What's the difference between an invoice and a statement of account?

An invoice is a request for payment for one specific job or delivery. A statement of account summarises all of a client's invoices over a period — what's been paid, what's outstanding, and how overdue each unpaid amount is. You send invoices continuously; a statement is a periodic summary of all of them together.

What is an aging breakdown?

An aging breakdown groups outstanding amounts by how overdue they are — typically current, 1-30 days, 31-60 days, 61-90 days, and 90+ days overdue. It shows a client, at a glance, which of their unpaid invoices need urgent attention versus which just became due.

When should I start sending statements instead of just invoices?

Once you have a recurring client with more than one or two invoices open at a time. Chasing each invoice individually gets confusing for both sides past that point — a single statement with a running total is clearer for everyone and harder for a client to dispute.

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Invoices & getting paid

How to send a client statement of account in South Africa

Zuvo Team1 October 20265 min read

Short answer: a statement of account lists every invoice a client has open with you over a period, grouped by how overdue each one is, ending in a single total due. It's the right tool once "just resend the invoice" stops being clear enough — which is sooner than most small businesses think.

Why one invoice at a time stops working

Sending a single invoice is simple. Sending the third reminder about invoice #0041 while invoice #0047 has also just become due, and the client swears they already paid #0038, is where it stops being simple. Past two or three open invoices with the same client, individual chasing creates exactly the kind of confusion that delays payment further — nobody, including you, can say with confidence what's actually still owed without checking.

What a proper statement actually shows

A statement of account isn't just a list — it's organised to make the real picture obvious at a glance:

Every invoice issued in the period, with its number, date, due date and status.
An aging breakdown — current, 1-30 days overdue, 31-60, 61-90, and 90+ — so it's immediately clear which amounts are urgent and which just became due.
A single total due, excluding anything already paid, so there's one number to agree on instead of several.

This format is standard practice everywhere from a corner hardware supplier to a law firm's billing department, precisely because it removes ambiguity. A client's own bookkeeper will generally recognise the format immediately and act on it faster than a scattered run of individual invoice reminders.

A worked example

Say a client has three invoices open: one paid two weeks ago, one 10 days overdue for R1,850, and one due today for R5,865. A statement for the period would show:

Thabo's Plumbing & Maintenance

Statement period: 1–30 September 2026

Statement of Account

Prepared: 1 October 2026

Invoice	Date	Due	Status	Amount
INV-0038	5 Sep	19 Sep	Paid	R2,400.00
INV-0041	18 Sep	21 Sep	Overdue	R1,850.00
INV-0047	1 Oct	1 Oct	Due today	R5,865.00

CurrentR5,865.00

1–30 days overdueR1,850.00

Total dueR7,715.00

Example only — figures above are illustrative, not real.

How often to send one

Monthly is the standard cadence for any client with recurring work, sent on a fixed date — the first of the month, or the day after your own billing cycle closes. For a one-off client with multiple invoices clustered around a single project, a statement at project close is more useful than waiting for a calendar date. Either way, consistency matters more than frequency: a client who knows to expect a statement on the same date every month is far less likely to dispute it.

Once a statement reveals genuinely overdue amounts, here's the follow-up sequence that gets them paid without burning the relationship. And if the underlying invoices themselves are missing required fields, check they meet SARS's tax invoice requirements first — a statement built on non-compliant invoices just surfaces the same problem at a higher level.

Zuvo builds the statement for you

Pick a client and a period — Zuvo pulls the real invoice data, builds the aging breakdown, and sends it as a PDF or emails it directly.

Try Zuvo free for 7 days, no card

General business guidance, not a substitute for advice from your own accountant on debt collection or credit control practices specific to your business.