Unlock the secrets to proving income for home loans

Why income and employment matter more than most people think

Your income is the first thing a lender assesses when you apply for a home loan.

Lenders need to be confident you can service the loan at a rate at least 3 percentage points above the actual product rate. That buffer has been in place since late 2021, and it means the income you report needs to be stable, verifiable, and consistent with what you can prove on paper. If you're a medical professional working in Liverpool, that can be straightforward if you're on a hospital salary, but it gets more complicated if you have locum shifts, overtime rosters, or income from private billing.

Consider a GP who works three days at a bulk-billing practice in Liverpool, picks up two locum shifts a month in surrounding suburbs, and has been in that pattern for eighteen months. The bulk-billing income is salaried and verifiable through payslips. The locum income is irregular and paid through an agency. Some lenders will include the locum income if it's been consistent for at least 12 months and supported by payment summaries or a letter from the agency. Others won't touch it unless it's been declared on a full financial year tax return. That difference can add $80,000 to $100,000 to your borrowing capacity depending on the lender.

The outcome depends entirely on how the income is structured and which lender sees the application.

What lenders actually want to see in your application

Lenders assess income using a combination of payslips, tax returns, employment contracts, and sometimes a letter from your employer.

For PAYG employees, the standard requirement is your two most recent payslips, a letter of employment confirming your role and salary, and your most recent Notice of Assessment from the ATO. If you've been in your current role for less than six months, some lenders will ask for proof of your previous employment to establish continuity. If you've moved from one hospital to another within the same health network, that usually qualifies as continuous employment. If you've moved between private practices or switched from public to private, that might not.

For self-employed applicants or those with ABN income, lenders typically require two years of tax returns and either financials prepared by an accountant or a letter from your accountant confirming your income. Some lenders will assess on one year of tax returns if you've been self-employed for less than two years but more than 12 months, particularly if your income is strong and your deposit is over 20 per cent.

Medical professionals in their first or second year post-registration often have lower taxable income because of study debt, part-time hours during training, or time spent in unpaid placements. That income history doesn't reflect what you'll earn once you're fully credentialed. Some lenders have specific policies for healthcare workers that allow them to assess your application based on your current contract rather than your tax return, provided you can show you've completed your qualification and your contract confirms a higher ongoing salary. Not all lenders offer this, and not all brokers know which ones do.

How casual and contract income gets treated

Casual and contract income is treated differently depending on how long you've been earning it and whether it's consistent.

Most lenders require at least 12 months of casual or contract income before they'll include it in serviceability. Some will go to six months if the income is high and the role is ongoing. If you're a nurse or allied health professional working rotating rosters with penalty rates, overtime, and shift allowances, those loadings are often excluded unless they've appeared in every payslip for the past 12 months. If your base rate is $70,000 but your actual take-home with penalties and weekend rates is closer to $90,000, the lender might only assess you on the base, which reduces how much you can borrow.

In a scenario like this, a registered nurse working at Liverpool Hospital on a rotating roster that includes night shifts and weekend penalties might be assessed on base salary only by one lender and on average earnings by another. The second lender might require a letter from the hospital confirming the roster is permanent and that penalty rates apply. That letter is not something payroll automatically provides. You need to request it, and you need to know to request it before you lodge the application.

If you're on a fixed-term contract, lenders generally want to see that the contract has at least six months remaining at the time of application, or evidence that the contract has been renewed at least once before. One-off contracts or contracts in the final month before expiry are usually treated as temporary income and excluded.

Why your employment type changes which lenders you should use

Not all lenders assess income the same way, and not all lenders are suitable for all applicants.

If you're a PAYG employee with two years in the same role, a stable salary, and no gaps in employment, almost any lender will consider your application. If you're self-employed, on a contract, earning locum income, or recently changed roles, your options narrow. Some lenders have rigid policies that automatically decline applications outside a narrow set of criteria. Others have flexibility built into their assessment, but only if the application is structured correctly and supported by the right documents.

For medical professionals, there are lenders who understand how the health sector works and have policies designed around hospital rosters, on-call payments, and the way income scales as you move through training and into specialist roles. Those lenders are not always the ones with the lowest advertised rates. If you apply with the wrong lender, you'll either be declined or approved for a smaller loan amount than you could have accessed elsewhere.

A mortgage broker who works regularly with medical professionals in Liverpool will know which lenders to approach based on your employment type, how long you've been in your current role, and what income you're declaring. That knowledge makes the difference between a conditional approval and a decline.

The documents you actually need before you apply

Before you lodge a home loan application, you need to have your income documentation ready.

For PAYG employees, gather your two most recent payslips, a letter from your employer on company letterhead confirming your role, salary, and employment start date, and your most recent ATO Notice of Assessment. If you've been in your role for less than six months, include proof of your previous employment. If you receive overtime, penalties, or allowances, make sure those appear on your payslips and are consistent over at least 12 months.

For self-employed applicants, you'll need your two most recent tax returns including the full return and the Notice of Assessment, and either your financials prepared by your accountant or a letter from your accountant on letterhead confirming your income. If your business is a company or trust, some lenders will also ask for the business tax return and the company or trust financials.

If you have casual or contract income, bring your contract, your payslips covering the most recent 12 months, and a letter from your employer or agency confirming the nature of your engagement and whether the role is ongoing.

If any of your income is paid through an agency, get a letter from the agency confirming your engagement dates, your rate, and the expected continuation of work. That letter often makes the difference between income being accepted or ignored.

Missing documents or documents that don't match your declared income will delay your application or trigger a request for additional information. Lenders won't chase missing paperwork. They'll either decline the application or approve it using only the income they can verify, which means a lower loan amount.

What happens if your income changes during the application

If your income changes between pre-approval and settlement, you need to tell your broker and your lender immediately.

Pre-approval is conditional on your circumstances staying the same. If you change jobs, reduce your hours, move from permanent to contract, or take unpaid leave, your pre-approval may no longer be valid. Some lenders will reassess based on your new circumstances. Others will withdraw the approval and require you to start again.

If you're planning to change roles or reduce your hours, do it after settlement, not before. If the change is unavoidable, talk to your broker before you accept the new role so they can check whether your approval will hold or whether you need to reapply.

If you're moving between hospitals or health networks and your new role starts before settlement, get a letter from your new employer confirming your start date, salary, and that the role is ongoing. That letter should be provided to your lender as soon as your old role finishes. Some lenders will accept the continuity of employment if the gap between roles is less than two weeks and both roles are in the same industry. Others won't.

How Red Sea Lending can help Liverpool residents and medical professionals

We work with residents across Liverpool and surrounding areas including Ingleburn, Campbelltown, and Narellan, and we understand how lenders assess income for medical professionals, shift workers, and contract employees.

We'll review your income documentation before lodgement, identify which lenders are most likely to approve your application based on your employment type, and make sure your application is structured to maximise your borrowing capacity. We'll also explain what each lender is likely to accept, what they'll exclude, and how that affects the loan amount you're approved for.

If you're ready to apply for a home loan, considering refinancing, or you're a first home buyer trying to work out what you can borrow, call one of our team or book an appointment at a time that works for you.

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