The Ultimate Mortgage Broker vs Bank Comparison (2026)

If you’re thinking about a home loan, contacting your bank might seem like the logical move.

For plenty of people it works out fine. But one bank means one credit policy and one set of products, and you don’t see what else is available in the market because they never tell you.

In this article we compare banks vs mortgage brokers at every stage, from first home to investment, so you can tell which one suits your situation.

Mortgage broker vs bank: the differences that matter

You’re not just choosing between a broker and a bank. You’re choosing how many lenders you measure against.

Both are bound by responsible lending obligations, so neither can write you a loan it judges unsuitable. The Best Interests Duty is the additional one, and only brokers carry it.

What a bank offers, and when going direct works

Going direct to your bank isn’t necessarily a mistake. On a straightforward loan, it can land close to the right answer. What matters is knowing what that path gives you and what it can’t.

Where a bank’s strengths lie

• Your details are already on file. They hold your income and repayment history, which can make verification quicker.
• Package products. Offset accounts, package discounts, fee waivers. Worth having, though not a reason to go direct on its own, since a broker can arrange the same packages with the same lenders.
• Dealing with the lender directly. No middle layer to go through. Although the person you speak to is usually selling, and the credit decision is made by an assessment team you won’t speak to either way.
• Private banking. At high total lending levels, some banks assign a relationship manager, and that level of service is hard to replicate. Thresholds aren’t published and vary by bank, generally running into the millions rather than the hundreds of thousands.

Where a bank falls short

• They can only sell you their own products. CBA can’t recommend an ANZ loan, even where ANZ is offering a lower interest rate. A bank is just one option, and that’s the whole limitation in one sentence.
• One serviceability calculator. Lenders assess the same income and expenses differently. If your bank’s model declines you at $600,000, another lender might approve you at $650,000 on identical numbers, and you’ll never find that out by asking one bank.
• No Best Interests Duty. Bank staff have to lend responsibly. What they don’t carry is a duty to act in your best interests when recommending a product, which leaves them free to put their own product set first.
• Silence after settlement. Banks rarely make contact unless you give them a reason to, like lodging a discharge authority when you want to refinance to another lender. Your rate doesn’t drift down on its own, and nobody at the bank is paid to tell you it has slipped behind the market.

Why use a mortgage broker instead of a bank?

Access to a 30+ lender panel

Mortgage brokers like Approov work with a panel of 30+ lenders, but the raw number isn’t the point. What matters is that those lenders run different credit policies, different serviceability models, and different appetites for different kinds of borrower.

That variation is where the value sits.

• One lender counts overtime income in full while another discounts it.
• One accepts a two-year self-employment history where another wants three.
• One is comfortable with a 5% deposit, another won’t go past 10%.

A broker’s job is knowing which door you fit through before you knock.

Best Interests Duty: what a broker owes you

Mortgage brokers are legally required to act in your interests rather than their own, or the lender’s. This is the Best Interests Duty under the National Consumer Credit Protection Act, and it applies to every broker in Australia.

Bank staff have no equivalent obligation, which isn’t a criticism. They’re selling their employer’s products. That’s a perfectly legitimate job, but it’s different from the job a broker is legally bound to perform.

How many Australians use a mortgage broker?

81.0% of new residential home lending in Australia went through mortgage brokers in the March 2026 quarter, according to MFAA figures.

A market share that size doesn’t prove brokers deliver better outcomes. What it does tell you is that the broker channel is now the ordinary way Australians borrow rather than the alternative one.

Mortgage broker vs bank at each stage

The broker-versus-bank question doesn’t have one answer, because the size of the gap between lenders changes depending on what you’re trying to do.

Is a mortgage broker worth it for a first home buyer?

This is where a broker usually helps most, because lender policy varies more for first home buyers than for anyone else. Deposit size, the 5% Deposit Scheme and other low-deposit routes, Lenders Mortgage Insurance (LMI), and whether a guarantor is on the table all change which lender fits.

Getting it wrong is expensive. Going to one bank, being told you need a 20% deposit, and waiting another two years to save it is the most common avoidable outcome we see. See first home buyers for how the routes compare.

