Compare ordered, completed and already-invoiced quantities

Start with the fictional example or checked records

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Original fictional calculation · not a customer result

Worked example: the difference to inspect

In the fictional example, completed-but-unbilled quantity is 9−7=2. Ordered-but-unbilled quantity is 12−7=5. A proposal for 3 is one unit above the completed balance but within the ordered balance. Which model is appropriate comes from the agreement; the checker does not choose it.

12

9

7

3

Download fictional input · Download fictional result

Method and explicit boundaries

Keep one consistent unit and contract scope. Compute max(completed−previously invoiced,0) and max(ordered−previously invoiced,0). Compare the proposed quantity with each balance. Show existing contradictions separately rather than silently allowing a negative balance. Quantities allow three decimals and use integer thousandths.

This is not automatic inventory, project management or recurring billing. A visit, item, hour and square metre cannot be mixed in one review. Payments received do not reduce previously invoiced units. Credits, returns, deposits, milestones, variations and prepaid rights need reconciled source records and agreement-specific review first. An overage flag does not determine whether money is legally owed.

Choose the existing template after resolving the result

Choose the verified contractual basis, resolve any contradictions, and manually enter only the approved units and price in ABN Invoice. Save the service or delivery evidence with the original agreement, then check the actual preview before exporting.

• Basic/free invoice template
• Invoice sample Australia
• Partially completed job guide

Start without signing in; free use has branding and usage limits. Review any optional membership against real repeat-use needs. Downloading a worksheet is not a successful invoice export.

Checks for different questions

• Check quantities, unit prices and the copied subtotal
• Reconcile entered GST and mixed price bases on a tax invoice
• Check overlapping service times before invoicing a job

All worked examples and the download pack

Source and review date

Australian Government guidance explains that fee calculations and payment timing belong in the agreement. The two balance models here are explicit original assumptions, not a rule that every completed or ordered unit is automatically billable.

Read the official/primary source

Reviewed 17 October 2026. Exact Australian long-tail volume, indexing and paid outcomes remain unknown; a vendor document or deployment does not establish them.