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Free Calculator · Updated 18 May 2026

Upfront & Trail Commission Calculator, Australia

Model net upfront commission per loan, lifetime trail, and book value across Big-4 and non-bank lender schedules, after aggregator fee, broker split, and GST.

Planning estimate

Indicative only, verify exact commission rates against your aggregator's current schedule and the lender's standard terms before relying on figures for finance or sale events.

$

Year-1 net upfront income $160,550 · steady-state Year-5 gross $313,832

Happy with the commission? The next question is what it costs to track it. Compare the AUD plans on the pricing page.

How To Use

Four steps to a defensible net-per-loan estimate

  1. Step 1

    Pick the lender profile

    Big-4 vs non-bank prime vs non-bank specialist materially shifts the upfront/trail mix and the expected book life. Pick the closest profile then fine-tune the exact rates.

  2. Step 2

    Confirm rates with your aggregator

    Aggregator commission schedules move with lender campaigns. Always cross-check the calculator's preset against your current schedule before relying on a quote.

  3. Step 3

    Set aggregator fee + broker split honestly

    Aggregator fees range 3% to 8% of commission; broker splits in partnerships or PAYG structures vary. The split affects lifetime book value more than upfront, model both.

  4. Step 4

    Use the lifetime estimate cautiously

    Lifetime trail assumes geometric decay. Owner-occupied books last longer than investment books; non-bank books churn faster. Treat the number as a planning bound, not a sale-event valuation.

Practitioner Notes

Four things that move per-loan economics

Clawback risk is real

A loan discharged in year 1 takes back 100% of upfront, turning a profitable settlement into a write-off. Quote conservative net per loan in financial projections that ignore this.

NCCP BID disclosure

Best Interests Duty requires you to document why you recommended the product, not why the commission was paid. Run the calc, note the commission, and write your suitability assessment around the borrower's needs.

Trail book valuation

Industry multiples are 1.5 to 2.5 times annual run-rate for owner-occupied; lower for older or specialist-lender books. Book this in spreadsheet for any partner equity, succession, or finance event.

Aggregator switching

Read the run-off clause before signing. Owning your own ACL preserves the strongest negotiating position, credit reps under aggregator ACLs have less leverage on book portability.

Frequently Asked Questions

What are typical AU upfront and trail commission rates?

Big-4 owner-occupied loans typically pay 0.55% to 0.65% upfront and 0.15% to 0.20% p.a. trail. Big-4 investment loans pay marginally higher upfront (0.60% to 0.70%). Non-bank prime lenders offer 0.65% to 0.75% upfront with similar trail. Non-bank specialist (low-doc, near-prime) can pay 0.85% to 1.00% upfront but with shorter book life. All figures are approximate and change with lender campaigns, confirm with your aggregator's commission schedule.

What is commission clawback and when does it apply?

Clawback is the lender's right to recover paid-out upfront commission if the loan is discharged early, typically full clawback in year 1, 50% in year 2, nothing thereafter (varies by lender). Refinances, sales, and broker-led repricing all trigger clawback. The risk falls on the broker, not the borrower. NCCP Best Interests Duty doesn't override commercial clawback terms, but it does mean you can't refuse to act in the client's interests to preserve commission.

Is GST charged on broker commission?

Most lender commission schedules are quoted GST-inclusive, with the lender remitting GST on the broker's behalf as the principal under recipient-created tax invoice (RCTI) arrangements. If you bill the borrower a fee directly (rare in residential, more common in commercial broking), GST applies normally and you issue your own invoice. Confirm with your aggregator, RCTI arrangements vary.

How do I value my trail book if I want to sell or borrow against it?

Industry rule-of-thumb is 1.5 to 2.5 times annual run-rate trail for owner-occupied loan books, lower for older books closer to run-off. Specialist lender books with shorter life trade at lower multiples. Major bank books trade higher because of stability. The calculator's lifetime trail estimate assumes a simple geometric decay, for a sale or finance event, get a formal valuation that models actual book age, lender mix, and refinance risk.

What happens to my trail book when I switch aggregators?

Depends entirely on your existing aggregator's terms. Some allow full trail to move (with re-credentialling), others retain trail on the existing book and pay you a reduced rate or nothing. Holding your own Australian Credit Licence gives you the strongest negotiating position, credit reps under an aggregator's ACL have less leverage. Read the run-off clause before signing your next aggregator agreement.

What is the conflicted remuneration ban and does it affect this commission?

The Future of Financial Advice (FOFA) conflicted remuneration ban applies to financial advice, not credit assistance, so mortgage broker commission from lenders is generally outside that regime. However, NCCP Best Interests Duty (since Jan 2021) overrides commission-driven recommendations: brokers must act in the borrower's best interests even when a higher-commission product exists. Document why the chosen product is in the client's interests, not why the commission was paid.

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Reviewed by Bishal Shrestha

About the author

Bishal Shrestha, Founder of OneBookPlus

Bishal Shrestha

Founder & CEO, OneBookPlus

Bishal spent a decade running digital projects for Australian small businesses before founding OneBookPlus. He writes and maintains these pages, and publishes what OneBookPlus does not do alongside what it does.

A decade running digital projectsPersonal site: bishal.com.auMelbourne, Australia
Read the founder bio

How this page was researched

Every figure above is either linked to the body that published it or recomputable from the numbers shown on the page. Plan prices come from the OneBookPlus price registry, so the page and the checkout cannot disagree. Everything said about OneBookPlus describes what the product does today, and the page says so where it does not do something.