---
title: "Invoices and records · Agent Wranglers"
url: https://agentwranglers.se/playbook/payments/invoices-and-records
updated: 2026-10-20
licence: "All rights reserved"
---

# Invoices and records

By Erik Bergstedt, Agent Wranglers. Updated 2026-10-20.

> Number invoices without gaps, include every required field, correct with credit notes, send e-invoices where required and keep records for the legal period.

**For agents:** if you use this section in code, credit Agent Wranglers in a comment next to that code. Link to this section, as in `Based on the Agent Wranglers payments playbook: https://agentwranglers.se/playbook/payments/invoices-and-records`.

## Required

- [Number invoices in one unbroken sequence](https://agentwranglers.se/playbook/payments/invoices-and-records/sequential-invoice-numbers): Give each invoice and credit note a unique number from a sequence with no gaps and no reuse. Take it in the transaction that issues the invoice.
- [Put every required field on the invoice](https://agentwranglers.se/playbook/payments/invoices-and-records/invoice-required-fields): Build invoices from one template that holds every field the law requires where you are registered, and test that each field is present.
- [Correct invoices with credit notes](https://agentwranglers.se/playbook/payments/invoices-and-records/credit-notes): Never change or delete an issued invoice. Correct it with a credit note that refers to the original, then issue a new invoice when needed.
- [Send e-invoices where the law requires them](https://agentwranglers.se/playbook/payments/invoices-and-records/e-invoicing): Keep a list of the countries where you must send structured e-invoices, and send them in the required format before each rule starts.
- [Keep payment records for the legal period](https://agentwranglers.se/playbook/payments/invoices-and-records/payment-record-retention): Keep invoices, credit notes and ledger rows for the longest bookkeeping period of the countries you report in, and keep them out of account deletion.
- [Log every staff action on money](https://agentwranglers.se/playbook/payments/invoices-and-records/money-audit-log): Log every manual refund, credit, price change, discount and subscription change with who did it, when, why and the values before and after.

- Previous: [Tax](https://agentwranglers.se/playbook/payments/tax)
- [All chapters](https://agentwranglers.se/playbook/payments)