The cash position after settlement can be as important as the purchase price.
Business Debt Service Coverage Calculator
Estimate whether current operating cash flow provides a comfortable buffer above existing and proposed debt repayments.
Debt service coverage compares cash available for repayments with the repayments themselves. It is a useful planning concept, but lenders calculate serviceability using their own policies, adjustments and information.

Consider interest, fees, flexibility, security, term and final obligations.
Stress test the facility against a weaker trading period.
Tax, GST and lender suitability depend on the individual circumstances.
Start with the business outcome.
Debt service coverage compares cash available for repayments with the repayments themselves. It is a useful planning concept, but lenders calculate serviceability using their own policies, adjustments and information.
General information only: The material and tools do not constitute a quote, approval, tax advice or a recommendation to borrow. Credit is subject to lender assessment, eligibility, terms, fees and security. Speak with an accountant about tax and GST consequences.
Potential advantages and trade-offs.
Why a business may consider finance
- Shows the monthly repayment buffer clearly
- Encourages stress testing before borrowing
- Combines existing and proposed commitments
- Helps owners distinguish approval from affordability
What the business gives up
- Cash flow can fluctuate materially month to month
- The calculation may exclude tax, drawings and capex
- Lender calculations may be different
- A strong ratio does not remove security or credit risks
Model the decision.
Adjust the assumptions to see how the structure changes liquidity, repayment pressure or estimated cost. The output is educational and intentionally conservative.
This is not a lender serviceability model. Use normalised cash flow and allow separately for tax, owner drawings, capex and seasonality.
Put the structure into context.
A business producing $45,000 of monthly operating cash before debt and carrying $18,000 of total repayments has an estimated coverage ratio of 2.5 times before other adjustments.
When cash or finance may fit.
A blended structure can also be considered—for example, contributing a deposit from surplus cash while financing the long-lived asset and retaining an operating buffer.
Frequently asked questions.
What is a good coverage ratio?
There is no universal number because lender policies and business risk differ.
Why stress the cash flow?
A facility should remain manageable during a weaker period, not only at current performance.
Is this the same as lender serviceability?
No. It is a simple educational estimate.
Official Australian information.
These sources provide general government and regulatory information. They do not replace individual credit, legal or accounting advice.