Paid Invoice Template: How to Mark an Invoice as Paid

Quick answer: A paid invoice template is your original invoice updated to show it has been settled: same invoice number, date, items and total, plus the payment date, method and reference, an amount paid equal to the total and a balance due of zero. Add a PAID stamp or watermark only once the full amount has cleared.

Customers ask for paid invoices all the time. An accounts team needs one to close a bill, a client wants proof for an expense claim, or a grant funder asks for evidence that a supplier was paid. A paid invoice template gives you a consistent way to answer those requests without inventing a new document each time. You can build one in our free invoice generator by reopening the original invoice and filling in the amount paid field.

This guide explains what changes (and what must not change) when you mark an invoice as paid, how a paid invoice differs from a receipt, how to handle deposits and partial payments, what records to keep, and a worked example with real totals.

What is a paid invoice?

A paid invoice is the same invoice you sent the customer, updated to record that payment has been received in full. It is not a new sale and it is not a new invoice. It simply moves the document from "money owed" to "money received" so that both parties have a record of the settled transaction.

That distinction matters because an invoice is a request for payment, as explained in our guide to what an invoice is. Once the money arrives, you need some evidence of settlement. You have two choices: issue a separate receipt, or update the invoice itself. A paid invoice template is the second option, and for many freelancers and small businesses it is the simpler one because everything about the sale stays on one page.

A paid invoice typically shows:

• The original invoice number, issue date and due date.
• The original line items, discount, tax and total, unchanged.
• An amount paid figure equal to the total.
• A balance due of 0.00.
• The payment date, payment method and a reference such as a transaction ID, cheque number or last four digits of a card.
• Optionally, a PAID stamp, watermark or heading.

When customers ask for a paid invoice

Requests for a paid invoice usually come from one of a handful of places. A corporate accounts payable team may need it to close the bill in their system and stop automated chasers. An employee paying a business expense with a personal card may need it for a reimbursement claim. A client claiming a cost against a grant, insurance policy or project budget may have to show that the supplier was actually paid, not just billed. And some customers simply like a tidy file where every invoice carries a clear status.

Each of those readers is looking for the same three things: proof that the amount on the invoice matches what left their account, the date it was paid, and confirmation that nothing more is owed. A paid invoice answers all three on one page. If the reader specifically asks for a "receipt", check whether a paid invoice will do; many expense systems accept either, but some funders insist on a separately numbered receipt.

Paid invoice vs receipt vs statement

People use "paid invoice" and "receipt" interchangeably, but they are different documents. Our article on invoice vs receipt covers the general difference; the table below focuses on how a paid invoice fits in.

Document	When it is created	Main purpose	Numbering
Invoice	When you bill the sale	Request payment	Invoice number
Paid invoice	After full payment arrives	Show the same sale is settled	Same invoice number
Payment receipt	When any payment arrives	Confirm a specific payment	Separate receipt number
Statement of account	Monthly or on request	Summarise all invoices and payments	Usually none, dated

If a customer pays one invoice in one go, a paid invoice usually does everything they need. If they pay in several instalments, or pay several invoices with one transfer, a payment receipt template or a statement of account often explains the money better than a stack of updated invoices.

How to mark an invoice as paid: step by step

Marking an invoice as paid takes a couple of minutes if you follow the same routine every time.

1. Confirm the money has cleared. Check your bank or payment platform, not just a remittance email. A cheque that bounces or a card payment that is reversed means the invoice is not paid.
2. Open the original invoice. Use the exact version you sent, with the same number, date and line items.
3. Enter the amount paid. Type the amount received into the amount paid field. If it equals the total, the balance due becomes 0.00.
4. Add payment details. In the notes, write the date received, the method and the reference, for example "Paid in full on 3 November 2026 by ACH, ref 55120."
5. Add a PAID marker. Turn on a watermark with the word PAID, or add PAID IN FULL to the notes or terms.
6. Save a new PDF. Keep both the original and the paid version so your records show the full history.
7. Record the payment in your books. Match the payment to that invoice number in your ledger or spreadsheet. Our cash application guide explains how to match payments to invoices when remittance details are vague.
8. Send the paid copy if requested. Email it with a short subject line such as "Invoice 1042: paid in full, thank you."

What must not change on a paid invoice

The biggest mistake with paid invoices is editing the original sale details. Treat the original invoice as a fixed record. On the paid version, do not change:

• The invoice number. It ties the sale to your books and your customer's records. A new number creates a duplicate, because each invoice number should represent exactly one sale.
• The issue date. The paid date goes in the notes; the issue date stays as it was.
• The line items and prices. If something was wrong, correct it with a credit note that references the original invoice.
• The tax amount. Tax is calculated on the sale, not on the payment. Changing it on a paid invoice can create a mismatch with the tax return you filed.

What you are allowed to add is information about payment: the amount paid, the balance due, the date, the method, the reference and a paid marker. That way the paid invoice is a true copy of the original plus a settlement record.

