Turning Bonuses, Commissions and Profit Share into Real Borrowing Power

Australian lenders will use bonus, commission and profit share income for home loans and investment lending, but they rarely take it at 100%. They usually look for at least one to two years of history, average the figures, and then apply a “haircut” of 20–50% before running serviceability with a 3% APRA buffer on repayments. How your income is structured and documented can easily swing your borrowing capacity by hundreds of thousands of dollars.

This guide shows high‑income professionals, self‑employed clients and investors exactly how banks treat variable income in Australia — and what to change this week to turn complex pay into clean borrowing power.

1. The short version: how banks actually see variable income

1.1 Base vs variable: two different rule books

For lending, your income is split into:

• Base income – your contracted salary or wages, usually taken at 100% if you’re past probation.
• Variable income – bonuses, commissions, profit share, overtime, RSUs, etc. This is what lenders shade and scrutinise.

Most mainstream lenders treat variable income as less reliable by default, even when you and your employer see it as “normal pay”. Their credit policies are written for worst‑case scenarios, not your best year.

1.2 Typical treatment of bonuses, commissions and profit share

Policies differ, but a common pattern looks like this (indicative only):

• History required: 1–2 years, evidenced on payslips, PAYG income statements, tax returns and/or employer letters.
• Averaging: often the lower of:
  • Last year’s variable income, and
  • The 2‑year average.
• Haircut: lenders may only use 60–80% of that averaged figure for servicing.
• Direction of change:
  • Rising income → some lenders may use the latest year only.
  • Falling income → most will use the lower year, or ignore the income altogether.

So a headline package of $350k that’s $180k base + $170k variable might be treated more like $250–280k for borrowing purposes.

1.3 Fast diagnostic: what’s likely to count this week

Your variable income is more likely to be fully counted (within lender rules) where:

• Paid at least annually, ideally quarterly or monthly.
• Two full years showing consistent or rising levels.
• Clearly itemised on payslips and PAYG income statements, or supported by tax returns.
• You’re in the same role or industry over that period.

It’s less likely to be fully counted where:

• It’s new (less than 12 months) or highly lumpy.
• It depends on one‑off events — big deals, special projects, COVID‑era spikes.
• You’ve recently changed employer, business structure or partnership.

We’ll now break it down by income type and show how to stack the odds in your favour.

Clear documentation of bonus income is the first step to turning it into usable borrowing power.

2. Bonuses: annual, quarterly and sign‑on payments

2.1 Types of bonuses lenders see

Common bonus types for executives and professionals:

• Annual performance bonuses (corporate, banking, professional services)
• Quarterly incentives (medical specialists with hospital KPIs, sales leaders)
• Retention or sign‑on bonuses (front‑loaded for a new role)
• Project or transaction bonuses (M&A, capital markets, major projects)

Lenders put these into two buckets:

1. Regular, recurring bonuses – annual or quarterly; tied to role and company results.
2. One‑off or ad‑hoc bonuses – sign‑on, retention, special projects.

Only the first bucket is usually counted as ongoing income.

2.2 What lenders want to see for bonus income

Most banks will consider bonus income where:

• There’s at least one full bonus cycle, often two years preferred.
• Your bonus appears on:
  • Year‑to‑date payslips, and
  • ATO PAYG income statements or tax returns.
• An employment letter or HR confirmation clarifies the bonus structure for more complex cases.

If you’ve just moved roles, lenders might accept evidence from your former employer plus a new contract showing similar or better bonus potential.

2.3 A worked example: bonus haircut in practice

Assume:

• Base salary: $200,000
• Bonuses:
  • FY22: $80,000
  • FY23: $120,000

A conservative lender might do this:

1. Average bonuses over 2 years: ($80,000 + $120,000) ÷ 2 = $100,000.
2. Apply a 20% haircut: 80% × $100,000 = $80,000 usable variable income.
3. Add to base: $200,000 + $80,000 = $280,000 total income for servicing.

If their broad internal multiple is ~6× income (illustrative only), your borrowing capacity might be assessed around $1.68m, not the $1.92m you’d expect if they took your full $320k.

