A credit note is a document used to request payment while meeting the tax rules that apply to this type of billing. Getting it right protects both you and your client, keeps the books clean, and avoids disputes over what was agreed.
Every valid credit note should include the following mandatory details: 1. original invoice number 2. original invoice date 3. reason for the credit 4. negative line amounts 5. your VAT number. Missing any of these can make the document harder to enforce or, where tax is involved, invalid for VAT purposes.
Tax treatment: A credit note corrects or cancels an earlier invoice. It carries negative amounts and must reference the original invoice number and date so the VAT can be adjusted. The rate applied here is 19%. When you bill business customers in another country, check whether the reverse-charge or zero-rating rule applies before you finalise the total.
A typical credit note lists concrete line items such as: Refund – defective item (1 x $-150); Refund – overcharge (1 x $-40). Always show quantities, unit prices, and the tax amount per line so the grand total is transparent and easy to verify.
Practical tips: 1. Always link the credit note to the original invoice. 2. Match the VAT rate used on the original. 3. Issue a new invoice if only part changed, not a full cancel.. Good invoicing habits - consistent numbering, clear payment terms, and prompt delivery - reduce late payments and build trust.
InvoiceFormly helps you produce a correct credit note in minutes. Pick the template, enter your details, add line items, and download a clean PDF or send it by email. Tax math, numbering, and multilingual labels are handled automatically so you can focus on the work.