01
What creates how to send an invoice?
Sending begins only after the outgoing invoice has passed the required review and received its final number and date. Confirm the billing contact, copy rules, channel, language, purchase-order reference and any portal submission requirement before dispatch.
Start with the underlying commercial or statutory event rather than the label placed on a document or report. Record the parties, date, period, amount basis, source and responsible owner so another reviewer can reproduce why the state exists.
- Name the event and effective date.
- Retain the source and calculation.
- Identify the accountable owner.
- Keep later changes traceable.
Put this into practice with how to create an invoice.
02
How the working method fits together
Protect the final version from accidental replacement, write a concise message, use the agreed channel, verify attachment or link access and record when and where it was sent. If delivery fails, correct the contact or channel without creating a duplicate invoice.
Work from source evidence to classification, calculation, review and final record in that order. A familiar label or precise number does not correct a missing source, wrong period, unsupported assumption or unauthorised change.
- Collect the source records.
- Confirm scope and classification.
- Calculate with visible assumptions.
- Review and retain the result.
Put this into practice with what is an invoice.
03
What to keep distinct
Delivery evidence proves that the invoice was sent or made available; it does not prove that the recipient accepted the charge or paid it. A read receipt, portal upload, remittance advice and settled payment are separate states.
Related records can share amounts while proving different things. State whether a value represents an authorised order, delivered work, outgoing invoice, customer balance, payment instruction, verified cash event, tax report or ledger conclusion before using it in another process.
- Intent is not delivery.
- An invoice is not cash.
- A payment notice is not settlement.
- Billing evidence is not a ledger conclusion.
Put this into practice with online invoicing.
04
Worked example
The example demonstrates the sequence and arithmetic, not a universal legal, tax or accounting treatment. Replace every assumption with the facts and current rules that apply to the actual transaction.
A reviewer should be able to move from the final number back to each source record without reconstructing the decision from email or memory.
- Invoice: INV-1042
- Amount: $5,000
- Due date: 10 September 2026
- Delivery: approved billing contact plus portal reference
Put this into practice with payment reminders.
05
Review before relying on the result
Check the parties, direction, relevant period, source completeness, classification, currency, arithmetic, status and approval. Where a law, filing or accounting policy controls the outcome, use the current official source or the responsible qualified reviewer.
Correct the record through the appropriate controlled process. Do not silently overwrite an issued document, change a historical status without explanation or present an illustrative value as though it were verified evidence.
- Sending a draft
- Wrong recipient or attachment
- Missing amount or due date in message
- No delivery record or follow-up owner
Put this into practice with invoice template.
Step by step
Use the sequence, then check the exceptions.
- 01
Verify the final issued invoice, recipient and agreed channel.
- 02
Write a clear subject and message with number, amount, currency and due date.
- 03
Attach or link the correct file and test access before sending.
- 04
Retain delivery evidence and assign the next follow-up date.
Continue in context