ABN Invoice

Repeat client billing · manual review

Per-entry versus total time rounding

Several short jobs can produce a larger invoice when each is rounded up separately. Compare rounding every entry with rounding the combined time once, using an explicitly entered billing increment.

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Start the invoice tool without signing in. Free output has branding and usage limits. This calculator is separate from recurring sending, collections, payroll and accounting. Review the current tool before choosing any paid plan for repeat use.

Review inputs and results

The prefilled values are fictional examples. Replace them with verified data, without customer names, contact or payment details. Inputs stay in this page; review again after changing them. No GST is automatically added.

Select Review calculation to inspect the entered values.

Fictional worked example · not a customer case

Check one specific result

Three fictional eight-minute tasks total 24 minutes. Rounding each to 15 minutes produces 45 minutes and AUD90.00 at AUD120/hour. Rounding the combined time once produces 30 minutes and AUD60.00. The AUD30.00 difference is a method difference.

Method and boundaries

For a positive duration, round up by multiplying the entered increment by the ceiling of minutes divided by that increment. Apply this once to each row and separately to the overall duration. Money is rounded only after the duration calculation.

This is round-up only, not nearest rounding or a universal invoicing rule. Keep entries from different clients or agreements separate. Do not round payroll using this tool, and do not infer permission to round from the calculated result.

From a reviewed number to an invoice

  1. Confirm the actual customer, scope, period and approved charging basis.
  2. Match each row to source job records; fictional examples are not customer data.
  3. Download a manual review record if useful; it does not replace original invoices or accounting records.
  4. Manually enter appropriate AUD line items in the tool, check the preview, then export the PDF or image yourself.
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Questions before invoicing

Does this result create or change an invoice?

No. This page calculates a manual review only. Nothing is sent to an account, saved to an invoice draft or automatically copied into ABN Invoice. Review the agreement and enter an approved customer document yourself.

What exactly does this review assume?

This is round-up only, not nearest rounding or a universal invoicing rule. Keep entries from different clients or agreements separate. Do not round payroll using this tool, and do not infer permission to round from the calculated result.

Related reviews

Sources and review date

Sources establish workflow context, not endorsement of ABN Invoice, Australian search volume or paid results. Community reports are unverified user accounts.

Read the workflow source

Source and fictional arithmetic reviewed 16 October 2026. Invoice-use or payment outcomes from this page have not been measured.