Another lender might:

• Use only the latest bonus year (if clearly rising), then
• Haircut to 70–80%.

That could turn the usable bonus into $84–96k and lift capacity by a couple of hundred thousand dollars. Policy choice matters.

2.4 Sign‑on and retention bonuses

Most lenders treat sign‑on and retention bonuses as:

• One‑off lump sums, not ongoing income.
• Useful for deposit or debt reduction rather than servicing.

If a sign‑on is paid as a higher base or guaranteed year‑one bonus, there’s more scope to treat it as ongoing — but that usually needs a strong employment contract and sometimes a tailored credit submission.

3. Commissions and incentive pay

3.1 Who this affects

Commission and incentive structures are common for:

• Sales and BD professionals
• Real estate agents and mortgage brokers
• Some medical, dental and allied health roles (percentage of billings)
• Financial markets and trading roles

The headline on-target earnings (OTE) in your contract is not what lenders plug straight into their calculators.

3.2 How lenders usually assess commission income

Typical settings (again, policies vary by lender):

• Minimum history: 12 months; many prefer 24 months.
• Income figure used:
  • Lower of: latest year vs 2‑year average.
  • Some may use only the latest year if clearly stable and increasing.
• Haircut: often 20–40% off that figure.
• Very lumpy earnings: lenders may ignore the highest months or years when averaging.

Here’s a simplified comparison of how two notional lenders might treat the same commission earner.

On a crude 6× income lens, that’s the difference between roughly $1.08m vs $1.39m of borrowing capacity — just from lender policy.

3.3 Dealing with big swings year to year

If your commissions swing hard (e.g. $80k one year, $250k the next):

• Lenders will want to understand why:
  • New territory or promotion?
  • A one‑off mega‑deal?
  • Market or product change?
• A good broker will position the spike as structural, not lucky, where that’s genuinely the case.
• Some lenders might:
  • Use only the latest 12 months if you can show it’s repeatable.
  • Ask for year‑to‑date statements to prove the current year is tracking similarly.

If the spike really was a one‑off, you’re usually better off using it to reduce non‑deductible debts and improve your position that way, rather than pushing for maximum borrowing.

4. Profit share, partnership drawings and distributions

4.1 Why profit‑linked income is treated differently

For partners, directors and practice owners, income may come as:

• Profit share from a partnership agreement
• Dividends or director fees from a company
• Drawings from a medical, legal or accounting practice

Lenders see this as business‑linked income, with more moving parts and more risk. They often want to understand the underlying business health, not just what lands in your personal account.

If this is you, you’re in the world of self‑employed policy, where many of the rules from our guide for high‑income self‑employed professionals apply on top of the variable‑income rules.

4.2 How banks usually assess profit share

Common approaches include:

• Look‑through to financials: lenders want 2 years of business and personal tax returns, plus financial statements.
• Use the lower or average of those two years’ income for servicing, unless there’s a very clear, sustainable growth story. (This aligns with how they treat self‑employed income more broadly.)
• Add‑backs: some non‑cash or discretionary expenses (e.g. depreciation, certain interest) might be added back to show underlying capacity.

However, as noted in earlier guides, aggressive tax minimisation that materially suppresses taxable income can significantly reduce your borrowing capacity — often more than the tax saved.

4.3 Drawings vs taxable income

A very common issue:

• Your drawings or distributions into your personal account might be $500k–$600k.
• Your taxable income (after trust distributions, salary sacrifice, etc.) might show $300k–$350k.

Most mainstream lenders anchor servicing to the taxable income and business profits, not just the cash you draw. Big drawings from a business that isn’t equally profitable are a red flag.

If your structure is complex, it’s worth lining up your documentation path early. Our guide to choosing the right documentation pathway explains when full‑doc vs alt‑doc makes sense and how that affects variable income assessment.

4.4 Partners moving between firms or into equity

If you’re:

• Moving from salaried role into equity partner, or
• Changing partnerships or starting your own practice,

most lenders will:

• Treat the new structure as self‑employed, and
• Want to see 12–24 months of business trading before taking the full profit share.

