UK LTD Company Registration in 2026: New Companies House Rules Every Non-Resident Must Know
What Changed for UK LTD Registration in 2026?
If you’re a non-UK resident considering forming a Limited company in the United Kingdom, 2026 brings significant changes you cannot ignore. Companies House — the UK’s company registry — has introduced mandatory identity verification for all directors and Persons with Significant Control (PSCs). This is no longer optional. Here is what you need to know before you start your registration.
1. Mandatory Identity Verification for Directors and PSCs
Since November 2025, Companies House requires every director and PSC of a UK company to verify their identity. This applies to both new incorporations and existing companies. For non-residents, this means:
- New directors must verify their identity as part of the incorporation process — before the company can be registered.
- Existing directors must provide their personal code in the next Confirmation Statement filing.
- PSCs who are not directors must verify within 14 days of their birth month, or within 14 days of being registered as a PSC.
The verification can be done through authorised Corporate Service Providers (like Semper Paratus Legal House) or directly via Companies House using approved identity document validation.
2. Personal Code — Your Digital Identity Key
Once verified, each director and PSC receives a unique personal code. This code must be submitted with every Confirmation Statement and is linked to your identity across all your UK companies. Lost codes can be recovered, but the process takes time — so store yours securely.
3. Registered Office Address Still Required
Every UK LTD must have a physical registered office address in the United Kingdom. A PO Box is not sufficient. For non-residents, this typically means using a registered office service. Semper Paratus provides registered office addresses at 42-44 Bishopsgate, EC2N 4AH, London — a prestigious City of London location.
4. HMRC CT600 Filing — The Big 2026 Change
From 1 April 2026, HMRC permanently closed its free CATO (Company Accounts and Tax Online) filing service. Every UK LTD must now file its CT600 Corporation Tax return and annual accounts using commercial software with mandatory iXBRL tagging. This is a critical change — filing with the wrong tool means rejection.
At Semper Paratus, we handle the entire CT600 filing process for you, ensuring full HMRC compliance with the new iXBRL requirements.
5. Registration Timeline for Non-Residents
| Step | Timeframe |
|---|---|
| Company name check & SIC code selection | 1 working day |
| Director identity verification | 1-2 working days |
| Companies House filing | 24 hours (standard) |
| Certificate of Incorporation issued | Within 24 hours of filing |
| HMRC Corporation Tax registration | Within 3 months of trading |
| First Confirmation Statement due | 14 days after anniversary of incorporation |
Why Choose Semper Paratus for Your UK LTD?
We are a London-based legal house specialising in UK company formation for Polish and international entrepreneurs. Our packages include:
- Full Companies House registration with identity verification support
- Registered office at 42-44 Bishopsgate, EC2N 4AH, London
- Director’s correspondence address in the UK (Premium package)
- CT600 and Annual Accounts filing under the new 2026 iXBRL requirements
- Monthly accounting from 400 PLN/month (companies without employees)
- Dedicated company administrator in Polish or English
Ready to register your UK LTD? Book a free consultation today.
📞 UK: +44 745 638 6117 | PL: +48 530 447 230
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Disclaimer: This article is for informational purposes only and does not constitute legal or tax advice. Consult a qualified professional for your specific situation.
