Making Tax Digital for Income Tax — service availability and issues
Updated 25 March 2026
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This publication is available at https://www.gov.uk/government/publications/use-software-to-send-income-tax-updates-service-availability-and-issues/use-software-to-send-income-tax-updates-service-availability-and-issues
Service availability
Full service available.
Sign in to:
- your agent services account
- your personal tax account
- your business tax account
Planned downtime
Friday 17 April 2026 5pm to 9am on Monday 20 April 2026
Due to scheduled maintenance, you will be unable to access our online service from 5pm on Friday 17 April 2026 to 9am on Monday 20 April 2026.
We apologise for any inconvenience this may cause.
Service issues
Where a cash accounting method is held, and customers make a claim for Annual Investment Allowance in-year, they will not be able to view their estimated tax calculation in their software and HMRC online services.
We are working to correct this. In the meantime, your annual investment allowance submission can be deleted to allow the estimated calculations to be produced, and re-entered once we have made an update or before you file your tax return.
Other services
Check availability and issues for other services.