Construction Loan
Calculator
Track your construction stages, calculate when your cash runs out, and see exactly when your interest-only loan repayments will begin.
1. Loan & Cost Details
2. Builder Contract Stages
Adjust the percentages to match your specific building contract.
| Stage Name | % | Invoice |
|---|---|---|
| Deposit (Paid upfront) | % | $20,000 |
| Base / Slab | % | $60,000 |
| Frame | % | $80,000 |
| Lock-up | % | $80,000 |
| Fixing | % | $120,000 |
| Practical Completion | % | $40,000 |
| Total | 100% | $400,000 |
3. Drawdown Schedule
See exactly when your cash runs out and the loan kicks in.
Deposit (Paid upfront)
$20,000Base / Slab
$60,000Frame
$80,000Lock-up
$80,000Fixing
$120,000Practical Completion
$40,000What happens next?
Once construction is finished and the loan is fully drawn to $320,000, the interest-only period typically ends. Your loan will convert to a standard Principal & Interest (P&I) repayment over the remaining loan term.
* Disclaimer: This calculator provides an estimate only. Post-construction repayment assumes the final loan amount is amortized over a 30-year term and does not include land loans, existing debts, or lender fees.
Disclaimer: This calculator provides an estimate only based on the figures you input. It does not constitute a quote, loan approval, or financial advice. Interest rates and loan terms are subject to change.
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