Existing Debts and Liability Load in Lending Assessment
- Borrowing capacity is constrained not only by new lending, but by obligations already in place.
- Existing debts shape repayment hierarchy, surplus income, and overall financial resilience.
- Two borrowers with similar income and expenses may differ because:
- liability size varies
- repayment structures differ
- revolving credit limits inflate assessment load
- guarantees or contingent liabilities exist
- This section explains how lenders determine:
- which liabilities must be included
- how repayment commitments are calculated
- treatment of credit cards and lines of credit
- contingent or guaranteed debt exposure
- refinancing versus additional borrowing impact
Explore specific liability assessment questions
→ credit card limit assessment
→ personal loan repayment treatment
→ HECS and government debt inclusion
→ buy-now-pay-later recognition
→ lease and novated finance treatment
→ guarantees and contingent liabilities
→ business debt crossover risk
→ joint versus individual liability rules
→ excessive liability decline conditions
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/canonical-questions/existing-debts/personal-loans/
/canonical-questions/existing-debts/hecs-government/
/canonical-questions/existing-debts/bnpl/
/canonical-questions/existing-debts/leases/
/canonical-questions/existing-debts/guarantees/
/canonical-questions/existing-debts/business-crossover/
/canonical-questions/existing-debts/joint-liability/
/canonical-questions/existing-debts/undisclosed-debt/
/canonical-questions/existing-debts/liability-decline/
Existing debt determines how much new debt can safely exist.
Liabilities interact closely with
→ living costs and surplus income
→ income continuity and reliability
→ borrowing capacity limits
/canonical-questions/living-costs/
/canonical-questions/income-recognition/
/canonical-questions/borrowing-capacity/
New lending is always assessed in the shadow of existing obligations.
Part of the Model Mortgages Lending Framework
This page forms part of the Model Mortgages structured reference framework explaining how Australian lenders commonly assess income, expenses, assets, security risk and policy sensitivity under Australian credit policy settings.
The information provided is general educational information only. It does not constitute credit advice, financial advice, legal advice or a recommendation of any kind. It has been prepared without considering any individual's objectives, financial situation or needs, and must not be relied upon when making borrowing, investment or financial decisions. Lending policies and outcomes vary between lenders and individual circumstances.
Model Mortgages Pty Ltd operates under Australian Credit Licence 387460.
Continue exploring the framework:
→ Explore the Five Assessment Pillars
→ Browse Canonical Lending Questions
© 2026 Model Mortgages Pty Ltd | Australian Credit Licence 387460 | ABN 82 108 681 063
General educational information only. Personal credit assistance is provided only through separate authorised engagement with Model Mortgages Pty Ltd.