What Is a Statement of Account and When Do You Send One?

You have been working with the same client for six months. There are three invoices outstanding, at different amounts, sent on different dates, some partially overdue. You want to chase them, but sending a separate reminder for each invoice feels like a lot of noise. One email with three attached PDFs and a carefully worded note for each is not much better.

A statement of account is the cleaner solution.

What a statement of account is

A statement of account is a summary document that shows the full transaction history between you and a specific client over a given period. It lists every invoice you have issued, every payment received, and the current balance outstanding. It is not a new invoice. It does not create a new obligation. It is a snapshot of where things stand.

Think of it as a mini bank statement, but for your professional relationship with a particular client rather than for your own account.

A typical statement of account includes your details and the client's details at the top, a reference period (for example "1 January to 31 May 2026"), and then a table of transactions. Each row in the table shows a date, a reference number, a description (usually the invoice number), the amount, and the running balance. At the bottom, a clear total outstanding.

How it differs from an invoice

An invoice is a request for payment for a specific piece of work. It has a clear due date and refers to a defined scope. An invoice creates the obligation.

A statement of account does not create any obligation. It summarizes obligations that already exist across multiple invoices. Clients who receive a statement of account already know about the individual invoices. The statement just puts them all in one place and shows the total clearly.

This distinction matters because some clients treat a statement of account the way they treat an invoice, as something requiring payment. That is the intended effect, but the legal standing is different. If you ever need to pursue payment formally, you rely on the individual invoices, not the statement.

When to send one

Statements of account are most useful in two situations.

The first is ongoing relationships where invoices accumulate. If you bill a client monthly, or if they have a running account with you, a monthly statement keeps both sides aligned. The client always knows what they owe, you have a regular opening to ask about outstanding items, and nothing drifts past due without being noticed.

The second is when chasing multiple overdue invoices. Instead of sending separate reminders for each one, a statement pulls everything into one document. The email can simply say: "Please find attached a statement of account for the period January to May. Total outstanding is £4,200. Can you let me know when these will be settled?" That is more professional than three separate emails and more likely to get a response.

Some larger companies actually request a statement of account from their suppliers at the end of each month to reconcile their records. If a client asks you for one, this is what they mean.

What it should include

Your name or business name, address, and contact details. The client's name and address. A clear statement period. A transaction table with columns for date, reference, description, debit (amounts charged), credit (payments received), and balance. The closing balance shown clearly, ideally both in the table and again as a summary figure at the bottom.

If any invoices in the table are overdue, you can highlight them or note them in a brief summary line. "Invoices INV-041 and INV-044 are past their due dates. Total overdue: £2,600."

Keep the format simple. The purpose of the document is clarity, not sophistication. A clean table that a client's finance team can read in ten seconds serves you better than a beautifully formatted PDF that takes a minute to parse.

The statement of account tool on Invoice No. creates this document for you. Add the invoices and payments for the period, and it generates a clean summary PDF ready to send.

When it works and when it does not

A statement of account is most effective with clients who are disorganized rather than unwilling to pay. If an account has gone genuinely quiet because someone changed jobs or the company is having cash flow difficulties, a statement of account signals that you are tracking things closely and expect the situation to be resolved.

It is less useful with clients who are actively avoiding payment. Those situations call for a formal demand letter, not a summary document. If you are past the point of polite chasing, the statement of account is still worth sending as part of the escalation paper trail, but it is not the tool that will shift behavior on its own.

For ongoing clients who pay reliably, a monthly statement is more of a service than a chase mechanism. It keeps the relationship professional and makes their reconciliation easier, which they often appreciate.

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