposit?
Generally no. Most Low Doc lenders require a minimum 20% deposit (80% LVR) to avoid LMI. A few non-bank lenders accept 85% LVR for strong applications (2+ years ABN, GST registered, clean credit), but the rate is higher and LMI may add $12,000–$15,000 to upfront costs. Expect to show a 20% genuine savings history unless you’re in a specialist professional package.
Longer View: Should You Just Sell?
When both properties have doubled, selling crystallises the gain for good. If the main residence is sold, you pay zero CGT. If the second is sold and it’s an investment, CGT applies — though the 50% CGT discount after 12 months reduces the bite. Factor in selling costs (~2.5% agent fees, marketing, legal) and the “exit tax” before concluding that selling beats holding.
A 2026 holding vs selling calculator — using CoreLogic’s 20-year average capital growth of 6.8% p.a. for combined capitals — shows that a $1.2M home held for another 5 years could add $460,000 in equity, far outweighing the after-CGT cash if sold now and invested in lower-yielding assets. For self-employed borrowers who can service the debt, the long-term arithmetic often favours retention and strategic equity use.
Q: How many ABN years do I need to refinance with Low Doc after a value doubling?
Minimum 12 months ABN (and GST registration) is the baseline for most lenders. The sweet spot for competitive Low Doc rates is 24 months. If your ABN is under 2 years but the equity is above 35%, some specialist lenders will consider an Alt Doc application with an accountant’s letter and six months of business trading statements.
FAQ: Fast Answers for Self-Employed Equity Moves
Q: Can I release equity from two properties at once with a single Low Doc application?
Yes, via a multi-security or portfolio loan. The total LVR is calculated across all properties. For example, if both properties are worth $2.4M combined and you owe $800,000, you could release up to a 75% overall LVR ($1.8M – $800,000 = $1M available). Expect a slightly higher rate (0.25%–0.40% additional loading) and a more rigorous valuation process.
Q: What happens to my Low Doc loan if the property value drops after equity release?
You won’t be asked to repay the loan as long as you keep making payments. However, if you need to refinance later or sell, a lower valuation may reduce your available equity and trigger LMI top-up costs. Never plan on perpetual price rises.
Q: Are there Low Doc lenders that accept rental income from the existing investment property without a lease?
Most require a current tenancy agreement. Some may accept a market rent appraisal from a licensed agent and six months of rent statements. At least a 3-month tenancy history is advisable.
Sources

- CoreLogic Home Value Index – February 2026 (https://www.corelogic.com.au/news-research) — Authoritative source for Australian dwelling value changes and regional doubling data. Used for capital growth benchmarks and price-tier medians.
- RBA Cash Rate Target – March 2026 (https://www.rba.gov.au/statistics/cash-rate/) — Official central bank cash rate; foundational for serviceability buffer assumptions.
- APRA Prudential Standard APS 210 – Liquidity & Serviceability (https://www.apra.gov.au) — Regulatory standard underpinning the 3% serviceability buffer applied to all Low Doc loans in 2026.
- Australian Taxation Office – Rental Properties 2025/2026 (https://www.ato.gov.au/individuals/property/) — Primary reference for negative gearing, interest deductibility apportionment, and CGT discount eligibility on investment properties.
- Major Non-Bank Low Doc Home Loan Product Sheets (Jan–Mar 2026) — Aggregated from publicly available rate sheets of Resimac, Pepper Money, and La Trobe Financial. Confirm product specifics directly with each lender as criteria change frequently.