Buying

How much can I borrow for a home loan?

Understand the main inputs behind borrowing power before using a calculator or speaking with a broker.

Updated: 29 July 2026
Read time: 7 min read
Reviewed by: emoney broker team

Key checks before you decide

Reviewed by emoney broker team. Updated 29 July 2026. Sources are listed below.

Check income, expenses, debts, credit limits, dependants, deposit, and buying costs before trusting an estimate.
Compare the calculator number with repayment comfort at more than one interest-rate setting.
Ask which income or debt assumptions a lender may treat differently from the calculator.
Prepare documents before pre-approval so the borrowing range can be checked properly.

In this guide7 sections

Treat borrowing power as a range, not a promise Understand why lenders can give different answers Check repayment comfort before the maximum number Use the calculator to find the assumptions Prepare before pre-approval Ask what could reduce the number Keep the borrowing number connected to the buying plan

Treat borrowing power as a range, not a promise

Borrowing power is an estimate of how much a lender may be prepared to lend after assessing income, expenses, existing debts, deposit, property type, loan term, and lender policy. It is useful for planning, but it is not final approval.

The estimate is useful because it gives buyers a starting range before inspections, agent conversations, and contract decisions become serious. It should still be treated as a planning number, because the lender view can change once documents, credit conduct, living expenses, deposit source, and property details are checked.

A useful borrowing estimate shows which inputs move the number. It should produce a range that can be tested against lender policy, repayment comfort, upfront costs and the buyer's plans, not encourage the largest possible loan.

If a calculator shows a number that feels too high or too low, that is a prompt for a broker conversation. The useful question is which assumptions are driving the result and what evidence would be needed before a lender assessment.

Income for each borrower and how stable it is.
Living expenses, dependants, rent, and regular commitments.
Credit-card limits, personal loans, car loans, HELP debt, and buy now pay later accounts.
Deposit, savings history, property price range, and expected buying costs.

Understand why lenders can give different answers

Two lenders can assess the same borrower differently. Accepted income, expense benchmarks, credit limits, policy buffers, loan term, property type, and debt treatment can all change the lender view.

This is why borrowing estimates can vary between calculators, banks, and brokers. One lender may take a cautious view of overtime or bonus income. Another may need a longer history for casual work, rental income, commission, self-employed income, or a recently changed job.

Debt treatment can also move the number. A credit card with a high unused limit may reduce assessed capacity even if the balance is low. A car loan, personal loan, HELP debt, lease, or buy now pay later account can change the assessment because the lender is checking whether the proposed mortgage remains affordable beside existing commitments.

The property and loan settings matter as well. Loan term, repayment type, deposit, LVR, loan purpose, property type, and whether lender's mortgage insurance is involved can all affect which lenders may consider the application. That makes the lender answer more specific than a generic calculator.

Overtime, bonus, commission, casual, rental, and self-employed income may be treated differently.
Unused credit-card limits can still reduce assessed capacity.
Some debts are assessed on limits rather than current balance.
A lender may need a stronger explanation when income is variable or recently changed.

Watch out

Check repayment comfort before the maximum number

The highest loan estimate is not always the most useful number. Test repayments at a few interest rates and keep room for strata, rates, insurance, repairs, moving costs, and normal life changes.

Borrowing capacity and repayment comfort are related, but they are not the same thing. A lender assessment may say a number is possible under its rules, while the household budget may feel tight once groceries, transport, childcare, insurance, subscriptions, maintenance, and savings goals are included.

First-home buyers moving from rent into ownership should allow for council rates, strata, water, insurance, repairs, furniture, moving costs and a cash buffer. Those costs may sit outside a borrowing calculator, but they affect how the loan feels after settlement.

A practical test is to model repayments at the estimated loan amount and then at one or two higher interest-rate settings. If the plan only works at the lowest rate or with no spare room, the buyer may need a smaller purchase range, a larger deposit, fewer debts, or more time before pre-approval.

Run repayments at the rate you expect and at a higher rate.
Leave room for ownership costs beyond the loan repayment.
Check whether a smaller loan creates a calmer purchase range.
Avoid making offers just because a calculator produced a large number.

Example

Use the calculator to find the assumptions

Treat the borrowing estimate as a draft that reveals what needs checking next, including income, debts, expenses and loan settings that depend on lender policy.

A calculator can help buyers see the relationship between income, expenses, dependants, debts, deposit, rate, and loan term. It is less useful when the inputs are guessed quickly or when inconvenient commitments are left out to make the number look better.

Use the first result as a baseline, then run a few sensible variations. Include all credit limits, reduce income if it is variable, test a shorter loan term if that is realistic, and compare repayments at different rates. This turns the calculator into a list of questions for a broker rather than a single number to rely on.

