Do banks understand engineer income?

Most mainstream banks struggle with engineer income. Project-based roles, contract work, consulting, and variable annual bonuses don't fit PAYG assessment models. Specialist lenders understand that tech and civil engineer income is complex but legitimate.

How do I prove project-based income?

Payslips showing base salary and project allowances, employment contract outlining your role, 2 years tax returns, and bank statements showing regular deposits. For consulting work: invoices, ABN history, or contracts with regular clients.

Can I borrow more as a consultant or contractor?

Yes, if you have documented income history. Contractors with 2+ years of contracts showing consistent income can be assessed on full annual income. This often exceeds PAYG assessment by $50,000-$150,000+ in borrowing power.

What about equity compensation?

Tech professionals with equity (stocks, options, RSUs) can have that included in income assessment if vested and liquid, or if backed by a solid employment contract showing likelihood of continued equity grants.

How do startups and founders get assessed?

Startup founders are assessed on documented business income (tax returns, bank statements, profit & loss), plus any salary they draw. If the business is early-stage, personal guarantees or additional documentation may be required.

Professional Mortgages

Engineer Home Loans Sydney — Complete Guide for Tech & Civil Engineers

By the Mortgagefy Team· Published Sept 14, 2026· 7 min read

You're a senior software engineer or civil engineer earning $180,000+ per year. But here's the problem: your payslip shows a base salary of $120,000, and the rest comes from bonuses, project allowances, or consulting work that doesn't show up consistently on one payslip.

You apply for a mortgage and the bank tells you your borrowing power is based on $120,000 — your base salary. They ignore the $60,000+ in documented, predictable, repeating income that makes up your actual earning power. You're locked out of the property bracket you can genuinely afford.

This isn't unique to you. Every engineer in Sydney who works on a variable compensation model faces this. And it's wrong. Your income is real. It's documented. It's repeating. But legacy lending systems don't know how to assess it fairly.

How Engineers' Income Actually Works

Engineer compensation structures are complex because they're designed to attract and retain talent:

Base salary: The guaranteed portion, typically 60-70% of total compensation
Performance bonus: Usually 10-30% of base, paid annually or quarterly
Project allowances: Leadership, project management, or specialist work premiums
Stock/equity: Vesting schedules (RSUs, options) that create repeating annual income
Consulting work: For contractors, regular client engagements showing 2+ years history
Tech stack premiums: Additional pay for specialist skills (cloud, AI, security)

All of this is documented, verifiable, and repeating — not one-off bonuses.

Why Mainstream Banks Get It Wrong

Standard lenders use a simple rule: assess on the most recent 2 years of tax returns. This works for PAYG employees with stable income, but for engineers it creates three problems:

Problem 1: Tax Returns Lag Reality
You might have just switched to a new company with higher compensation, but your tax return still reflects the old job. Banks will assess the lower old income until next year's tax return arrives.

Problem 2: Bonuses Get Averaged Down
If you got a large bonus one year and a smaller one the next, the average might be below what you're actually likely to earn. Banks won't look at your contract and assess the more accurate figure.

Problem 3: Equity is Ignored or Undervalued
Vesting stock (RSUs) is real, documented, repeating income — but many mainstream banks won't count it at all, or count it at a heavy discount. This can cost you $100,000+ in borrowing power.

Documentation You'll Need

To get assessed fairly as an engineer:

Last 2 years payslips (showing base + bonuses, allowances, and any equity vesting)
Employment contract or offer letter outlining your role and compensation structure
Equity grant schedule (if applicable) showing vesting timeline
Last 2 years tax returns
Bank statements (6-12 months) showing regular deposits
Letter from your employer confirming base salary, bonus structure, and likelihood of continuation
For consulting: contracts with regular clients, invoices, or ABN history

This documentation gives specialist lenders the full picture — your actual earning power, not just what mainstream banks can see.

Illustrative Example: Alex (Software Engineer)

Alex is a senior engineer at a major tech company:

Base salary: $120,000
Annual bonus (20% of base): $24,000
Stock vesting annually: $30,000
Project allowance: $8,000
Total annual income: $182,000

At a mainstream bank: Assessed on average tax return ($150k) → borrows $600k-$750k → misses entry into $850k+ market.

With specialist lender: Assessed on documented compensation structure ($182k) → borrows $750k-$900k → can afford the home he can legitimately pay for.

That's $150,000+ in additional borrowing power — the difference between a decent home and the right home.

📋 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.

Key Takeaways

Your income is real. Your bonus, equity, and project allowances are documented and repeating.
Mainstream banks see only base salary or averaged tax returns — specialist lenders see your full compensation.
Getting assessed fairly can unlock $100,000-$200,000+ in additional borrowing power.
Documentation is everything. Bring payslips, contracts, tax returns, and bank statements to prove your income pattern.
Don't settle for a broker who only looks at tax returns. Work with someone who understands engineer compensation structures.