Free Perth Mortgage Calculator

Know Your Numbers Before You Move

Calculate your Perth home loan repayments in seconds — weekly, fortnightly, or monthly. Whether you're buying, upgrading, or planning your next move after a sale.

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P&IPrincipal & Interest
I/OInterest Only
3Repayment Frequencies
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Mortgage Calculator — Perth & All WA

Your Loan. Your Repayments.

Estimate your monthly repayments in seconds. Enter your loan amount, interest rate, and loan term to get a clear breakdown of what to expect.



Your repayments would be:

per week per fortnight per month

Total paid:

Total interest paid:

Selling Before You Buy?

The More You Keep From Your Sale,The More You
Have For Your Next Home

Most Perth sellers pay a typical agency 2.4% in commission — on an $800,000 sale, that's $19,200 gone before you've started thinking about your next purchase.

We charge 1% + GST. On that same $800,000 sale, our fee is $8,800. The $10,400 difference could reduce your loan amount, boost your deposit, or simply stay yours.

 
$10,400 is roughly 6–7 months of additional repayments on a $600,000 loan at 5.5% — before you've moved in.
Typical Perth Agency 2.4% commission inc. GST
 
$600k sale → $14,400 in fees $800k sale → $19,200 in fees $1m sale → $24,000 in fees
One Percent Realty WA 1% commission + GST
 
$600k sale → $6,600 in fees $800k sale → $8,800 in fees $1m sale → $11,000 in fees
 
"
Other agents quoted me around $20,000. My total cost with Lee was $8,000 including photos — and he sold in less than two days for more than I expected.
Carla Halliday — Perth Seller Read the full Google review →
Perth's Best Value Full-Service Agent

Full Service. One Percent.

Choosing an affordable real estate agent in Perth should never mean accepting less. Everything a traditional agency provides — at 1% + GST.

Professional Photography

High-resolution photography and floor plans as standard. First impressions on realestate.com.au drive enquiry — we take them seriously.

Full Portal Marketing

Listed on realestate.com.au, domain.com.au, and our channels — reaching local, interstate, and international buyers searching WA property.

Experienced Local Agents

Perth-based agents who know your suburb. Not a franchise, not a call centre — 17+ years selling across the Perth metro area.

Home Opens & Viewings

Structured home opens and private appointments at times that suit you. Detailed buyer feedback after every session — no guesswork.

Negotiation & Contracts

Direct negotiation on your behalf — strategically, with your best result as the only priority. Full contract management to acceptance.

Settlement Support

Full support through conveyancing and available all the way to settlement day. No handoff, no disappearing once the contract is signed.

Perth Property Market 2026

Using a Mortgage Calculator to Plan Your Next Perth Property

A Perth mortgage repayment calculator is one of the most useful tools when planning a property purchase in Western Australia. It helps you understand what your monthly, fortnightly, or weekly repayments will look like — and how a change in rate or loan term shifts your long-term position. Use the calculator above to model scenarios before speaking with your mortgage broker or lender.

Selling in Perth before your next purchase? The single biggest controllable number in your property finances is not your interest rate — it is your selling costs. The difference between a 1% commission agent and a typical Perth agency charging 2.4% on a $750,000 sale is $10,500. Use our commission savings calculator to see your exact figure.

How long does it take to sell a house in Perth? Our average days on market is 9 — well below the metro average. That means less time carrying two properties, less uncertainty, and a faster path to your next purchase.

One Percent Realty WA offers a free property appraisal across all Perth suburbs — including Subiaco, Cottesloe, South Perth, East Perth, Victoria Park, Scarborough, and Leederville. If you are thinking about selling before buying, we will give you an honest market valuation and show you exactly what our 1% + GST commission means for your next deposit.

Commission Savings Calculator →
 
Sell Smart. Keep More. Buy Better.

Ready to Sell Your Perth Property?

Book a free, no-obligation property appraisal with our local Perth team. We'll tell you what your home is worth, what our 1% fee means in dollars, and exactly how we plan to sell it.

Sell For Only 1% (+GST) Commission

YOUR TRUSED REAL ESTATE EXPERT