How Brokers Get Tough Home and Business Loans Approved

In Australia, a mortgage broker often gets a loan approved that a bank has already declined because different lenders apply different credit policies and risk appetites. The broker’s job is to understand those rules, match you to the right lender, and present your application in a way that fits policy. That’s why around 70% of new home loans are now written through brokers, not directly with banks (/insights/benefits-using-mortgage-broker-australia).

This guide explains how credit policy really works, why a broker can improve your approval odds, and what you can do this week if your situation is complex, you’re self‑employed or you’ve already had a decline.

1. Why one bank says no when another will say yes

When you walk into a bank branch, you’re really asking one question: “Am I a fit for this single lender’s credit policy?” If the answer is no, it can feel like you’ve hit a brick wall.

A broker changes the question to: “Which lender’s policy best fits my situation and goals?” That sounds subtle, but it’s the difference between:

• One set of rules vs dozens of options
• A pass/fail answer vs a strategy to get you to ‘yes’ – now or in a few months

1.1 What “credit policy” actually means

Credit policy is the rulebook each lender uses to decide whether to approve you. It covers things like:

• Minimum income and job history
• How they treat overtime, bonuses, commissions and self‑employed income
• How much of your existing debts they count
• Maximum loan‑to‑value ratio (LVR) and when Lenders Mortgage Insurance (LMI) applies
• How strict they are on credit history, late payments and past defaults

Two lenders looking at the same borrower can get very different answers because their rulebooks are different.

1.2 Why approvals are getting harder to predict

In the last decade, lending rules have tightened significantly:

• APRA now requires lenders to test your borrowing at an interest rate at least 3 percentage points above the actual rate (APRA, prudential practice guides).
• Living expenses are benchmarked using the Household Expenditure Measure (HEM), then compared to what you actually spend.
• Comprehensive credit reporting means most banks now see your repayment conduct and other limits across the market.

That complexity is a big reason more borrowers use brokers rather than trying to decode every bank’s rules themselves.

2. How Australian credit policy works in practice

Understanding the main levers lenders pull makes it easier to see where a broker can help.

2.1 Serviceability and the APRA buffer

“Serviceability” is whether the lender thinks you can comfortably afford the loan.

Most lenders will:

1. Take your gross income, apply discounts for more variable income types.
2. Subtract tax, a living expense benchmark (or your actuals, if higher) and all your existing debts.
3. Test your proposed loan at a rate at least 3% higher than the actual rate, as required by APRA.

Worked example (simplified):

• Couple, combined PAYG income: $180,000
• Actual interest rate offered: 6.0% p.a. (illustrative only)
• Assessment rate: 9.0% p.a. (6.0% + 3.0% buffer)
• Existing credit card limits: $20,000 (assessed at ~3% per month = $600)

For a 30‑year principal & interest loan, that $600 per month can reduce borrowing power by well over $100,000 because it’s treated as a long‑term commitment. A broker may suggest reducing unused limits before applying.

2.2 LVR, LMI and property type

Lenders care about both you and the property. Key policy settings include:

• LVR thresholds: Below 80% is usually preferred. Above 80%, LMI often applies. Some lenders will go to 90–95% for strong borrowers; others won’t.
• Security type: Non‑standard properties (small units, high‑density, rural, company title) can cause issues with some lenders but not others.
• Purpose: Investment and interest‑only loans are generally assessed a little more conservatively than owner‑occupied, principal & interest.

A broker knows which lenders are comfortable with your specific property type and LVR, and which ones to avoid.

2.3 Credit history and conduct

Policy also covers how lenders view your past behaviour:

• Late payments on credit cards, personal loans or existing mortgages
• Defaults, judgments or past bankruptcies
• Number and recency of credit enquiries

Multiple recent applications – even if approved – can drag down your score and complicate a refinance or new loan (/insights/refinancing-costs-risks-application-process-australia). A broker structure usually means one targeted application instead of a scattergun approach.

2.4 Income types and documentation

This is where many tough files live – especially for self‑employed borrowers and small‑business owners.

Lenders often treat income differently depending on:

• PAYG vs self‑employed
• Overtime, commissions, bonuses and allowances
• Dividends and trust distributions
• Foreign income

There are also different documentation pathways – full‑doc, alt‑doc and (more rarely now) low‑doc. Each has different pricing and policy settings, with alt‑doc loans often 0.50–1.50 percentage points more expensive than full‑doc for the same borrower profile (/insights/documentation-pathways-full-doc-alt-doc-low-doc-options).

A good broker understands these pathways and how to prove your real income in lender language.

Serviceability, buffers, LVR and credit history are the main levers in Australian credit policy.