Mortgage Broker vs Bank: Which Should You Choose?

It is the biggest financial decision most Australians will make, and one of the first questions that comes up is whether to apply for a home loan directly with a bank or use a mortgage broker. Both options can work, but they offer very different experiences and outcomes.

The Case for Using a Bank Directly

Going straight to a bank works best when:

• You already bank with them and have a strong relationship
• They are offering a genuinely competitive rate that you have verified
• Your situation is straightforward: full-time PAYG employee, 20 per cent deposit, clean credit
• You prefer dealing with a single institution and value brand familiarity

The disadvantage is obvious: a bank will only show you its own products. Even if they have 50 different home loan options, they all come from one lender with one set of risk criteria.

The Case for Using a Mortgage Broker

A mortgage broker compares loans from dozens of lenders. This matters more than most people realise because:

• Rate differences add up fast: A 0.3 per cent rate difference on a $600,000 loan costs roughly $1,080 per year, or $32,400 over a 30-year term
• Lender criteria vary hugely: One bank might decline your application while another approves it at a better rate. Brokers know which lender suits your profile
• Features matter as much as rates: Offset accounts, redraw facilities, split loan options, and early repayment flexibility all affect the true cost of your loan
• Pre-approval strategy: Brokers know how to structure applications to maximise approval chances. Multiple direct applications can hurt your credit score

Cost Comparison

This is where the numbers might surprise you:

• Bank: No direct cost to you, but you may pay a higher rate because you did not negotiate or compare
• Broker: No direct cost to you. Brokers are paid a commission by the lender (typically 0.5 to 0.7 per cent of the loan amount upfront, plus an ongoing trail commission)

The key insight is that the lender pays the broker's commission whether you use a broker or not. That cost is built into the business model. So you are essentially leaving free expert advice on the table by not using one.

When a Broker Adds the Most Value

Brokers are particularly valuable when:

• You are self-employed: Banks have strict income verification. Brokers know which lenders have more flexible criteria for business owners
• You have a small deposit: Some lenders offer better terms for high LVR loans. A broker can find lenders with lower LMI premiums or LMI waivers
• Your situation is complex: Multiple income sources, casual employment, existing investment properties, or non-standard assets require specialist lender knowledge
• You are time-poor: A broker handles the research, comparison, application, and follow-up. Most work outside business hours
• You are refinancing: Brokers track cashback offers and competitive rates across the market, saving you hours of research

The Best Interests Duty

Since January 2021, Australian mortgage brokers are legally required to act in your best interest. This means they must recommend the loan that is most suitable for you, not the one that pays them the highest commission. This law provides strong consumer protection and is one reason broker market share has continued to grow.

Our Recommendation

For the vast majority of borrowers, using a mortgage broker is the smarter choice. You get expert advice, access to a wider market, and someone who handles the complexity for you, all at no cost. Even if you think your bank will give you a great deal, it is worth getting a broker comparison to keep them honest.

The one scenario where going direct makes sense is if you have a long-standing relationship with a bank that is already offering you their absolute best rate, and you have independently verified that rate is genuinely competitive.