There are exceptions, especially for established professionals with strong CVs and buy‑in loans at major firms, but expect more scrutiny and potentially lower usable income during the transition.

For many, the strategy is to secure major personal lending (home upgrade, investment purchase, refinance) while still on a clean salaried package, then move into equity with more headroom.

If you’re earlier in your journey, also see our guide for small business owners buying a first home.

5. Policy differences between lenders – and how to use them

5.1 Key variables that change from bank to bank

Even with the same income, borrowing capacity can vary massively. Lenders differ on:

• Minimum history for bonuses/commissions (12 vs 24 months).
• How they average variable income (2‑year average vs latest year).
• Haircut size (using 60% vs 80–90% of variable income).
• Weighting of different income types (e.g. recurring annual bonuses vs highly transactional commissions).
• Credit appetite for certain industries (e.g. medical vs start‑up tech).

They also use different assumptions around living costs (HEM benchmarks) and apply the APRA‑required 3% buffer above the actual interest rate when testing repayments.

5.2 Base‑heavy vs variable‑heavy packages

If your pay is base‑heavy (e.g. 80% base, 20% bonus):

• Most mainstream lenders will assess you similarly.
• Focus is on interest rate, fees, features and policy for things like LVR and LMI.

If your pay is variable‑heavy (40–70% bonuses/commissions/profit share):

• Choice of lender matters far more.
• It’s common to see $200k+ swings in assessed borrowing across lenders.
• Specialist or non‑bank lenders may consider a higher proportion of variable income, at a higher rate.

5.3 When alt‑doc or specialist lending makes sense

For some high‑income professionals, particularly those with complex profit share and trust structures, the cleanest path can be alt‑doc or specialist lending:

• You might prove income via BAS, business bank statements or accountant letters instead of standard payslips.
• Rates are usually 0.5–1.5% higher than full‑doc mainstream loans, but if they let you safely achieve a major goal (home purchase, cash‑out for business), they can be a stepping stone.

Once your structure has bedded down and you have two solid years of lodged tax returns, you can often refinance into sharper full‑doc lending, as we’ve covered in depth in other guides.

For partners and practice owners, lenders look through to business profits, not just personal drawings.

6. Strategy: structuring income and your application

6.1 If you control your structure (partners, directors, practice owners)

If you have real control over how income flows to you, you have levers to pull — but they need planning well before a major application.

Key moves:

• Stabilise your drawings/dividends: aim for predictable monthly or quarterly payments, not erratic large transfers.
• Align taxable income with reality: dial back aggressive tax minimisation in the 1–2 years before a big loan. As noted in our self‑employed guide, this can have more impact than any clever structure.
• Separate personal and business debt: use clear loan splits and avoid mingling personal spending with business finance. This improves how lenders read your position and simplifies tax (see also our refinancing and debt‑structuring insights).
• Plan the timing of big equipment or fit‑out finance: new repayments can reduce home loan capacity because residential lenders often treat them as ongoing commitments.

For a deeper dive into this juggling act, our guide on home loans for high‑income self‑employed professionals is a useful companion read.

6.2 If you’re an employee on a complex package

You can’t rewrite HR policy, but you can still tilt things your way:

• Get a detailed employment letter: spelling out base, target bonus/commission, typical vesting, and your history with the employer.
• Time your application: apply after your bonus has been paid and appears on your income statement, not right before.
• Reduce noise in your bank statements: minimise short‑term debt shuffling and big discretionary spends in the 3–6 months before applying.
• Clear smaller consumer debts: a $30k car loan or $20k in credit card limits often costs more borrowing capacity than you gain from marginally higher variable income being accepted.

Women and single professionals in particular often have strong incomes but conservative borrowing instincts. Our guide for single professional women shows how to turn solid earnings into a well‑structured loan, without overextending.

6.3 Refinancing when income has grown

If your variable income has stepped up and stayed there for a couple of years, there’s a good chance you’ve outgrown your old home loan.

Refinancing can help you:

• Move from a conservative lender to one that recognises more of your bonus/commission.
• Release equity for investment or business growth.
• Consolidate expensive personal debts, provided you don’t re‑rack the cards afterwards.

