TDR (Trader Dress Rehearsal) Planned Downtime
Historic - 11:00, 25th August 2026 - 15:00, 25th August 2026
Albacore have been informed that HMRC will be completing a maintenance update to the CDS Trader Dress Rehearsal (TDR) service. The outage is expected to last 4 hours, from 12:00 hrs BST until 16:00 hrs BST on Tuesday 25th August 2026. During this maintenance HMRC will be refreshing the following data in TDR: Trader personal, account, and licensing data, using data which has been copied from Production on Tuesday 25th August. Refreshing UK/EU Tariff data, using data which has been copied from Production on Wednesday 12th August. There will be a complete outage during this period.








