The Deposit Problem Is Overblown
You don't need 20% to buy property. That figure gets thrown around like it's a hard rule, but it's just the threshold where you avoid Lenders Mortgage Insurance. Plenty of lenders will back a FIFO heavy diesel mechanic with 5% to 10% if your income is solid and consistent. The real question is whether you can service the loan once you're in, not whether you can wait another three years to hit some arbitrary deposit target.
Consider a diesel mechanic on a three-week on, one-week off roster pulling in $130,000 annually with regular overtime. You're working in WA's Pilbara or Queensland's Bowen Basin, living on-site most of the year, and spending far less than someone commuting daily in a metro area. Your expenses are already lower than most borrowers. That combination of high income and controlled spending makes you a strong candidate for low deposit loans for FIFO workers, even if your savings account doesn't look like a mortgage deposit yet.
Lenders Mortgage Insurance Isn't a Roadblock
LMI gets added when you borrow above 80% of the property value. It protects the lender, not you, but it doesn't stop you from buying. It just means you'll pay a one-off premium that gets rolled into your loan amount. For a FIFO worker with stable employment and verifiable income, LMI is often waived or reduced by lenders who understand the industry. Some will go to 90% without charging it at all if you meet their criteria.
In our experience, mechanics who assume they need to save another $40,000 before applying often don't realise they could be paying down their own mortgage instead of rent. A 10% deposit on a property valued at the current median in a regional mining town could mean $20,000 upfront plus settlement costs, not the $80,000 they think they need. If you're eligible for an LMI waiver, that gap narrows further. The cost of waiting is usually higher than the cost of LMI.
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How Your FIFO Income Actually Stacks Up
Lenders assess your borrowing capacity based on your base salary plus any allowances that show up consistently on your payslips. Site allowances, overtime, and shift loadings all count if they're regular. As a heavy diesel mechanic, your total package often sits well above what metro tradies earn, and lenders recognise that. The issue is making sure your income is documented properly so it's counted in full.
You'll need recent payslips that show the breakdown of your earnings, plus a letter from your employer confirming your roster and typical allowances. Some lenders want to see at least three months of consistent pay, others want six. If you've been contracting or moving between sites, it gets more involved, but it's still workable. The key is getting in front of a broker who knows how to present your income in a way that maximises your borrowing capacity without triggering red flags.
Variable or Fixed Rate on a Tight Budget
Variable rates give you flexibility. You can make extra repayments, redraw if you need cash, and refinance without penalty. Fixed rates lock in your repayment amount for a set period, which can help if you're budgeting on a strict schedule or expect rates to climb. For FIFO workers, a split loan often makes sense. You fix part of your loan to cover your minimum repayments, then keep the rest variable so you can throw extra cash at it during high-earning swings.
If you're rostered on for 21 days straight and your living costs are covered, you can make serious dent in a variable portion without worrying about break costs. The fixed portion keeps your budgeting predictable while you're off-roster and covering household expenses. This isn't about getting the lowest rate on paper. It's about structuring your loan so it moves with your income pattern, not against it.
Offset Accounts When You're Barely Home
An offset account sits alongside your home loan and reduces the interest you pay based on the balance sitting in it. If you've got $15,000 in your offset and you owe $400,000 on your mortgage, you only pay interest on $385,000. It's a simple setup, but it works particularly well for FIFO workers who bank their full pay while on-site and draw it down slowly while off-roster.
You're not earning interest on that offset balance, but you're saving more on your loan than you'd earn in a savings account anyway. It also keeps your cash accessible without locking it into the loan itself, which matters if you need to cover an unexpected cost or want to keep your options open. Not every loan product includes a linked offset, and some lenders charge extra for it, so it's worth comparing features upfront rather than assuming it's standard.
Getting Pre-Approval Before You Start Looking
Pre-approval tells you what you can borrow before you start hunting for property. It's not a guarantee, but it's close. It means a lender has reviewed your income, expenses, and credit file and confirmed they'll lend you a specific amount, subject to valuation and final checks. For FIFO workers, this step matters because it removes the uncertainty around whether your roster or income structure will be accepted.
