Statement of Invoices: Meaning, Format and Sample
Learn what a statement of invoices is, what to include, how it differs from an invoice, and how to summarize customer account activity clearly.
Published · Updated · By ToolNimbly

A statement of invoices is a summary of invoices and account activity for one customer over a chosen period. It is useful when a client has several bills, partial payments, credits, or an open balance that is hard to understand from one invoice alone. Rather than replace individual invoices, the statement brings them together so both sides can see what has been issued, paid, credited, or remains outstanding.
Businesses may call this an account statement, customer statement, or statement of account. The purpose is the same: provide an organized snapshot of activity. It is not a replacement for the underlying invoices, receipts, contracts, or tax records.
What is a statement of invoices?
A statement of invoices lists one customer’s transaction activity for a defined date range. It commonly includes invoice numbers, invoice dates, due dates, original amounts, payments or credits, and the current balance. It might show all activity during a month or only open invoices, depending on what the customer needs.
The statement is especially helpful where a client receives recurring invoices, pays several bills together, or has an accounts-payable team that needs a single reference. It can also give a small business an early way to spot a missing payment, duplicated entry, or old balance before a problem grows.
What to include
- Your business name, contact details, and statement date.
- The customer’s billing name and account or client reference.
- The start and end dates for the activity shown.
- An opening balance where relevant.
- Each invoice number, issue date, due date, and original amount.
- Payments, credits, or adjustments applied to each invoice.
- The total amount currently due or credit balance.
- A clear route for the customer to ask questions or send remittance information.
Use invoice references exactly as they appear on the original documents. A statement should make it easier to find an invoice, not create a second naming system that causes confusion.
Statement of invoices example
Imagine a design studio bills a business customer for three projects during April. The customer has paid the first invoice, partially paid the second, and has not yet paid the third. The April statement can list all three invoice numbers and amounts, show the payment against the first, the partial payment against the second, and the open balance for the third. The customer can then reconcile the statement with their own payment records.
If the studio issued a credit note for an overcharge, the statement should show that adjustment too. An unexplained balance is not useful to either party.
Statement versus invoice versus receipt
| Document | Main purpose |
|---|---|
| Invoice | Requests payment for a specific sale or service. |
| Statement of invoices | Summarizes multiple invoices, payments, and balances for a period. |
| Receipt | Confirms that a specific payment was received. |
| Credit note | Records a reduction or credit linked to a prior charge. |
A statement should not be sent as a surprise substitute for a missing invoice. If a client has not received the original invoice, resend it and then use the statement as the summary it is meant to be.
How to prepare a statement
- Choose the customer and the date range for the statement.
- Gather invoices, payment records, credits, and adjustments for that period.
- Check that each payment is applied to the correct invoice.
- List documents in a consistent order, usually by date or invoice number.
- Calculate the opening balance, activity, and closing balance carefully.
- Compare the statement with your accounting records before sharing it.
- Send it with a clear note explaining the period and any action needed.
ToolNimbly can help you create individual invoices with clear dates, line items, terms, and PDF output. It does not maintain an invoice history, reconcile payments, generate customer statements, track open balances, or send reminders. Keep those account-level records in the bookkeeping or billing system you use for your business.
How often should you send a statement?
Many businesses send a statement monthly to clients with ongoing activity. Others send one only when a customer asks, an account is overdue, or a project closes. The best frequency depends on the relationship and the billing terms. Choose a routine that gives the customer enough context without creating unnecessary duplicate messages.
Before sending a statement with an overdue balance, check that the invoice was actually delivered to the correct contact and that the payment has not arrived through a channel you have not recorded yet. A respectful, accurate statement is more useful than an automated message based on incomplete records.
Common mistakes
- Leaving out the date range: The client cannot tell what period the balance covers.
- Missing payments or credits: This can make a customer appear to owe too much.
- Using incorrect invoice numbers: Reconciliation becomes harder.
- Showing only a total: List enough activity to explain how the balance was reached.
- Sending it to the wrong person: Confirm the billing contact, especially for larger clients.
- Treating the statement as proof of payment: Keep payment receipts and confirmations separately.
Recordkeeping
Store the statement with the invoices, credits, payment evidence, and relevant customer communication. This makes it easier to answer questions later. The IRS says business records should clearly show income and expenses, and lists invoices among supporting documents that help substantiate those records. See the IRS recordkeeping guidance for general U.S. information.
Quick statement checklist
- Is the correct customer and date range shown?
- Do the invoice references match the original documents?
- Are all payments, credits, and adjustments included?
- Does the closing balance reconcile to your records?
- Can the customer see which invoices still need attention?
- Have you kept the statement with the underlying documents?
Frequently asked questions
Can a statement replace an invoice?
Usually no. A statement summarizes activity, while an invoice provides the details and payment request for a specific transaction. Send both when the customer needs both.
Should I include paid invoices?
Include them when they help explain the account activity for the period. An open-invoices-only statement can be useful too, provided you label it clearly.
What if a customer disputes a statement?
Review the underlying invoice, payment record, credit note, and communication. Correct an error with a clear document trail rather than changing the summary silently.
A good statement of invoices makes the account easier to understand at a glance. It gives the customer a reliable summary and gives your business a useful check on its own billing records.
Put this into practice
Use the Invoice tool for the calculation, then read What an invoice needs to contain for the supporting explanation.