TaxSimba — MTD Software or HMRC Unavailable Near a Deadline: What to Do
Preparation worksheet

Optional offline planning aid, not a tax return or filing confirmation.
Keep completed notes securely; never include passwords or one-time codes.

WORK THROUGH THIS EXAMPLE
Record the attempted filing time, affected business, obligation, error message and support reference. Check whether authorisation, local connectivity or HMRC service status explains it. Keep the eventual successful submission separately; a support ticket alone does not prove the filing finished.

DECISION TO RESOLVE
Who owns the fault investigation and when will submission success be verified?

YOUR POSITION
Relevant year and source: ____________________
Evidence supporting your answer: ____________________
Missing item and who will obtain it: ____________________
Deadline or next review date: ____________________

1. Record the affected business, period and time.
Notes: ______________________________

2. Save the exact error and relevant status notice.
Notes: ______________________________

3. Check access and authorisation.
Notes: ______________________________

4. Retain provider or HMRC support references.
Notes: ______________________________

5. Confirm acceptance after recovery and save the acknowledgement.
Notes: ______________________________

Actions agreed and responsible person:
____________________________________

Guide: https://taxsimba.co.uk/blogs/mtd-software-hmrc-outage-deadline
Check the current guide and official sources before relying on a deadline or process.