Save the assumptions you used. If the broker can see the income, debts, expenses, deposit, purchase price, and repayment settings behind the estimate, the conversation can move faster to the areas that need lender policy checking.

Run the estimate with all credit limits included.
Try a conservative income scenario if your income varies.
Compare a 25-year and 30-year term if relevant.
Save the assumptions you used before speaking with a broker.

Broker note

Prepare before pre-approval

If the estimate looks workable, the next step is usually document preparation and a pre-approval conversation. The lender or broker will need to verify the details before a purchase budget is relied on.

Pre-approval is stronger when the borrowing range is backed by documents and clear assumptions. That usually means recent income evidence, bank statements, savings history, liability details, deposit source, and any explanation for income or credit issues that could affect assessment.

The preparation does not have to be perfect before the first broker conversation. It does need to be honest enough for the broker to see whether the estimate is broadly realistic, which lender policies are worth checking, and whether a buyer should fix something before making offers.

For buyers with gifts, grants, schemes, low deposits, self-employed income, casual income, recent job changes, or multiple debts, this step matters even more. The borrowing number may depend on details that a simple calculator cannot verify.

Recent payslips, tax documents, or business records.
Bank statements, savings history, liabilities, and credit limits.
Deposit source, gifts, grants, or government support details.
Any expected property type, suburb range, or contract timing.

Next step

Want a broker to check this against your situation?

Share the loan goal, timing and a few key details. An emoney broker can then pick up the enquiry with the relevant context.Check borrowing capacity

Broker note

Ask what could reduce the number

Review the parts of the file that may reduce assessed capacity before becoming committed to a property. Variable income, changing debts and low-deposit applications often need closer checking.

The most useful borrowing-power conversation is often about what is holding the number back. It might be a credit-card limit, a car loan, a personal loan, short business history, irregular income, recent missed repayments, high expenses, or a deposit structure that adds LMI or scheme conditions.

Sometimes the next step is not to apply immediately. It may be to reduce a limit, gather more income history, wait for a lodged tax return, build savings evidence, check a scheme rule, or test a smaller property range. That does not mean the plan has failed. It means the buyer has a clearer path before a lender sees the file.

Ask for the trade-offs plainly. If clearing one debt changes the estimate, what does that do to cash available for deposit and buying costs? If waiting improves income evidence, does the property search need to pause? If a lower price range is calmer, what does that mean for suburbs and property type?

Which debts or limits are hurting capacity most?
Which income types need extra history?
Would clearing or reducing a commitment change the lender view?
Does the deposit plan create LMI, scheme, or valuation issues?

Keep the borrowing number connected to the buying plan

A borrowing estimate only becomes useful when it connects to the full buying plan: deposit, buying costs, repayment comfort, property type, contract timing, documents, and the buyer's next step.

A buyer may be able to borrow one amount in theory but still need a different plan once upfront costs are included. Transfer duty, conveyancing, inspections, lender fees, government charges, insurance, moving costs, and a cash buffer can all change the purchase range.

The property type can also matter. Apartments, regional properties, unusual titles, investment properties, and high-density postcodes may involve extra lender checks or valuation questions. A borrowing estimate that ignores property context can feel precise while still being incomplete.

Use the borrowing-power number as one part of the decision. Combine it with an upfront cost estimate, a repayment estimate, and a document check. That gives the broker a clearer handoff and gives the buyer a calmer range before they make offers.

Check borrowing power beside cash to complete.
Test repayments before committing to a purchase range.
Ask whether the property type could affect lender policy.
Keep the next step practical: prepare documents, narrow the range, or book a broker review.

Calculator next step

Borrowing power calculator

Estimate a practical borrowing range before narrowing a property search or pre-approval conversation.

Best for: Early budget setting before a buyer gets attached to a price range.
What it calculates: A rough borrowing range from income, expenses, debts, dependants, loan purpose, term, and rate assumptions.

A broker still needs to test income treatment, credit limits, deposit, property type, documents, and lender policy.

Open Borrowing power

Sources used

ASIC MoneySmart buying a house
ASIC MoneySmartofficial sourceChecked 29 July 2026
ASIC MoneySmart mortgage calculator
ASIC MoneySmartofficial sourceChecked 29 July 2026
ASIC MoneySmart choosing a home loan
ASIC MoneySmartofficial sourceChecked 29 July 2026
ASIC MoneySmart using a mortgage broker
ASIC MoneySmartofficial sourceChecked 29 July 2026
ASIC responsible lending obligations
ASICofficial sourceChecked 29 July 2026

General information only

This guide is general information and does not take into account your objectives, financial situation, or needs. A broker can review your circumstances before any recommendation.

Next step

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