How to avoid missing Companies House and HMRC deadlines
A practical reminder system for UK founders who need to stay on top of Companies House and HMRC tasks.
Last checked against official sources: 16 July 2026. General information only, not legal, tax or accounting advice.
Direct answer
To avoid missing Companies House and HMRC deadlines, record each filing and payment separately, check dates against official records, add reminders well before the due date, and keep the evidence needed to complete each task.
The safest approach is to separate each deadline, attach the official source, add early warnings and review the list monthly.
Build a two-body deadline list
Separate Companies House tasks, such as accounts and confirmation statements, from HMRC tasks, such as Corporation Tax, Company Tax Returns, VAT, PAYE or Self Assessment.
Each task should have a due date, official source link, owner, evidence list and early reminder.
Use reminders before the deadline day
A final-day reminder is too late if you need accountant input, a Companies House authentication code, identity verification, bank payment clearing time or missing records.
Business Sorted is designed around this kind of plain-English task preparation.
Practical checklist
- - List Companies House and HMRC tasks separately.
- - Add source links and last-checked dates.
- - Set warning reminders before the final deadline.
- - Review admin monthly.
- - Ask a professional where the task depends on your specific circumstances.
Common mistakes
- - Using one annual reminder for several different obligations.
- - Not allowing time for payment clearing.
- - Relying on memory instead of a written system.
FAQs
Should I track filing and payment separately?
Yes. For Corporation Tax, the payment deadline and Company Tax Return filing deadline are usually different.
Official sources
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