You now know the five lines of the sum and where lenders pull them apart. Here are the five case studies side by side, from the narrowest spread to the widest.
| Borrower | Lowest | Highest | Gap | Where the gap comes from |
|---|---|---|---|---|
| Single, $115k salary, $40k of unused card limits | $392k | $461k | $69k | Card limits; test rate |
| Nurse with regular overtime | $608k | $757k | $149k | Overtime shading; essential-worker policy; test rate |
| Sole trader with rising profit | $704k | $940k | $236k | Which year's income |
| Couple, three children, family payments | $464k | $855k | $391k | Living expenses; family payments |
| Couple buying a third investment property | $171k | $1.10M | $930k | Existing loans; rent; tax effects |
The pattern is the point. A simple PAYG client with a clean balance sheet sees a modest spread, and lender choice is mostly about rate and service. The more the client departs from a base salary and a single home loan, the more each lender's policy matters, until on an investor deal the choice of lender can be the whole deal.
Reading a new scenario
Before you run any numbers, look at the client and predict where the gap will come from. Tick what applies and you get a short list of what to check.
Where will the gap come from?
Why the highest number isn't always the answer
- Policy comes first. A lender's calculator may happily count income its credit policy won't accept: a job still on probation, a visa type, a short trading history.
- Price. The most generous calculators often belong to lenders with higher rates or fees. Compare what the client will actually pay.
- Deposit and insurance. Loan-to-value limits and lenders mortgage insurance can matter more than an extra $50,000 of capacity.
- The client's interests. Your duty is to recommend a loan that suits the client, not the largest one available. Capacity tells you what's possible; the client's goals and comfort tell you what's right.
Check your understanding
0 of 3 answered1. Which client is likely to see the widest spread between lenders?
2. A lender's calculator gives the highest figure. What should you check before recommending it?
3. A client's case has overtime, two credit cards and three children. Where would you look first for the gap?