Invoice ToolkitPDF billing tools
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Running your business·Guide 7 min read·Part 2 of 5

Invoice Missing Fields Checker

Common fields that cause finance teams to reject or delay invoices.

  • —Missing due dates and PO numbers delay AP approval.
  • —Line items need quantity, rate, and clear descriptions.
  • —Run a quick check before every send.

Critical fields

Invoice number, issue date, due date, seller and buyer names, line items with amounts, currency, and total due are the baseline. Missing any of these often stops AP from processing the invoice.

  • Document number and dates
  • Seller and buyer names
  • Currency and total

Corporate requirements

B2B clients may require PO numbers, billing addresses, tax IDs, or payment references. Ask upfront and add them before the first invoice — not after a rejection.

  • Corporate PO numbers
  • Tax IDs when B2B
  • Billing vs service address

Check before you send

Run through a checklist or use the Invoice Checker to catch gaps while you still have context. Fixing fields after sending looks unprofessional and delays payment.

  • Invalid quantity or rate
  • Total does not match lines
  • Vague descriptions

Try it with our free tools

Put what you learned into practice — no signup required, and your invoice data stays in your browser.

Invoice Checker · Invoice Generator · PO number invoice

Requirements vary by country and business type. This guide explains common billing workflows and is not tax, legal, or accounting advice.