Internal costing and customer pricing differ
A contractor records ten hours at an internal reference of A$95 per hour, giving A$950. The customer has separately agreed A$1,000 for three completed items. The checker shows the A$50 difference for review and allocates the agreed A$1,000 as A$333.34, A$333.33 and A$333.33. It does not replace an hourly agreement with item pricing.
Why one item can differ by a cent
A$1,000 divided equally into three two-decimal prices cannot produce identical unit prices and preserve the exact total. Remaining cents go to the first items. Confirm this presentation with the customer if identical unit prices are required; use a different agreed line structure rather than hiding a rounding difference. Each allocated row has quantity one.
Avoid charging the same work twice
Use the internal hours as your own reference and the agreed customer-facing item lines as the billing presentation. Do not add the same hours again on top of those items. Describe the deliverables accurately and compare the final preview subtotal with the agreed amount. The helper calculates a pre-tax subtotal; any GST treatment remains a separate review.
Keep a review record
Run the check again whenever an input changes. Invalid or incomplete input clears the previous live result and disables download, so an old answer is not presented as current. Downloads contain the check table only; they are not a tax invoice, payment receipt or successful invoice export. They do not update drafts, history, login or payment status.
business.gov.au: invoice descriptions, quantities and prices · Reference for the underlying recordkeeping or calculation concept; not an endorsement of this helper.