What triggered the review of investor loan pre-approvals at Westpac (ASX:WBC)?

Westpac initiated the review after the Australian federal government announced a budget ban on negative gearing for established investment properties.

How much will the negative gearing ban cut property investor borrowing capacity?

Mortgage brokers estimate that an investor's borrowing capacity could be slashed by up to 20%. This reduction occurs because banks can no longer factor in future tax savings from negative gearing when calculating a borrower's income and servicing capacity.

Which Australian banks are changing their investor lending policies immediately?

Macquarie has already instructed its broker network to apply the negative gearing ban to credit assessments immediately, despite the legislation not yet passing parliament.

How are Commonwealth Bank (ASX:CBA), NAB (ASX:NAB), and ANZ (ASX:ANZ) responding to the budget changes?

The Commonwealth Bank, National Australia Bank, and ANZ are currently reviewing their investor home loan policies in response to the tax changes. Under responsible lending rules, these major lenders are required to assess the looming regulatory impacts on future borrowing serviceability.

What changes did the federal budget make to capital gains tax for property investors?

The government axed the 50 per cent capital gains tax (CGT) discount across all assets, including property. It replaced the discount with an inflation-adjusted calculation and introduced a minimum 30% capital gains tax, which is widely considered less generous for retail investors.

Why is this negative gearing ban considered a major political pivot?

The overhaul represents a significant breach of an election commitment by Prime Minister Anthony Albanese, who repeatedly ruled out changes to property investor concessions during the 2025 federal election campaign. The opposition Coalition has already vowed to repeal these tax changes if elected.

What macro headwinds are banking stocks facing alongside these tax regulatory changes?

Australian banks are navigating a rapidly shifting environment marked by three consecutive Reserve Bank of Australia (RBA) interest rate hikes, which pushed the official cash rate to 4.35%.

How does the negative gearing ban alter the medium-term investment thesis for ASX bank stocks?

The combination of RBA rate hikes, a 20 per cent drop in investor borrowing capacity, and tax uncertainty increases the risk of a banking sector de-rating due to slower loan book growth.

Image for illustrative purposes only. Not a real photo.

Westpac triggers investor loan reviews after budget ban

Written by Heidi Cuthbert Published May. 20 2026Last Updated May. 20 2026

Westpac (ASX:WBC) has warned mortgage brokers that existing investor pre-approvals face mandatory reassessments following the federal government's budget ban on negative gearing for established properties.

Australia’s second-largest lender cautioned its network to manage customer expectations early, noting that stripping away these tax concessions will create immediate "serviceability shortfalls" for many borrowers.

As the banking sector reacts to the unexpected policy shift, mortgage brokers estimate that an investor's borrowing capacity could be slashed by up to 20%, given they can no longer offset property losses against their personal income.

While Westpac and its subsidiary St George have not formally altered credit policies ahead of the July legislative deadline, rivals like Macquarie have already instructed brokers to apply the ban immediately.

Meanwhile, the Commonwealth Bank (ASX:CBA), NAB (ASX:NAB), and ANZ (ASX:ANZ) are actively reviewing their positions.

The sudden overhaul represents a major policy reversal for Prime Minister Anthony Albanese, who repeatedly defended property concessions during the 2025 election campaign.

Adding to investor anxiety, the budget also dismantled the 50% capital gains tax discount, replacing it with a less generous inflation-adjusted calculation and a 30% minimum tax.

The regulatory changes arrive alongside three consecutive Reserve Bank of Australia interest rate hikes, which pushed the official cash rate to 4.35%, and geopolitical pressures from the ongoing Iran war.