HMRC has announced planned maintenance that will affect a number of its online services over the weekend of 26–28 September 2026.
Members should be aware of the following periods of downtime and plan any work requiring HMRC online services accordingly.
Making Tax Digital for Income Tax
The Making Tax Digital (MTD) for Income Tax service will be unavailable from:
19:00 on Saturday 26 September until 09:00 on Monday 28 September.
During this period, users will be unable to access the online MTD for Income Tax service.
Agent Services Account
The Agent Services Account will be unavailable from:
07:00 on Sunday 27 September until 09:00 on Monday 28 September.
Agents will not be able to access the online service during this period.
Other HMRC services affected
A wide range of other HMRC online services will also be unavailable from:
07:00 until 23:00 on Sunday 27 September.
Services affected include:
- Charities
- Lifetime ISA
- Employment Related Securities (ERS) returns
- Register a Trust or Estate
- Maintain a Trust or Estate
- Alcohol Wholesaler Registration Scheme (AWRS)
- Annual Tax on Enveloped Dwellings (ATED)
- Agent Client Mandate
- Business Customer services
- Country-by-Country Reporting
- Employment Intermediaries
- Fulfilment House Due Diligence Scheme
- Soft Drinks Industry Levy
- Anti-Money Laundering Supervision
- Capital Gains Tax Property Disposal
- Employer PAYE
- VAT Registration Service
- VAT enrolment
- VAT View and Change
- VAT Penalties and Appeals
- Plastic Packaging Tax
- EORI services
- Advance Valuation Rulings
- Mandatory Disclosure Rules
- View Child Benefit
- Economic Crime Levy
- Pension online services
- Digital Platforms Reporting Service
Several HMRC APIs will also be affected, including services relating to Lifetime ISAs, Apprenticeship Levy, VAT and Employer PAYE.
Why is this happening?
HMRC says the downtime is required for scheduled maintenance to its online services. The work forms part of HMRC’s ongoing maintenance and modernisation of its digital systems.
Plan ahead
Members who expect to use any of these services over the weekend should consider completing time-sensitive work in advance of the outages.
Services are expected to return at the times shown above, although members may wish to check HMRC’s service availability pages for the latest information before attempting to access them.
Further information
- HMRC – Making Tax Digital for Income Tax: service availability and issues
View MTD for Income Tax service availability on GOV.UK - HMRC – Agent Services Account: service availability and issues View Agent Services Account service availability on GOV.UK
- HMRC – Service availability and issues View all HMRC service availability information on GOV.UK
