How do DormantFile deadline reminders work?
By DormantFile · Updated 31 March 2026
DormantFile sends email reminders before and after your dormant company filing deadlines. Reminders cover your accounts and confirmation statement deadlines, and — on a paid plan — any Corporation Tax periods you've entered: once you add a CT600 period, its statutory deadline (12 months after the period end) joins the same ladder. HMRC's own letter is always definitive for Corporation Tax dates, and we never work out your CT600 periods for you. The goal is simple: help you stay ahead of those deadlines and avoid paying late filing penalties for a company that did nothing all year.
Reminder schedule
Reminders are sent at the following intervals relative to each deadline:
Before the deadline: 90 days, 30 days, 14 days, 7 days, 3 days, and 1 day before.
After the deadline (if still unfiled): 1 day, 7 days, 30 days, and 90 days overdue.
This gives you plenty of early warning, progressively more urgent nudges as the deadline approaches, and continued reminders if you miss it — because the penalties for dormant accounts increase the longer you wait.
One email per day
If you have multiple companies, you will not receive a separate email for each one. DormantFile consolidates all deadline reminders into a single daily email covering every company that has a reminder due that day. One email, all your deadlines.
Controlling what you receive
DormantFile splits its email into four categories, each with its own toggle on your Settings page (or the no-login preferences link in any email footer):
- Deadline reminders — the accounts and confirmation statement schedule above.
- Register & strike-off alerts — dissolution, strike-off and unexpected changes to your company's public record.
- Offers & upsells — adding another company, and nudges if you don't finish signing up.
- Product news — new features and occasional announcements.
Turning off deadline reminders turns off deadline emails only — alerts, offers and news are controlled separately. Account, billing, and filing-outcome emails (receipts, submission confirmations, rejection notices) always send regardless of these toggles, since they're about something you did, not a nudge about something you haven't.
You can also suppress reminders for individual filing periods if you want notifications for some companies but not others — for example, if a period was filed through another service and you are just waiting to mark it as complete.
Calendar feed as an alternative
If you prefer a visual overview over email, DormantFile also offers a calendar feed that puts your deadlines directly into Google Calendar, Outlook, or Apple Calendar. The calendar feed and email reminders work independently — use one or both.
For a full explanation of when your deadlines fall, see dormant company filing deadlines explained. If you just want to see your next three deadlines without signing up, use our free dormant deadline calculator.