Serviceability
Last reviewed 13 June 2026 by Nick Lim, finance broker (FBAA).
Serviceability is a lender's assessment of whether a borrower can afford a loan's repayments from their income after living expenses, existing debts and an interest-rate buffer. It is the core test behind almost every credit decision, from a One Doc Home Loan to a Working Capital Loan. Lenders measure it using verified income, benchmark living costs, your current commitments and an assessment rate set above the actual rate. Self-employed borrowers are often assessed on different evidence, which is why Alt Doc Home Loans and Self-Employed Home Loans exist. Business owners working through how serviceability affects their borrowing can start at our Business Owners Finance Hub.
Why Serviceability Matters
Serviceability decides how much you can borrow and whether an application is approved at all. A strong position widens your options and lowers your cost of capital.
- Built from verified income minus living expenses and existing repayments
- Tested at an assessment rate set above the actual rate, as a buffer
- Existing debts, measured partly through your DTI, reduce capacity
- Self-employed income is assessed on different evidence than PAYG
- A clean, well-documented file improves the serviceability read
Serviceability sits behind most lending products, including Business Loans and Low Doc Asset Finance. It is closely related to Borrowing Capacity and Loan Servicing.
Common Features of a Serviceability Assessment
- Income verified through payslips, BAS, tax returns or accountant confirmation
- Living expenses benchmarked against a standard measure
- An interest-rate buffer applied to test future repayment ability
- Existing commitments and credit limits counted against capacity
- Different evidence accepted for self-employed and company borrowers
Official reference: apra.gov.au