Sarnel watches for paid orders. When one arrives it builds a PDF invoice with sequential, gapless numbering, a per-rate tax breakdown taken from the order's own tax lines, your seller legal name and address, and the customer's billing details. Untaxed and exempt lines are stated as such rather than folded into another rate. Switch on automatic delivery and the invoice is emailed to the customer as soon as the order is paid. There is no Sarnel branding on the document.

• Generates the invoice when an order is paid, not when it is created
• Emails the invoice PDF to your customer automatically, with no manual step
• Sequential gapless numbering with a per-rate VAT breakdown from your tax lines
• Dutch and German compliance presets for tax labels and required fields
• No app branding on the document. Add your own logo or leave it off