Ongoing since 09:51 AM UTC, affecting Tax Reporting - UK VAT & MTD.
HMRC have confirmed there are currently known issues with the CIS verification service and you can find more information on their website https://www.gov.uk/government/publications/construction-industry-scheme-service-availability-and-issues/construction-industry-scheme-cis-service-availability-and-issues
Affected components
Update timeline
- investigating Nov 12, 2026, 09:51 AM UTC
We are aware UK customers trying to verify CIS contractors are receiving an error message. This is due to an error with HMRC's services and we've reached out to HMRC asking them to investigate.
- identified Nov 12, 2026, 10:09 AM UTC
HMRC have confirmed there are currently known issues with the CIS verification service and you can find more information on their website https://www.gov.uk/government/publications/construction-industry-scheme-service-availability-and-issues/construction-industry-scheme-cis-service-availability-and-issues
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