LODGEY
RATE RISE CHECK

Westpac Raised Rates: The Rental Property Buffer Test to Run This Week

24 APRIL 2026.8 MIN READ.BY LODGEY
A 0.25% rate rise is not small if it repeats every month. If your rental loan is variable, the useful question is not whether the headline sounds dramatic. It is whether your rent, offset, and spare cash still cover the new repayment without forcing messy redraw decisions.
Variable Rate Rise
+0.25%
Westpac investment property and owner occupier variable loans
Effective Date
31 Mar
Westpac's March 2026 rate update applied to new and existing customers
Before Tax Time
3 checks
Repayment jump, buffer runway, and loan-purpose evidence
01

What Changed for Westpac Borrowers

Westpac's own rate update says it increased variable home loan rates by 0.25% p.a. for new and existing owner occupier and investment property customers, effective 31 March 2026. Separate reporting also pointed to a 0.15% lift across new fixed home loan terms.

For a landlord, this is not just a bank-news item. It changes the monthly shortfall, the amount sitting in offset, and the evidence you need for interest claims after refinancing or loan changes.

SignalWhat changedInvestor read
Westpac variable ratesWestpac said variable home loan rates rose 0.25% p.a. for owner occupier and investment property loans from 31 March 2026.Your repayment, annual interest, and buffer target need a fresh check.
Fixed-rate reportingMedia reporting also pointed to a 0.15% lift across new Westpac fixed home loans.Fixed-expiry and refinance decisions are getting more expensive to leave late.
Property owner pain pointLoan documents, offset/redraw statements, and refinancing records are common evidence gaps.The rate rise is not just a cashflow event. It is also a tax-record event.

This maps directly to the common property-owner pain points: offset and redraw confusion, refinancing records, and the mistake of treating all loan payments as deductible when only the interest portion matters.

02

Calculate the Monthly Jump

A 0.25% rate rise can look small in a headline. On a large investment loan, it is a recurring claim on cash. The tax deduction may soften the after-tax impact, but it does not stop the monthly payment leaving your account.

INTERACTIVERATE SHOCK CALCULATOR
$850,000
6.25%
+0.25%
37%
Current monthly
$4,427
New monthly
$4,604
Monthly jump
$177
Annual cash cost
$2,125
After-tax impact
$1,339
If deductible at your selected marginal rate. Medicare levy and timing ignored.
Do not confuse tax relief with liquidity. Interest on an investment loan may be deductible where the borrowing purpose is income-producing, but the deduction usually arrives later through tax. The repayment pressure arrives every month.
03

Check Whether the Buffer Still Works

A buffer is not a vague feeling that there is "some money around." It is a visible amount that can cover a vacancy, a repayment rise, and a lumpy bill without pushing you into private redraw or rushed refinancing.

INTERACTIVECASH BUFFER PLANNER
$3,200
$4,300
$850
$9,000
$22,000
Buffer is doing its job

You have at least six months of estimated shortfall covered.

Monthly shortfall
$2,700
Runway
8.1 months
Six-month target
$16,200
Buffer gap
$0
01
Keep emergency money separate from spending money
A labelled offset account beats a vague mental promise. Give the buffer a job: rates, repairs, vacancy, and tax timing.
02
Stress-test the property before refinance season
Model 0.25%, 0.50%, and 1.00% rises. If one extra percent breaks the property, you need a plan before the lender letter arrives.
03
Keep the deduction story clean
If money leaves redraw for private use, record what happened and check the loan split. The tax result depends on purpose, evidence, and structure.
04

Do the Loan-Purpose Check Before You Move Money

Rate rises make people hunt for spare cash. That is exactly when redraw mistakes happen. An offset account can reduce interest without changing the loan purpose. Redraw from an investment loan for private spending can create a mixed-purpose loan problem.

Plain-English rule: before you move money, ask what the borrowed funds will be used for. The purpose is what matters for deductibility, not just the property used as security.
INTERACTIVERATE RISE TRIAGESTEP 1
Do you have an investment loan that moved after the March 2026 rate changes?
05

The 15-Minute Review

Keep this practical. You are not trying to forecast the whole rate cycle. You are checking whether this property still has enough room to breathe after a known repayment change.

This weekWhy it mattersWhat good looks like
Check the loan rateWestpac moved variable investment property loans by 0.25% p.a. from 31 March 2026.You know the new repayment and the annual interest change.
Name the bufferEmergency money works only if it is not silently spent.Three to six months of property shortfall is visible in offset or cash.
Review redrawPrivate redraw can damage deductibility in ways an offset does not.Investment and private borrowing purposes are separated before spending.
Save the loan evidenceBank data and claimed interest can be checked later.Loan contracts, offset statements, redraw history, and refinance notes are kept together.
Westpac's March 2026 rate update says variable home loan rates rose by 0.25% p.a. for both owner occupier and investment property loans, effective 31 March 2026.
Not always. Investment loan interest may be deductible where the borrowing purpose is income-producing, but deductibility depends on the facts, loan purpose, and records. A deduction also does not solve monthly cashflow pressure.
Investors under repayment pressure sometimes pull money from wherever it is available. If private spending is redrawn from an investment loan, part of the loan can become non-deductible.
Keep the loan contract, rate-change notice, offset statements, redraw history, refinance paperwork, and notes showing how each loan split relates to the rental property.
Sources checked
Related record-keeping check
Cash use is rising again. Make every rental expense provable.->
RATE RISE MEETS TAX TIME
Find the cash leaks before they compound

Run your property through Lodgey's deduction and cashflow checks, then turn interest, loan notes, and records into a cleaner tax position.

Check my property ->
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FREE · PDF · 8 PAGES

The 2026 Property Tax
Deduction Checklist

87 deductions, 7 ATO red flags, and 6 critical 2026 deadlines— all in one field-tested PDF. Built for Australian property investors. Updated for the FRCGW $0 threshold, Victoria's statewide VRLT, and TR 2025/D1.

87
Deductions
7
ATO red flags
6
2026 deadlines