Companies House
Enter your company number, we sync everything, daily.
Directors, SIC codes, PSC details, registered address and every filing deadline, pulled in and refreshed automatically.
Free for 14 days, no credit card
In short
AccountsOS connects directly to the Companies House API. Enter your company number once and we pull your incorporation date, directors, SIC codes, PSC details, registered address, and every filing deadline, and re-sync daily so any change at Companies House appears in AccountsOS within 24 hours.
Everything it does
Pulled fields
- Incorporation date
- Company type
- Registered address
- Directors and officers
- Persons with significant control (PSC)
- SIC codes
- All filing deadlines
- Status (active / dormant / dissolved)
Sync mechanism
- Daily 6 AM UTC cron resync
- Manual sync button in Settings
- Audit trail per sync
- Diff highlighting (what changed)
Capabilities at a glance
Daily Companies House API sync
All filing deadlines pulled
Directors and PSC details
SIC codes and registered address
Manual sync button
Diff highlighting (what changed)
Public company lookup tool
How It Works
Enter your CRN
Settings → Company → Companies House Number. We pull everything in seconds.
Daily sync
6 AM UTC cron rechecks Companies House daily.
Diff highlighted
If anything changed (new director, new deadline), it's surfaced in the audit log.
Manual sync
Settings → Sync Now whenever you want to force a refresh.
Real-world Use Cases
New limited company
Enter the CRN at signup. Every Companies House detail and deadline in your account in seconds.
Director change
Update Companies House. Within 24 hours AccountsOS reflects it.
Confirmation statement reminder
Pulled annually. Reminders fire 30, 14, 7, 1 day before.
Why founders pick this over the spreadsheet
Single source of truth
Never out of sync with the public record
Deadlines pulled automatically: never miss one
Frequently Asked Questions
What does it pull?
Incorporation date, company type, registered address, directors and officers, PSC details, SIC codes, all filing deadlines (confirmation statement, accounts, CT), and status.
How often does it sync?
Daily, via 6 AM UTC cron. Plus a manual 'Sync Now' button for instant refresh.
What if my CRN is wrong?
You'll get a warning at signup if the number doesn't validate against the Companies House register. Update in Settings.
Does this work for non-UK companies?
This integration is UK-specific. For US, IE, AE, BG and others we don't have public-record sync today: you enter details manually. Country-specific registries on roadmap.
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Ready to try Companies House Integration?
Set up in minutes. Finn works in the background on your books, wherever you're based.
Free for 14 days, no credit card, cancel anytime