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title: General
summary: "Iceland general localization in Business Central: rules for deleting posted invoices and credit memos, exporting audit data, mapping IRS numbers to the chart of accounts, and registration number fields. Answers questions on Icelandic legal and tax compliance setup."
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---

# General

> Iceland general localization in Business Central: rules for deleting posted invoices and credit memos, exporting audit data, mapping IRS numbers to the chart of accounts, and registration number fields. Answers questions on Icelandic legal and tax compliance setup.

Path: [Business functionality](../../../business-functionality.md) > [Local functionality](../../local-functionality.md) > [Iceland](../iceland.md) > General · tier official · system localization · narrative reviewed (checked by Opus)

## Overview

This section collects the general Iceland-specific topics in Business Central. They cover compliance-driven behavior: what can be deleted, how data is exported for auditors, how accounts are tied to tax authority codes, and how registration numbers appear on documents.

The pages are independent of each other. Start with the topic that matches your task. For tax reporting, see the IRS number mapping page. For auditor requests, use the audit export page, which describes the Audit Files Export extension. For document deletion, see the deletion page; the rules changed in version 24.0 for companies that have the new localization enabled. For sales and payment data, see the registration number page; the fields are available once activated, from version 24.0.

## Key points

- Before v24.0, posted invoices and credit memos cannot be deleted in Iceland, per legislation.
- After v24.0 with the new localization enabled, deletion is allowed only for documents older than seven years at the start of the fiscal year.
- The Audit Files Export extension exports GL and VAT entries in formats such as SIE, FEC, and SAF-T.
- Audit export supports GL account mapping, data quality checks, parallel processing, and zip export.
- IRS numbers are created as Internal Revenue Service codes and mapped to general ledger posting accounts for tax authority compliance; a reverse prefix option is mentioned.
- When activated from version 24.0, Registration No. and Sender Reg. No. fields can be added to sales invoices, orders, credit memos, and payment export data.

## Learn pages

- [Deleting posted invoices and credit memos [IS]](https://learn.microsoft.com/dynamics365/business-central/LocalFunctionality/Iceland/deleting-posted-invoices-and-credit-memos): In Iceland, in accordance with legislation, you can't delete posted sales and purchase invoices and credit memos.
- [Export data for auditing](https://learn.microsoft.com/dynamics365/business-central/finance-how-to-export-audit-files): This article explains how to set up different export formats and then use them, based on auditor or authority requirements.
- [Map IRS numbers to chart of accounts [IS]](https://learn.microsoft.com/dynamics365/business-central/LocalFunctionality/Iceland/how-to-map-irs-numbers-to-chart-of-accounts): This article explains how to map predefined Internal Revenue Service (IRS) account codes to general ledger accounts.
- [Registration numbers in the Icelandic localization](https://learn.microsoft.com/dynamics365/business-central/LocalFunctionality/Iceland/use-registration-no): This article provides instructions about how to use registration numbers in the Icelandic localization.

## Business Central pages and reports

The pages, reports and queries this hub's Learn pages name (ms.search.form, API reference), joined to the code by exact object id (data/index/docs-objects.json); a page shows the table it runs on.

- [Page 5260 "G/L Account Mapping"](../../../../../objects/page/5260.md) · on [Table 5260 "G/L Account Mapping Header"](../../../../../objects/table/5260.md)
- [Page 5264 "Audit File Export Setup"](../../../../../objects/page/5264.md) · on [Table 5264 "Audit File Export Setup"](../../../../../objects/table/5264.md)
- [Page 5266 "Audit File Export Documents"](../../../../../objects/page/5266.md) · on [Table 5265 "Audit File Export Header"](../../../../../objects/table/5265.md)
- [Page 5267 "Audit File Export Doc. Card"](../../../../../objects/page/5267.md) · captioned "Audit File Export Document" · on [Table 5265 "Audit File Export Header"](../../../../../objects/table/5265.md)
- [Page 5270 "Audit File Export Format Setup"](../../../../../objects/page/5270.md) · on [Table 5268 "Audit File Export Format Setup"](../../../../../objects/table/5268.md)

Learn also names 1 object with no object page: page/5261.

Source: Microsoft Learn (CC BY 4.0). Descriptions are Learn's own.