Off-the-Plan Apartments After 2027: Why They Just Got More Attractive for Investors

Off-the-plan apartments long viewed with skepticism by Australian investors burned by defect rates and oversupply have a new appeal under the 2026-27 Budget. Because they qualify as new builds, off-the-plan apartments retain full negative gearing forever, even when acquired after 1 July 2027. Combined with the option to apply either the new CGT regime or the transitional 50% discount apportionment, off-the-plan apartments are structurally tax-advantaged in a way that established stock no longer is.

Why off-the-plan qualifies as "new build"

The reform's definition of new build is engineered around supply. Off-the-plan apartments add a brand-new dwelling to housing stock exactly the policy outcome the Government wants to incentivise. Three criteria must be satisfied:

1. The dwelling has not been previously sold (in any prior transaction)
2. If first owned by the builder/developer, it has not been occupied for more than 12 months before first sale
3. The purchase contract is between the first buyer and the builder/developer (or first-owner)

Off-the-plan transactions tick all three boxes by definition. Whether you settle on a Sydney CBD high-rise, a Melbourne inner-city walk-up or a Gold Coast tower, the new-build status flows through.

The tax benefit in dollar terms

Consider a $650,000 off-the-plan two-bedroom apartment generating $26,000 in rent and $39,000 in deductible expenses (interest, depreciation, body corporate, rates). Annual loss: $13,000. At a 37% marginal rate, the wage offset is worth $4,810 per year.

For an established equivalent acquired after 1 July 2027, that $4,810 becomes a carry- forward loss. Over a 10-year hold, the off-the-plan investor receives $48,100 of immediate tax savings while the established-property investor accumulates a carry-forward of $130,000 that may or may not eventually be used.

Sunset clauses and developer risk

Off-the-plan contracts include sunset clauses dates by which the developer must register the strata plan and call for settlement. If construction overruns, developers historically used sunset clauses to terminate contracts and resell at higher prices. NSW, Victoria and Queensland have all tightened these provisions since 2015, but contractual risk remains.

Negotiate sunset extension limits, deposit protection (bank guarantee or trust account deposits only), and clear remedies if the developer breaches. Engage a solicitor experienced in off-the-plan contracts before signing and consider running the contract through Realestate Lens for AI-assisted clause analysis.

Settlement risk and finance

The most painful off-the-plan failure mode is valuation gap at settlement. You sign in 2026 at $650,000 expecting to settle in 2028. By 2028, the bank's valuer may assess the property at $580,000, leaving a $70,000 cash shortfall. The bank will lend against the lower figure; the developer demands the contracted price.

Mitigants: large deposits (10-20%), lender pre-approvals re-validated quarterly, contingency cash buffers and selective developer choice. Established developers with consistent valuation track records carry less of this risk than first-time builders.

The subsequent-purchaser trap in detail

The new-build definition explicitly excludes any property that has been "previously sold" to a non-builder. This means once the first investor buys the off-the-plan apartment from the developer, the new-build status is consumed. A future buyer of that same apartment three years later steps into the established-property tax regime full force.

For investors looking at "near-new" stock on the secondary market, this is critical. A 2027 sale of a 2028 apartment is established stock for tax purposes. The 12-month occupation carve-out applies only to first sales by the original builder, not to subsequent transactions.

Due diligence checklist

• Confirm the contract is direct with the original developer or builder
• Verify the dwelling has never been occupied for more than 12 months pre-sale
• Check the sunset clause both length and termination protections
• Obtain a depreciation schedule estimate from a quantity surveyor (typically $5-8k/year for new apartments)
• Investigate the developer's prior projects: defect rates, settlement valuations, body corporate health
• Stress-test cash flow at +2% interest rates and -10% rent
• Confirm pre-approval terms remain valid through the expected settlement date