Can you trace every dollar in the disputed amount?

The argument starts with one large number

Imagine a builder deducts a round amount for “site costs”. You answer with a different total for unpaid variations. Neither figure explains which events or documents sit behind it. The conversation keeps returning to whether the number feels fair.

Break your own figure into identifiable items before trying to assess the other side's. A schedule is a working explanation of the claim, not a declaration that every line is legally recoverable.

Give each item a clear description

Use a separate line for each event or charge, with the relevant job area and date. Identify the invoice, instruction or other record relied on. Explain whether the item is an unpaid contract amount, an additional charge or a claimed loss.

Avoid labels such as “all delays” where several different events are involved. A person reading the schedule should be able to ask a precise question about one line without reopening the whole account.

Show the calculation once

Write the quantity, rate and calculation beside the amount. Keep tax treatment consistent and ask your accountant to check uncertainty. Do not add the same supplier charge both as a direct expense and inside another bundled figure.

business.gov.au identifies expense and bank records as business records to retain. Link those records to the calculation where they support it, rather than attaching a large unsorted folder and expecting the reader to find them.

Source: business.gov.au: Record keeping

Separate known costs from estimates

A paid invoice and an estimate for future repair work are different. Label the status, explain the basis and record when an estimate was prepared. Update the working total when an estimate is replaced by an actual cost.

Keep the earlier version so you can explain the change. A lower figure after checking is a correction worth making, not a reason to hide the calculation that produced the original request.

Record the response to each line

Add columns for the other party's position and the next question. It may accept the quantity but reject the rate, or accept the work but dispute who authorised it. Those are different problems.

Keep undisputed invoices visible separately. Do not describe an unagreed deduction or proposed compromise as an accepted account adjustment. Ask an adviser how any settlement wording affects the remaining claim.

Use the schedule to focus the discussion

Choose the items that need a document, calculation check or professional assessment. Assign those tasks before another general argument over the total.

If you ask CRP to help with the dispute, provide the schedule and the records named in it. Use Report a Dispute below. Explain any approaching formal deadline separately; completing a spreadsheet should not hold up urgent advice.