Upgrading: bridging finance and settlement timing

The complication when swapping from one home to another is timing rather than eligibility. You’re usually selling and buying at once, which raises questions about bridging finance, deposit bonds, and whether your settlements line up.

Not every lender offers bridging, and the ones that do price it differently. A bank will tell you what it does, and it won’t tell you what the lender down the road does better. More on upgrading.

Refinancing: are you paying more than a new customer?

Bank interest rates tend to work like this: lenders compete hard on the rates they advertise to new borrowers, and the rate you’re already on only moves if you make it move.

The ACCC put numbers on that gap. As at September 2020, borrowers with loans three to five years old were paying about 0.58 percentage points more interest than the average new-loan rate. Borrowers with loans more than ten years old were paying about 1.04 percentage points more. On a $600,000 balance, 0.58 percentage points is roughly $3,500 a year.

The gap has closed a long way since. The RBA credits borrowers refinancing or renegotiating for the change.

So the average borrower isn’t being excessively overcharged any more, and that’s because the average borrower did something about it.

Call your bank first and ask what they can do for you. If the answer is very little or nothing, that’s when a broker is worth involving.

Investment property: how the first loan shapes the second

Lenders vary most here. Rental income is shaded differently from one lender to the next, debt-to-income thresholds differ, and interest-only terms and pricing move around.

If you plan to buy more than one property over time, how the first loan is structured affects whether the second gets approved. That’s a strategy conversation, and a single bank can’t have it with you because it can only see its own book. See investment property loans.

Do mortgage brokers get better interest rates?

Mostly no, and anyone telling you otherwise is overselling.

Brokers access broadly the same pricing as banks’ direct channels. Sometimes a broker-only product appears, and sometimes a bank’s retention team beats a broker’s offer to keep a customer. The difference usually lands within about 0.15 percentage points either way, which on a $600,000 loan is roughly $900 a year.

That’s not nothing. Rate is important, but it’s not the only thing.

The bigger variable is whether you’re approved at all, for the amount you need, with a structure that doesn’t limit your options down the track.

Common criticisms of mortgage brokers

There are three ways the broker model is sometimes questioned, and one situation where going direct simply wins.

Do broker commissions create a conflict of interest?

Brokers are paid by the lender when your loan settles, not by you. The lender pays because the broker has done work the lender would otherwise do itself: packaging the application, verifying the documents, and getting the file to a standard an assessor can approve.

MFAA sets out the structure: an upfront commission is paid on the amount you draw, then a trailing commission runs for the life of the loan. Commissions are also subject to clawback, so if the loan is discharged within 18 months to two years the lender reclaims some or all of the upfront commission.

So does a broker steer you toward whoever pays most? ASIC found the median upfront rate did vary between lenders, from 0.46% to 0.65%, so there is something there. That variation is the reason the Best Interests Duty and mandatory disclosure exist, rather than the question being left to goodwill.

It isn’t a perfect system, but it’s a regulated one, and a bank selling you its own product has no equivalent commission to disclose, because there’s no third party paying it. Four in five borrowers see that disclosure and use a broker anyway.

Does using a broker slow the application down?

It can, if the broker is disorganised. A good one speeds things up by knowing which lender to approach, what that lender needs, and how to package an application so it doesn’t bounce back for more documents. A good broker will take red tape off your plate. A poor one adds a layer of delay and nothing else.

That’s more about the individual broker than about the model.

Does quality ultimately depend on the broker?

Broker is a wide label. Some write hundreds of loans a year across every situation, some write a handful, and some are strong on first home buyers while out of their depth on self-employed income or investment structuring.

It’s important to do your due diligence and ask any questions you need to satisfy yourself that you’re dealing with a good operator.

When going direct to a bank is the better decision

If you hold private banking access, a meaningful package discount, and a relationship manager who answers the phone, consolidating with one lender can lead to a better outcome. It’s one case where the single-lender limitation is outweighed by what you’re already getting.

