In short: A mortgage broker works out how much you can borrow, compares home loans across a panel of lenders, recommends the loan that suits you, prepares and lodges the application, and manages it through valuation, approval and settlement. In Australia brokers owe you a legal Best Interests Duty, and the lender pays the broker's commission, so the service is at no cost to you in most cases.
People often picture a broker as someone who fills in a form and hands it to a bank. The paperwork is the smallest part. Most of the value sits in the assessment before the application and the problem-solving after it. This post walks through what actually happens between your first call and the day you get the keys.
Step by step: what a broker does
| Stage | What the broker does | Why it matters |
|---|---|---|
| Discovery | Reviews your income, debts, expenses, savings, credit file and goals | Identifies problems before a lender sees them |
| Borrowing capacity | Calculates what each lender would lend you, using their individual policies and the rate-plus-3% buffer | Lenders can differ by tens of thousands of dollars on the same applicant |
| Strategy | Recommends structure: fixed, variable, split, offset, interest-only, guarantor, scheme use | Structure affects cost and flexibility for decades |
| Lender selection | Matches your profile to the lender most likely to approve on the best terms | Avoids declined applications and unnecessary credit enquiries |
| Application | Prepares the file, checks documents, writes lender notes explaining anything unusual | A well-presented file is approved faster and with fewer questions |
| Lodgement to approval | Orders valuation, answers assessor queries, negotiates pricing | Keeps the application moving through the lender's queue |
| Settlement | Coordinates with your conveyancer and the lender to meet the settlement date | Missed settlement dates cost penalty interest |
| After settlement | Reviews your rate periodically and helps you refinance when it makes sense | Loyalty is rarely rewarded by lenders |
Our how it works page shows this from the client's side.
The discovery stage is where most of the value is
When Gorakh Timilsina worked as a senior credit officer, he assessed hundreds of applications and saw the same avoidable failures: undisclosed debts, expenses that did not match bank statements, deposits with no paper trail, and applicants placed with lenders whose policies never suited them. A good broker does that credit assessment on your file before any lender does, and fixes what can be fixed.
Practical examples:
- You have a credit card with a $15,000 limit you never use. Reducing it before applying can increase borrowing power.
- You are on a 482 visa. Only some lenders will consider you, and applying to the wrong one wastes weeks.
- You are self-employed with one year of returns. Some lenders accept that; others require two.
- Your deposit includes a gift from overseas. The broker tells you exactly which documents the lender will require.
Comparing lenders is more than comparing rates
Each lender has its own credit policy: how they treat casual income, overtime, bonuses, HECS, family tax benefit, rental income, new jobs, and small deposits. Two lenders can offer the same rate and give completely different answers to the same applicant. A broker with a wide panel knows these differences. Our lenders page lists who we work with, and our mortgage broker vs bank guide explains why walking into one branch limits you to one policy.
A worked example
For illustration, a couple in Craigieburn earning $150,000 combined with $50,000 saved wants a $650,000 home. Lender A counts only 80% of the wife's overtime and assesses their capacity at $600,000. Lender B counts 100% of overtime with two years of history and arrives at $660,000. Lender C offers the best rate but requires 10% genuine savings, which they do not have. A broker sees all three and lodges once, with Lender B, under the First Home Guarantee to avoid LMI. At 6.00% p.a. over 30 years, the $617,500 loan costs about $3,702 a month. The couple never needed to know Lenders A and C existed.
How brokers are paid
The lender pays the broker an upfront commission when the loan settles and a small ongoing trail commission while the loan remains. That is why the service is at no cost to you for our home-loan service in most cases. The commission does not change your interest rate; the same lender charges the same rate whether you come direct or through a broker. Full detail is in our guide on how mortgage brokers get paid, and your Credit Guide, which every broker must give you, sets out the arrangements.
The legal duties a broker owes you
Since 2021, mortgage brokers in Australia have owed a Best Interests Duty under the National Consumer Credit Protection Act. The broker must act in your best interests and must prioritise your interests over their own where they conflict. Banks selling their own products owe no equivalent duty. Read our page on the Best Interests Duty and the NCCP Act.
If something goes wrong, you can complain to the broker first and then to the Australian Financial Complaints Authority, the free external dispute resolution scheme. Our complaints page explains the process.
What a broker does not do
- Give legal advice on the contract. That is your conveyancer's job.
- Guarantee approval. The lender makes the credit decision.
- Set interest rates. Brokers negotiate, but lenders price.
- Value the property. The lender's independent valuer does that.
- Provide financial planning or tax advice, unless separately qualified and engaged.
Knowing the boundaries helps you assemble the right team: broker, conveyancer, building inspector and, where relevant, accountant.
When you probably do not need a broker
If you have a 20% deposit, a permanent salaried job, no other debts, a spotless credit file and the patience to compare lenders yourself, going direct can work. Even then, a broker will often find a sharper deal and will handle the paperwork. For anyone self-employed, on a visa, with a small deposit, buying land or a house-and-land package, or using a government scheme, a broker's knowledge of lender policy is the difference between approved and declined.
Frequently asked questions
Does it cost money to use a mortgage broker?
For a standard home loan, no. The lender pays the broker's commission when the loan settles, so our home-loan service is at no cost to you in most cases. Some brokers charge fees for complex commercial or specialist lending, and any fee must be disclosed in writing before you commit. Ask for the Credit Guide and read it.
Is a mortgage broker better than going to a bank?
A bank can only offer its own products and owes you no Best Interests Duty. A broker compares many lenders, knows each one's credit policy, and is legally required to act in your best interests. For applicants with anything unusual in their file, the difference in outcome can be significant. For very simple applications, both routes can work.
How long does a mortgage broker take to get approval?
Pre-approval is often available within a few days of a complete application. Formal approval for a purchase typically takes one to two weeks depending on the lender, valuation timing and how clean the file is. A broker speeds this up by choosing a lender with current fast turnaround times and by presenting a complete file the first time.
What should I bring to the first meeting with a broker?
Photo ID, two recent payslips, your latest tax return or PAYG summary, three months of bank statements, statements for any debts, and evidence of your deposit. Self-employed applicants should bring two years of returns and financials if they have them. Bring your questions too. The first meeting is about understanding your goals and options, not selling you a loan.
Talk to GNT Finance
GNT Finance is a Melbourne mortgage broker based in Mickleham, working with buyers across Victoria and Australia-wide by phone or video, in English, Nepali or Hindi. Book a free consultation with Gorakh Timilsina or call 0426 403 703 and find out what a broker can do on your file.
Written by Gorakh Timilsina
Founder, CEO & Senior Mortgage Consultant at GNT Finance. Gorakh started as a broker assistant, spent years as a senior credit officer assessing loan applications, and now helps Melbourne families get the right loan approved. English, Nepali and Hindi spoken.