Top tips to secure a home loan as a self-employed plumber

Self-employed plumbers can get approved for a home loan.

The difference is what lenders ask for upfront. Where a wage earner hands over two payslips, you need to show your business income over at least one full financial year, sometimes two. Lenders want proof your income is consistent and your business is trading profitably. If you meet that standard, the loan structure, the rate and the product features work the same way as any other home loan.

What lenders look for when you work for yourself

Lenders assess self-employed applicants using tax returns, usually the Notice of Assessment from the ATO for the most recent one or two years. They look at your taxable income after deductions. If you claim depreciation on tools, a home office, or your ute, those deductions reduce what lenders consider your income to be. That creates a gap between what your business actually earns and what the lender will lend against.

Consider a plumber who clears $120,000 in revenue but writes off $30,000 in legitimate deductions. The taxable income is $90,000. The lender uses the $90,000 figure when calculating your borrowing capacity. If your tax return shows $65,000 after deductions, that is the income lenders will assess you on, even if cash flow is much stronger.

The same serviceability buffer applies to self-employed borrowers as it does to employees. At current variable rates, lenders still assess your ability to repay at a rate roughly 3 percentage points above the product rate. For a plumber applying for a variable rate loan, that buffer is applied whether you submit payslips or tax returns. The lending limit is about your declared income, not your employment type.

How long you need to be trading before applying

Most lenders require at least one full financial year of self-employed trading, with a complete tax return lodged and assessed by the ATO. Some will accept a shorter trading history if you moved from a wage role in the same industry into your own ABN, especially if you were employed as a plumber for several years before going out on your own. That continuity matters.

If you have been trading for 12 months but have not yet lodged a return, most lenders will not proceed until the ATO has issued a Notice of Assessment. A small number of lenders will work from financial statements prepared by your accountant, but those applications usually require a larger deposit and come with higher scrutiny. For a straightforward approval with access to competitive rates, lodge your return and wait for the assessment before applying.

Two years of trading history opens up more lenders and better pricing. Some lenders average your income across two years, which helps if your second year was stronger than your first. Others take the lower of the two figures, which penalises you if income dropped. Knowing which lender uses which method makes a material difference to how much you can borrow and what rate you are offered.

The paperwork that strengthens your application

You will need your ATO Notice of Assessment for at least the most recent financial year. If you have two years of returns, provide both. Lenders also ask for business bank statements covering the most recent three to six months. Those statements show cash flow, regular deposits, and whether your business account sits in credit or frequently overdraws.

If your business structure is a company or trust, lenders will ask for financials prepared by a registered accountant, sometimes a profit and loss statement or a balance sheet. Sole traders are usually assessed on tax returns and bank statements alone. A current ABN registration, proof of business registration, and in some cases a letter from your accountant confirming your ongoing trading status will also be requested.

Keep your business and personal expenses separated. Lenders calculate your living costs based on your personal spending. If business costs run through your personal account, those transactions inflate your living expenses and reduce what the lender thinks you can afford to repay. A plumber who pays suppliers or fuel from a personal account will see those costs treated as household spending, which reduces serviceability unnecessarily.

Choosing between variable, fixed and split rates

A variable rate gives you flexibility to make extra repayments without penalty, which suits plumbers who invoice irregularly or finish a large commercial job and want to pay down the loan in a lump sum. Rates move with the market, so your repayment amount can rise or fall depending on what the Reserve Bank and your lender decide.

A fixed rate locks your repayment for a set term, usually one to five years. That certainty helps when quoting jobs or planning your household budget, but you lose the ability to make large extra payments without incurring break costs. If rates drop during your fixed term, you are still locked into the higher rate until the term expires.

A split loan divides your borrowing between fixed and variable portions. You might fix 60 per cent of the loan and leave 40 per cent variable, which gives you some repayment certainty and some flexibility to chip away at the variable portion when cash flow allows. The exact split depends on your income pattern and your tolerance for rate movements.

Why income declared to the ATO is the only income that counts

Lenders do not accept cash income that is not reported on your tax return. If you earn $100,000 but only declare $70,000 to the ATO, lenders assess you on $70,000. Some brokers used to work around this with low doc loans that accepted declared income without full tax returns, but those products now require much higher deposits, often 20 per cent or more, and the rates are higher than standard home loans.

The better approach is to work with your accountant in the year or two before you apply for a home loan and keep your deductions to what is necessary rather than maximising every possible write-off. That strategy increases your taxable income and improves your borrowing capacity. Once the loan is approved, you can adjust your deductions again in future years if needed.

Consider a plumber who wants to borrow $600,000. At current lending ratios, that requires taxable income of roughly $85,000 to $95,000 depending on other debts and household size. If your tax return shows $70,000, you are not getting that loan approved without a much larger deposit or a co-borrower. Lifting your declared income by $20,000 in the year before you apply can be the difference between approval and rejection.

Offset accounts and how they work with uneven income

An offset account is a transaction account linked to your home loan. Every dollar sitting in the offset reduces the balance on which interest is calculated. If you have a $500,000 loan and $30,000 in your offset, you only pay interest on $470,000. The full loan balance is still $500,000, but the interest cost is lower.

For plumbers with uneven income, an offset account lets you park large payments from clients and reduce your interest cost immediately without formally paying down the loan. You still have access to that cash if a supplier invoice comes through or your ute needs repairs. That flexibility matters more when your income does not arrive in regular fortnightly amounts.

Not every loan product includes an offset account. Some fixed rate loans do not offer one at all. Others charge a higher interest rate or an annual fee for the offset feature. When comparing home loan options, check whether the offset is included, whether it is a full 100 per cent offset or a partial offset, and what the cost is to maintain it.

Company and trust structures: what changes for your application

If you operate as a sole trader, lenders assess your personal tax return and your personal income. If your business is structured as a company or trust, lenders treat the business as a separate legal entity. You need to show the business is profitable and that you are drawing a consistent wage or distribution from that entity.

Lenders usually ask for two years of company or trust financials, a profit and loss statement, and evidence of distributions or director's wages paid to you personally. They assess your personal income based on what you actually receive from the business, not the total profit the business makes. A plumbing business turning over $400,000 in revenue does not mean you personally earn $400,000. If you only draw $80,000 as a wage, that is what lenders will assess.

Some lenders add back certain business expenses like depreciation or one-off write-offs to inflate your assessed income slightly. Others do not. The structure you choose affects your tax position, your liability, and your borrowing capacity. If you are planning to apply for a home loan in the next 12 months and currently operate through a company or trust, talk to your accountant and your broker at the same time so your income structure supports your borrowing goals.

What happens if your income dropped in the most recent year

If your most recent tax return shows lower income than the previous year, some lenders will decline the application outright. Others will average the two years, which softens the impact. A few will accept the lower figure but reduce the amount they are willing to lend.

A plumber whose income fell from $95,000 to $70,000 due to taking time off for an injury or a slow patch in the business will find it harder to get approved at the higher borrowing limit. If the drop was temporary and your accountant can provide a letter explaining the circumstances and confirming your current pipeline of work, some lenders will consider that context. Others will not.

The safest approach is to apply when your most recent year is your strongest year. If you know income dropped last year and is now recovering, wait until you lodge the next return showing that recovery before applying. That might mean delaying your purchase by six months, but it also means you get approved at the amount you need rather than being capped at a figure based on your worst year.

Call one of our team or book an appointment at a time that works for you. We work with over 40 lenders and know which ones assess self-employed income in a way that suits plumbers, which ones accept one year of trading, and which ones offer offset accounts and genuine rate discounts without monthly fees or conditions you will never meet.

Frequently Asked Questions