Our article on when business growth means you’ve outgrown your old home loan walks through the trigger points.

7. A one‑week action plan

You’re busy. Here’s what to do this week if you rely on bonuses, commissions or profit share and want a large loan in the next 6–12 months.

Day 1–2: Get your numbers in one place

Pull together:

• Last 2 years of:
  • PAYG income statements or personal tax returns
  • Group certificates / income statements
  • Bonus / commission breakdowns if available
• Last 6–12 months of payslips.
• For profit share/partnership income:
  • Last 2 years of business financials and tax returns
  • Partnership or shareholder agreements.

Put a simple summary together: base, variable by year, and any context (promotions, role changes, major deals).

Day 3–4: Clean up the easy wins

• Reduce or close unused credit card limits.
• Pay down or restructure small personal loans that are close to finishing.
• Stop applying for new credit (multiple enquiries can hurt your score and complicate applications).
• If you control your structure, start regularising drawings and reduce obvious personal spending through business accounts.

Day 5–7: Reality‑check borrowing capacity

Speak with a broker who understands both complex income and tax. In a good initial conversation you should cover:

• How much of your variable income is likely to be counted today.
• What would change if you:
  • Waited until after your next bonus cycle, or
  • Lodged the next year of tax returns.
• Whether full‑doc, alt‑doc or a specialist lender makes the most sense.
• A realistic price range for buying or investing, in light of the 3% serviceability buffer and your appetite for risk.

If you’re self‑employed and don’t have payslips at all, use this alongside our guide on getting a mortgage without payslips as a combined checklist.

FAQs

How many years of bonus or commission do I need for a home loan?

Most Australian lenders want at least 12 months of bonus or commission history, and many prefer two full years. They will usually average those years and may use the lower figure if income is volatile or falling. A few lenders will use only the latest year where income has clearly increased and is well‑documented.

Do banks count 100% of my bonus or commission income?

Rarely. Lenders typically apply a 20–50% haircut to variable income after averaging it over 1–2 years. For example, they might use only 60–80% of your averaged bonuses or commissions in their servicing calculator. This is to protect against future downturns or exceptional one‑off years inflating your capacity.

Will a big one‑off year of commissions or a huge deal help my borrowing?

It can help if it is part of a structural change (promotion, new territory, consistent pipeline) and the current year is tracking similarly. If it is clearly a one‑off, many lenders will either ignore the spike or average it down heavily. In that case, you may be better off using the cash to reduce non‑deductible debts instead of relying on it for borrowing capacity.

How is profit share or partnership income treated differently from salary?

Profit share and partnership income are usually treated as self‑employed income, even if you pay yourself a salary. Lenders will look through to business financials and tax returns, often over two years, and may use the lower or average income figure. They focus on sustainable business profits and may not fully recognise large personal drawings if they exceed those profits.

Can I get a home loan if most of my income is commission based?

Yes, but lender choice and documentation are critical. You’ll usually need at least one full year, ideally two years, of commission history with the same employer or industry. A good broker will target lenders with more flexible policies on variable income and help present your history as stable and repeatable, not speculative.

Should I wait until after my next bonus is paid before applying?

Often, yes. Applying just after your bonus has been paid and reported makes it easier for lenders to see a clear and complete income picture. That said, if your bonus is trending down or your role is about to change, it can sometimes be better to apply earlier. A tailored assessment is usually worth doing before you lock in timing.

Key takeaways

• Banks do count bonuses, commissions and profit share, but usually at 60–80% of an averaged figure, not 100% of your headline package.
• Two years of stable, well‑documented variable income gives you many more lender options and higher borrowing capacity.
• Profit‑linked income for partners and practice owners is assessed through a self‑employed lens, with business performance under the microscope.
• Lender choice can easily swing capacity by hundreds of thousands of dollars for variable‑heavy earners.
• The 6–12 months before a major loan is when you should stabilise income flows, clean up debts and reduce credit noise.

If you’d like a decision‑grade view of how much of your package a bank will actually use — and what to tweak before applying — it’s worth having your numbers reviewed by someone who lives at the intersection of lending policy and tax law.

General advice only.