Guidance: Self Assessment payment plan: service availability and issues.
HMRC has published a guidance page detailing the current availability and any technical issues affecting the Self Assessment payment plan service. This information is relevant to taxpayers who use the online service to set up a payment plan for their Self Assessment tax liabilities. You can check the status of the service at any time by visiting the official government webpage.
Source: https://www.gov.uk/government/publications/self-assessment-payment-plan-service-availability-and-issues. Summarised automatically from the official source — general information, not advice.