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Tradie Home Loans Sydney — Complete Guide for Builders & Plumbers

By the Mortgagefy Team · Published · 7 min read

You're a builder or plumber running a successful ABN. Some months you're pulling $15,000+. Your annual income is solid — $120,000 to $180,000+ depending on how busy you are. Yet when you try to get a mortgage, banks tell you they can't assess your income because it doesn't fit their PAYG lending boxes. They see variable monthly invoicing and assume you're unreliable.

This is wrong. Tradie income is some of the most documented, predictable income in Australia. Your ABN is registered with the ATO. Your BAS statements prove GST paid. Your invoices and bank deposits show exactly where the money comes from. Yet mainstream banks built their systems around PAYG employees and haven't caught up.

How Banks Misunderstand Tradie Income

The problem: mainstream lenders see monthly variation and assume instability. They don't understand that tradie income follows industry cycles — busy building seasons, quiet winter months, and the natural ebb and flow of construction work.

What they do wrong:

  • They ignore BAS statements: Even though your BAS shows GST paid (proof of real income), they focus only on tax returns
  • They assess on lowest earning month: If December was slow, they assess your full-year income down to December's level
  • They average tax returns: Two bad years in a row? They won't look at current year's ABN earnings
  • They question legitimacy: "Is this income stable?" — asked like ABN income is somehow suspect

What specialist lenders do right:

Specialist lenders who understand construction and trades assess your full ABN income based on 2+ years of BAS statements, current year-to-date invoicing, and client diversity. They know that seasonal variation is normal. They structure your assessment around your real earning capacity — not lowest-month scenarios.

Documentation That Proves Your Income

To get assessed properly, bring this documentation:

  • Last 2 years BAS statements: Quarterly GST returns showing turnover and GST paid. This is your strongest proof
  • Last 2 years tax returns: Personal tax return + business tax return (if applicable)
  • Current year bank statements (6-12 months): Shows invoice deposits and payment patterns
  • Current year invoices: Shows clients and project values (lenders assess pipeline confidence)
  • ABN lookup: Proof your ABN is active and in good standing (1-minute ATO lookup)
  • Client letters (optional but strong): If major clients (developers, builders) write a letter confirming ongoing work, this demonstrates income stability

BAS statements are your most powerful tool. They show ATO-verified turnover and prove you're a registered, compliant business operator.

Illustrative Example: Mike the Builder

Mike runs a building business. His last two tax returns show $140,000 net income annually. But this year he's on track for $180,000 because he's got three active projects.

At a mainstream bank: Assessed on $140k (last tax return) → borrows $560k-$700k → can't afford the property he wants.

With specialist lender: Current year BAS shows $120k turnover (9 months in) + invoiced pipeline of $60k waiting collection → assessed on $180k full-year run-rate → borrows $720k-$900k → buys the property.

That's a $150,000+ difference in borrowing power — just from being assessed fairly on current year's actual earning trajectory.

📋 Illustrative Example

This example is for demonstration purposes and shows how assessment might work. Individual outcomes vary significantly based on specific circumstances, documentation, lender criteria, and market conditions. This is not an actual client case.

Seasonal Income & Year-Round Earning

If your income is seasonal (e.g., building season Sept-May, quiet June-Aug), specialist lenders assess on your average annual income across 2+ years — not your lowest month. A plasterer earning $200k in 8 months is assessed on $200k annual average, not $0 during quiet months.

Pipeline matters too. If June-August shows $0 revenue but September's projects are already invoiced or contracted, lenders will factor in that committed work.

ABN Structure & Partnership Setups

If you're in a partnership or run multiple ABNs (e.g., one for labour, one for contracting):

  • Bring BAS for each ABN you draw income from
  • If in a partnership, bring partnership deed + your share of profit & loss
  • Lenders will combine income across all your ABNs
  • The key: all income must be documented and legitimate

Your Next Steps

If you're a tradie in Sydney ready to buy or refinance:

  1. Gather documentation: BAS statements (2 years), tax returns, current year bank statements, invoices
  2. Calculate your borrowing power: Use our borrowing power calculator to see what you could borrow based on your ABN income
  3. Get a proper assessment: Talk to a broker who specialises in tradie lending, not just general PAYG
  4. Compare loan options: Use our comparison rate calculator to see the true cost across different lenders
  5. Speak to us: We'll structure your ABN income properly and get you approved at a rate that reflects your actual earning power

Ready to get assessed on your real income?

Our mortgage assistant understands tradie ABN income. Get a straight assessment based on your BAS statements and invoicing, not generic guesses. Free, no obligation, takes under 3 minutes.