PAID stamp wording and design

A PAID stamp is a visual shortcut. Anyone flicking through a file can see which invoices are settled without reading the totals. Common wording includes:

• PAID for a simple, clear marker.
• PAID IN FULL when you want to rule out any doubt about a remaining balance.
• PAID WITH THANKS for a friendlier tone with regular clients.
• PAID: 03 NOV 2026 when you want the date inside the stamp itself.

Keep the stamp large but semi-transparent so the line items stay readable. A diagonal watermark at around 15 to 25 percent opacity works well on most layouts. Our generator includes a watermark option with adjustable text and opacity, and it pairs well with clean layouts such as the minimal invoice template.

Remember that the stamp is decoration. The payment date, method and reference are what turn a paid invoice into useful evidence, so never rely on the stamp alone.

Worked example: marking an invoice as paid after a deposit

Here is how a paid invoice template works with real numbers. A small design studio billed a client for a branding package and took a deposit up front.

Line item	Qty	Rate	Amount
Logo and brand identity package	1	$1,200.00	$1,200.00
Business card design (2 versions)	2	$150.00	$300.00
Printing, 500 business cards	1	$180.00	$180.00
Subtotal			$1,680.00
Discount (fixed, returning client)			-$80.00
Sales tax 7% on $1,600.00			$112.00
Shipping			$15.00
Total			$1,727.00

The 7 percent rate is only an example; check the rate that applies where you sell with our sales tax calculator. The client paid a $500.00 deposit when they signed, so the invoice originally showed amount paid $500.00 and balance due $1,227.00 ($1,727.00 minus $500.00). If you take deposits regularly, our deposit invoice guide covers how to bill them.

On 3 November the client transferred the remaining $1,227.00. To create the paid invoice, the studio:

• Kept invoice number 1042 and the original issue date.
• Changed amount paid from $500.00 to $1,727.00 ($500.00 deposit plus $1,227.00 final payment).
• Checked that balance due now reads $0.00 ($1,727.00 minus $1,727.00).
• Added a note: "Deposit $500.00 received 6 October 2026 by card. Balance $1,227.00 received 3 November 2026 by ACH, ref 55120. Paid in full."
• Turned on a PAID watermark and saved a new PDF.

Every number still adds up, both payments are traceable, and the client has one document that shows the full history of the sale.

Partial payments: when not to use the PAID stamp

A PAID stamp on an invoice that still has a balance is an invitation to an argument. If a client has paid part of an invoice, show the amount received and the balance due, and use wording like "Partially paid: balance due $1,227.00 by 15 November 2026." Our partial payment invoice guide walks through instalments, short payments and how to word follow-ups.

If the customer paid less than expected because they deducted a fee or disputed a line, do not mark the invoice as paid. Either agree a credit note for the difference or chase the shortfall. The guide to short payments and deductions explains how to handle each case. Once the balance is genuinely zero, the PAID stamp can go on.

Records to keep with paid invoices

A paid invoice is strongest when it sits next to independent evidence of the payment. The IRS lists invoices alongside proof-of-payment documents such as canceled checks, electronic funds transfer records and card statements in its IRS guidance on what records to keep. In practice, for each paid invoice keep:

• The original invoice PDF as sent.
• The paid version.
• The bank, card or platform record of each payment.
• Any remittance advice or email from the customer.
• Any credit notes or refunds linked to the invoice.

As of 2026, the IRS general rule is to keep records supporting your return for 3 years, with longer periods in certain cases such as underreported income or bad debt deductions. UK sole traders must keep records for at least 5 years after the 31 January submission deadline of the relevant tax year, according to GOV.UK guidance on how long to keep records. Many businesses simply keep everything for six or seven years to be safe. This is general information, not tax or legal advice.

Common mistakes with paid invoices

• Marking an invoice paid before the money clears. Pending transfers, post-dated cheques and disputed card payments are not cash yet.
• Issuing a new invoice instead of updating the old one. This doubles your recorded sales and confuses the customer.
• Deleting the original. Keep both versions so you can show what was billed and when it was paid.
• Leaving out the payment reference. Without it, matching the invoice to your bank statement later is guesswork.
• Using PAID on part-paid invoices. Always show the true balance due.
• Forgetting to stop reminders. If you send payment reminder emails, cancel any scheduled ones as soon as the invoice is settled.

Paid invoice template checklist

Before you send a paid invoice, check that it has:

• The same invoice number, issue date and line items as the original.
• Amount paid equal to the total and a balance due of zero.
• Payment date, method and reference in the notes.
• A clear PAID marker that does not hide the figures.
• Your business and customer details unchanged.
• A file name that shows its status, such as "INV-1042-PAID.pdf".

If you would rather send a separate document, see our payment receipt template. If the payment was a request you issued before work started, our new guide to the payment request template explains how that document fits with the final invoice.

Create your paid invoice template now

A paid invoice template is the simplest way to prove that a sale is settled: keep the original details, add the amount paid and payment reference, check the balance due is zero and apply a PAID marker. Open the invoice generator, recreate or reload your invoice, enter the payment, switch on the watermark and download a clean PDF in seconds. If you are rebuilding an old invoice, copy the client details and line items exactly so nothing changes except the payment information.