Create your debit note

A debit note generator gives businesses a structured way to record an additional amount owed or an upward adjustment to a transaction that has already been invoiced. When a supplier discovers an undercharge after the invoice went out, when extra items were supplied, or when the customer agreed to absorb an additional cost, a debit note records the difference against the original transaction — without forcing the seller to issue a brand-new invoice. This debit note generator lets you produce that adjustment document in under a minute. Enter your business and customer details, reference the original invoice, explain the reason, list the additional items or charges, and the live preview updates with every change. No signup, no watermark, nothing to install — just a clean PDF that keeps both sides' books honest.

What is a debit note?

A debit note is a commercial document used to inform a buyer that the amount they owe has been increased. It is the opposite of a credit note: where a credit note reduces a buyer's payable, a debit note increases it. Suppliers issue debit notes when they have undercharged on an invoice, when additional items have been supplied, when freight or tax was missed, or when a price correction is needed after the original invoice was issued. Buyers can also issue debit notes to suppliers in some workflows, for example to claim a debit for short-supply or damaged goods. A debit note always references the original invoice or transaction, carries its own unique number, and explains the reason for the increase so both sides can update their books and the adjustment stays auditable.

What to include on a debit note

• Issuer details: Business name, address, and contact information of the party raising the debit.
• Recipient details: Name and address of the customer or supplier being debited.
• Debit note number: A unique sequential reference for the adjustment.
• Original invoice reference: The number of the invoice or transaction being adjusted, so the two can be reconciled.
• Reason for the debit: A short explanation — undercharge, additional supply, missed freight, tax correction.
• Items or charges being added: A description, quantity, and unit price for each line being debited.
• Additional amount and tax: The subtotal, the tax on the additional amount, and the total debit applied.

How to create a debit note online

1. Open the debit note generator above and pick a template.
2. Enter your business details in the Issued By section.
3. Add the recipient in the Issued To section.
4. Fill in the debit note number, issue date, and the original invoice number being adjusted.
5. Write a short reason for the debit — undercharge, additional supply, freight correction.
6. Add a line for each item or charge being added, with quantity and unit price.
7. Set the tax rate so the tax on the additional amount is correct.
8. Preview the live document and download the PDF ready to send to the recipient.

Debit Note vs Credit Note

Debit notes and credit notes are mirror-image adjustments. A debit note increases the amount the recipient owes — typically issued by a supplier when an undercharge or additional charge is discovered after the original invoice went out. A credit note decreases the amount the customer owes — typically issued by a seller when goods are returned, an overcharge is identified, or a discount is applied post-invoice. In double-entry terms, a debit note increases the buyer's payable and the seller's receivable; a credit note reduces them. Both documents should always reference the original invoice and explain the reason for the adjustment, so the books on both sides stay balanced and auditable across every change.

Frequently asked questions