VAT and numbering

How VAT is calculated How Bilify works out line tax, discounts, rounding, reverse charge and advance invoices, and what is frozen when you issue a document. Tax rates Which VAT rates Bilify offers, where they come from, how to set a default rate on a product and how to use a custom percentage on a line. Numbering series Create a numbering series, build its pattern with {SEQ}, {YYYY} and other tokens, choose a reset policy and a default, and learn how gaps are avoided. Interactive walkthrough Document type settings Choose which document types your company issues, bind each one to a numbering series and understand what you can and cannot change about a type.