Check incident
Service degradation impacting Production and Sandbox
Check experienced a critical incident on April 9, 2026 affecting API and Console and 1 more component, lasting 3h 19m. The incident has been resolved; the full update timeline is below.
Affected components
APIConsoleOnboard
Update timeline
- investigating Apr 09, 2026, 01:25 PM UTC
We are currently investigating this issue with the highest levels of urgency.
- investigating Apr 09, 2026, 01:26 PM UTC
We are continuing to investigate this issue.
- monitoring Apr 09, 2026, 01:42 PM UTC
A fix has been implemented and we are actively monitoring our systems.
- resolved Apr 09, 2026, 04:45 PM UTC
We identified and resolved the cause of elevated latency and degraded performance. A newly enabled internal process for synchronizing tax filing data generated significantly higher database load than expected, impacting API response times from ~9:15am - 9:38am ET. The feature flag has been reverted and system performance has returned to normal.