If that’s you, get a broker to compare anyway. A good one won’t be offended, and you’ll either confirm you’re already well placed, or find out there are better options.

What happens to your loan after settlement?

Most banks stop at approval. Get the loan, settle, and that’s where the advice stops, which is a strange place to finish for a debt you’ll hold for thirty years.

Choosing between a broker and a bank takes an afternoon. The loan it produces might last decades, so it pays to ask who'll be reviewing it in year three.

With a bank, the relationship turns transactional once the loan settles. If a sharper rate appears, nobody is going to call. If your fixed term is ending, you may get a letter offering the current variable rate.

With a broker, the trailing commission is paid for precisely this reason: reviewing the loan, renegotiating the rate, and handling what comes up over the lifetime of the loan. That’s the structural answer. In practice it’s uneven, because some brokers check in around the anniversary and others wait for you to contact them with a query or concern.

Approov is built the other way round. Your file stays open after settlement instead of closing, so a fixed rate approaching expiry, a rate move, or a change in your equity position are things we raise with you, rather than something you have to notice yourself. A licensed broker drives the strategy. You share your details once and they’re already there for the next move, which is what makes property #2 easier than property #1.

So, should you use a mortgage broker or go direct to a bank?

For a straightforward loan with a strong bank relationship, going direct is reasonable. For everything else, the advantage is structural: more lenders assessing you, a legal duty to act in your interests, and someone still watching the loan after settlement.

To see what your file looks like across a 30+ lender panel and plan your lending properly, book an obligation-free Lending Strategy Session.

Frequently asked questions

Is it better to go through a broker or a bank?

It depends on how straightforward your situation is. With a strong existing bank relationship, a large deposit and salaried income, a bank can serve you well. If you’re self-employed, buying with a small deposit, carrying other debts, or you want to compare what different lenders will actually approve, a broker covers ground a single bank can’t. 81.0% of new residential lending in Australia went through brokers in the March 2026 quarter.

What are the disadvantages of using a mortgage broker?

Three real ones. Brokers are paid commission by lenders, which is a conflict that the Best Interests Duty regulates but doesn’t eliminate. A disorganised broker can slow an application down. And quality varies widely, so the individual broker matters more than the label does. If you hold private banking access with significant discounts, going direct may also be better.

Do mortgage brokers get you better rates?

Usually not by much. Brokers access broadly the same pricing as bank direct channels, with the difference typically landing within about 0.15 percentage points either way. The larger value sits in which lender you end up with and whether you’re approved for what you need, rather than in shaving the rate.

Does using a mortgage broker cost me anything?

For most residential home loans in Australia you don’t pay the broker. They’re paid a commission by the lender once your loan settles, and that commission has to be disclosed to you in writing before you proceed. Some brokers charge a fee for complex or commercial work, which also has to be disclosed up front. Bank fees such as application or valuation charges are separate and apply either way.

Is a mortgage broker worth it for a first home buyer?

This is arguably where a broker helps most. Lender policies on deposit size, Lenders Mortgage Insurance (LMI), government schemes and guarantor arrangements vary a great deal, and those differences decide whether you buy this year or in two years. Asking one bank and accepting its answer is the most common expensive mistake.

Can a mortgage broker get me approved when a bank said no?

Sometimes, though nobody can promise it. A decline from one lender reflects that lender’s credit policy rather than a universal verdict, and another lender may assess your income type, employment history or existing debt differently. A broker’s role is knowing which lenders are likely to view your situation more favourably. If your circumstances genuinely fall outside responsible lending requirements, no broker should be arranging finance for you.

How do I check a mortgage broker is legitimate?

Every credit representative in Australia has a number you can verify on ASIC’s register, and every broker must belong to the Australian Financial Complaints Authority. Both are public. A broker who won’t readily give you their credit representative number isn’t one to proceed with.

Disclaimer: This is general information, not personal credit advice. The commission rates, rate differences and dollar figures above are illustrative, are drawn from the dated sources linked in the text, and will not match every lender or every file. Lender credit policy, pricing and commission schedules all change without notice. Nothing here is a quote, an approval or a promise about what any lender will do with your application.