What the roadmap says
The roadmap entry says the feature will let companies operating in Iceland generate audit files with the established SAF-T framework. It will reuse the existing SAF-T W1 implementation to cover country-specific compliance scenarios. It is meant to produce a standardized electronic audit file that can be shared with tax authorities and auditors when needed. Microsoft also frames it as a more consistent audit-reporting approach across supported countries, with less need for separate per-country solutions.
The entry does not say several things:
- It names no Icelandic SAF-T schema or version.
- It gives no XML requirements or validation rules.
- It does not say which data will be included.
- It does not say whether Iceland requires periodic filing or only on-request delivery.
- It gives no setup procedure.
Don't assume any of those details are the same as in Norway, Denmark or another country's implementation.
Why "reuse W1" matters
SAF-T is an OECD standard. As one explainer on the standard puts it, each country decides whether businesses file it on a schedule, hand it over only when an auditor asks, or only need software that can export it. So a shared framework doesn't settle what a given country requires.
In Business Central, the shared framework is the Audit File Export extension. Microsoft's 2023 release wave 1 update 22.4 notes say SAF-T features were extracted to W1 as a preinstalled extension that lets you export different entries, based on auditor or authority requirements. The note describes a generic audit file framework delivered as that extension. The Iceland item builds on that W1 work rather than starting from scratch.
The framework is not a finished format, though. Microsoft's documentation says the functionality doesn't have a preinstalled file format for export. A specific format has to come from an app, such as SIE, FEC or SAF-T, or from custom development. One architecture write-up makes the same point: the core only provides an empty implementation, and each country extension adds its own. The Iceland roadmap item therefore describes a planned capability, not something you can switch on today.
Where Iceland stands today
Microsoft's Iceland local functionality overview was last updated on October 26, 2026. It lists these features as available:
- Icelandic localization based on the W1 Base App, from v24.0
- Printing VAT summary information on documents
- Special data output and reports for the tax authority
- Electronic invoicing for single-copy invoices
- Mapping IRS numbers to the chart of accounts
- Deleting posted invoices and credit memos
- Registration number in the Icelandic localization, from v24.0
SAF-T is not on that list. The page also says there are currently no upcoming regulatory features or requirements, and it invites users to submit a Regulatory Feature Alert. That fits a roadmap item that is still in development. It also means this page doesn't, on its own, say the feature is driven by a new Icelandic legal requirement.
What the generic export workflow involves
The following is the generic Audit File Export workflow from Microsoft Learn. It is not an Iceland-specific guide. The Iceland format may add fields, checks or mapping requirements that aren't documented yet.
- Audit File Export Setup. Pick the default export format code. Only formats enabled through Feature Management, or added as custom formats, are available.
- Data quality checks. Optionally turn on checks for company information, customers, vendors, bank accounts, ZIP codes and addresses. You can also set a default ZIP code for customers or vendors that don't have one.
- Audit File Export Format Setup. Set a default file name or file name template. Optionally turn on automatic zipping.
- G/L Account Mapping. Microsoft notes that most formats required by authorities for G/L accounts require a specific standard chart of accounts. You create a mapping code for the reporting period and link it to the export format. You can initialize the lines from your chart of accounts or copy another mapping. There is also an option to include the incoming balance for balance-sheet accounts, instead of only the period's net change.
- Audit File Export Documents. Create a new document, choose the format and mapping code, and optionally split output by month or date. You can also add a header comment and contact, and generate multiple zip files if the installed format app supports it.
- Processing. You can run the export in parallel background jobs or in your current session. Microsoft warns that exporting many entries in the current session can cause performance problems. It recommends parallel processing during non-working days or hours.
- Download. Use Download as File to get the audit file for the selected line.
Whether Iceland's format will need a standard account mapping is not established by the roadmap item. Don't assume it either way.
What Icelandic Business Central admins can do now
- Track the roadmap item. Dates marked "estimated" can slip. Preview and general availability are separate milestones.
- Wait for the format documentation. When the Iceland format is documented, check its specific requirements. That includes any account mapping, tax-code mapping and responsible-person fields.
- Clean up master data early. The data-quality checks in the generic framework cover company, customer, vendor, bank-account and address fields. Missing or malformed values there are an easy thing to fix before any export.
- Plan for a heavy export. Microsoft's guidance on large exports suggests scheduling them off-hours. That is likely to matter for companies with large ledgers.
- Confirm obligations with advisers. The roadmap does not state Icelandic legal requirements, and this piece doesn't either. Talk to your accountant, auditor or the tax authority about what applies to you.
Analysis
This is a modest but sensible entry. Reusing the W1 framework lets Microsoft add countries without rebuilding the export engine each time. Customers get a familiar setup flow, and partners avoid maintaining separate tools. The trade-off is that the framework only delivers value once a country format is finished and validated. Whether the Iceland format fits local needs won't be clear until Microsoft publishes the documentation and preview details.
For now, treat November 2026 and April 2027 as planning markers, not commitments.