How to read a software invoice, line by line

In short: Every part of an invoice answers one question: what, how much, by when, and what is still due.

An invoice looks busy the first time. Each part answers one question.

1. Invoice number (for example INV-2026-0001): the reference to quote in any message about this bill.
2. Issue date and due date: when it was sent and when payment is expected.
3. Bill to: the client name on the record. Tell me if it needs correcting, since it is used for your accounts.
4. Lines: each piece of work with quantity, unit price and amount.
5. Discount: shown as its own line, never mixed into prices.
6. Total: the full amount in one currency.
7. Installments: how the total is split, with a due date for each.
8. Paid and balance: what has been received so far and what is still due.
9. Payment instructions: how to pay and what to quote so the payment is matched correctly.

Status words

• Draft: still being prepared; not yet sent.
• Issued: final. Lines can no longer be changed.
• Partly paid: some money is received, a balance remains.
• Paid: the balance is zero.
• Overdue: an installment passed its due date without payment.

If something looks wrong

Tell me the invoice number and the line. Because issued invoices are frozen, a correction is made openly, not by quietly editing numbers.