Outage in Officient

Exact Online Fiscaal – Error message when submitting 2025 Income Tax returns (NL)

Resolved Minor

February 27, 2026 - Started about 1 month ago - Lasted 4 days
Official incident page

Incident Report

You may receive an error message when submitting 2025 Income Tax returns. The error message you may receive is: " Reden: VAS500: Het aangeleverde instance document voldoet niet aan de Nederlandse taxonomie. Hierdoor kan het aanleververzoek niet door Digipoort worden verwerkt. ..." We are investigating this issue and we will update this page as soon as more information becomes available. Our apologies for the inconvenience.

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Latest Updates ( sorted recent to last )

RESOLVED about 1 month ago - at 03/03/2026 08:00AM

This issue has been resolved. You can submit the Income Tax 2025 again without receiving the error again. Our apologies for the inconvenience.

IDENTIFIED about 1 month ago - at 03/02/2026 01:11PM

The issue has been identified and a fix is being implemented.

INVESTIGATING about 1 month ago - at 02/27/2026 03:58PM

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