You'll go through most of the application process upfront, submit your documents, and get a conditional approval that lasts 90 days in most cases. Once you find a property, the lender values it and finalises the loan. Getting loan pre-approval means you can move quickly when the right place comes up, and you're not scrambling to pull documents together while someone else swoops in with an unconditional offer.
Why First Home Buyers Get More Help Than You Think
First home buyers can access government schemes that reduce the deposit requirement to 5% without paying LMI. The schemes are aimed at people buying under certain price caps, and they're available across Australia with different limits depending on location. If you're buying in a regional area near a mine site, the price cap is often high enough to include most of the available stock.
You'll need to meet income limits and buy a home you'll live in, not an investment property. For a single FIFO worker, the income cap might exclude you in some states if you're earning above a certain threshold, but it's worth checking before you assume you don't qualify. These schemes change regularly, so what didn't apply six months ago might be available now. A broker who works with FIFO clients will know which lenders participate and whether your circumstances fit.
What Happens When Rates Move
Your repayments go up if you're on a variable rate and the Reserve Bank lifts rates. If you're on a fixed rate, nothing changes until your fixed period ends. The risk with fixing is that if rates drop, you're stuck paying the higher amount unless you want to cop break costs. The risk with variable is that your repayments can jump without warning, which is harder to manage if your budget is already stretched.
Most FIFO workers can absorb small rate rises because their income is higher than average and their living costs are lower while on-site. If you've set your loan up with an offset account and you're building a buffer during your rostered swings, a 0.25% rise might cost you an extra $50 a month, which is manageable. The issue is when you're borrowing at your absolute limit with no room to move. That's where a split loan or a fixed portion gives you breathing space without locking you in completely.
Refinancing When Your Loan Stops Working
Your loan should move with your situation. If you've been paying down your mortgage for two years and your LVR has dropped, you might qualify for lower rates or additional features you couldn't access before. If you've picked up more overtime or moved to a higher-paying role, your borrowing capacity has probably increased, which means you could refinance to pull out equity for renovations or an investment property.
Refinancing isn't just about chasing a lower rate. It's about making sure your loan structure still fits your income and goals. If you're stuck on a loan with no offset, high fees, and limited flexibility, home loan refinancing for FIFO workers could save you thousands over the life of the loan. Most people refinance every three to four years, not because they're chasing deals, but because their circumstances have changed enough to justify a better setup.
Call one of our team or book an appointment at a time that works for you. We'll review your income, work out what you can borrow, and get you into a loan that actually fits your roster and spending pattern.
Frequently Asked Questions
Do I need a 20% deposit to buy a house as a FIFO heavy diesel mechanic?
No, you don't need 20% to buy property. Many lenders will back FIFO workers with 5% to 10% deposits if your income is solid and consistent. The 20% figure is just the threshold where you avoid Lenders Mortgage Insurance, not a requirement to get a loan.
Does Lenders Mortgage Insurance stop me from buying with a smaller deposit?
LMI doesn't stop you from buying. It's a one-off premium that gets added to your loan when you borrow above 80% of the property value. Some lenders waive or reduce LMI for FIFO workers who meet their criteria, particularly at 90% LVR.
How do lenders assess my FIFO income for a home loan?
Lenders count your base salary plus any regular allowances shown on your payslips, including site allowances, overtime, and shift loadings. You'll need recent payslips and a letter from your employer confirming your roster and typical earnings to make sure your full income is recognised.
Should I choose a variable or fixed rate as a FIFO worker?
A split loan often works well for FIFO workers. You fix part of your loan to keep repayments predictable, then keep the rest variable so you can make extra repayments during high-earning periods without penalty. This structure matches the pattern of your income and expenses.
What is pre-approval and why does it matter for FIFO workers?
Pre-approval means a lender has reviewed your income, expenses, and credit file and confirmed they'll lend you a specific amount before you start looking for property. It removes uncertainty around whether your roster or income structure will be accepted and lets you move quickly when you find the right place.
