Open Invoice or Closed Invoice? Which One Should You Issue and When?
When issuing an invoice, many business owners ask themselves: should I issue an open invoice or a closed invoice for this sale? If you want to avoid making the wrong choice and ending up with confusion in your accounts, you are in the right place. In this article we clarify the differences between open and closed invoices, which one to issue in which situation, and how each is reflected in the accounts.
🚀 At a Glance
Differences between closed and open invoices: If you have received payment upfront, a closed invoice; if payment will be made later, an open invoice.
Stamp and signature: Placing them at the top on an open invoice and at the bottom on a closed invoice is a common commercial practice; it is not a legal requirement.
Difference in accounting: With an open invoice, the amount to be collected from the customer is tracked in the current account. With a closed invoice, since payment has been made, a collection entry is created.
Validity in e-Invoice: The open and closed invoice distinction can also be applied to e-Invoices and e-Archive Invoices. What matters here is the payment status at the time the invoice is issued.
What Is an Open Invoice?
In short, an open invoice is an invoice you issue for sales whose payment you have not yet collected. You issue an open invoice when you deliver goods or services to your customer but defer payment to a later date (a due date) instead of taking it upfront. Symbolised on a traditional invoice by placing the stamp and signature at the top, this method means in accounting terms "I have delivered the product but the amount owed to me is still outstanding". This way you both formalise the sale and formally start tracking your receivable.
In commercial practice, the main sign that distinguishes an open invoice is that the stamp and signature are placed at the top of the invoice. This shows that the buyer's debt is still outstanding and payment has not yet been made.
What Is a Closed Invoice?
A closed invoice is an invoice you issue for sales whose payment you collect immediately in cash, by credit card or by bank transfer/EFT. You issue a closed invoice the moment you shake hands with your customer and the money is in your pocket. Symbolised in traditional practice by placing the stamp and signature at the bottom of the invoice, this method means in accounting language "The sale has taken place, payment has been received and this account is closed". In other words, no debt or receivable remains to be tracked.
On a closed invoice, the stamp and signature are traditionally placed at the bottom of the invoice. This indicates that payment has been received in full and the transaction is complete for both parties.
Differences Between Open and Closed Invoices
1. Payment Timing and Method
The most basic difference is the timing of payment. With an open invoice, payment is made in instalments according to a payment plan or at the end of a set period. With a closed invoice, payment is made upfront, at the same time as the invoice is issued.
2. Position of Stamp and Signature
Tax legislation has no requirement on which part of the invoice the stamp and signature should go; this is purely a signalling system that has developed from commercial custom. Even so, the common practice is as follows:
Open invoice: Stamp and signature at the top of the invoice
Closed invoice: Stamp and signature at the bottom of the invoice
3. Effect on Accounting Entries
The two invoice types also affect the accounting records differently:
Feature | Open Invoice | Closed Invoice |
Payment status | Not yet made, on credit | Made, upfront |
Debt status | Customer's debt remains outstanding | Debt is settled |
Stamp and signature | Top of the invoice | Bottom of the invoice |
Accounting entry | Recorded as a receivable (debit) in the customer's current account | Recorded as a collection in the cash or bank account |
4. Legal Status
The distinction between open and closed invoices has no binding effect under tax law. Both invoice types are legally equivalent; the difference between them only serves to show the payment status between seller and buyer.
Open/Closed Invoices in e-Invoice and e-Archive Invoice Systems
With the move to digital invoicing systems, a common question is how this distinction applies to e-Invoices. In e-Invoice and e-Archive Invoice systems, it is possible to issue both open and closed invoices. Although the position of the stamp and signature is not as decisive as on paper invoices, stating the payment status on the invoice or in the description field is important for mutual reconciliation.
Which Invoice Should Be Issued for Which Sale?
Cash sales: If the price of the goods or services is collected immediately, a closed invoice is issued.
Credit sales: If payment will be made on a set date or in instalments, an open invoice is issued.
Partial payments: If part of the price is received upfront and the rest is deferred, it is sounder to proceed with an open invoice, in line with your business's current account tracking, and record the partial collection separately.
Conclusion: What to Consider When Choosing the Right Invoice Type
Make clear whether payment has been received at the time of sale; this is the only criterion that determines the invoice type.
Mark the stamp and signature position in line with commercial custom, so the other party and your accountant understand the situation at a glance.
When you issue an open invoice, keep your current account tracking up to date and make a separate entry when the collection takes place.
Remember that this distinction is not a legal requirement under tax legislation; what really matters is your business's accounting order.
❓ Frequently Asked Questions
What is the main difference between an open invoice and a closed invoice?
The most basic difference is the timing of payment: with a closed invoice the price is paid upfront when the invoice is issued, while with an open invoice payment is tied to a due date and made later.
Is there a legal difference between open and closed invoices?
No. Tax legislation does not define this distinction; both invoice types are legally equivalent and the distinction comes only from commercial practice.
Can an e-Invoice be issued as closed?
Yes. In e-Invoice and e-Archive Invoice systems it is possible to issue both open and closed invoices; the difference again comes down to stating the payment timing.
Why are the stamp and signature placed in different parts of the invoice?
This practice comes from commercial custom, not legislation. On an open invoice the stamp and signature at the top show that the debt is still outstanding; on a closed invoice, at the bottom, they show that payment is complete.
What happens if a closed invoice is issued by mistake for a credit sale?
This makes the invoice appear to have been collected even though payment has not yet been received, and can cause mismatches in your current account tracking. That is why it is important to choose the invoice type correctly according to the payment status.
