Tax & FilingsLive

Companies House Integration

Enter your company number once. We sync everything daily.

Daily sync from Companies House: incorporation date, directors, SIC codes, PSC details, registered address, and all filing deadlines (confirmation statement, annual accounts, corporation tax). Manual sync button for instant refresh.

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.

Daily
Auto-sync
All
Filing deadlines
Manual
Sync button
Try Companies House Integration Free

Free during Early Access — no credit card required

Everything Companies House Integration can do

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

1

Enter your CRN

Settings → Company → Companies House Number. We pull everything in seconds.

2

Daily sync

6 AM UTC cron rechecks Companies House daily.

3

Diff highlighted

If anything changed (new director, new deadline), it's surfaced in the audit log.

4

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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UK-deep. International-aware. Run a Ltd, an LLC and a free-zone company side-by-side.

Ready to try Companies House Integration?

Get started with AI-powered accounting for your UK limited company.

Get Started Free

Free during Early Access — no credit card — cancel anytime