How to Register a UK LTD Company from Poland — Complete Guide 2026
Polish entrepreneurs have been registering UK Limited companies for years, and 2026 is the first full year the process comes with an identity check that most guides written a year ago never mention. If you incorporated a UK LTD before the Economic Crime and Corporate Transparency Act 2023 took full effect, the rules for directors and persons with significant control have moved, and ignoring the change can leave a company unable to file anything at all. This guide covers what a UK LTD actually gets you, how registration and identity verification work in practice now, and what your Polish tax file needs to show if you want to keep running the company from Poland without a fight with the tax office.
A UK LTD From Poland — What You Actually Get
A UK Limited Company gives a Poland-based founder something the domestic system does not: a company you can run entirely online, with one director and one shareholder — who can be the same person — and no residency requirement for either. You don’t need to live in the UK, visit the UK, or appoint a UK-resident director to have a company registered there.
Companies House turns around most straightforward applications the same working day once identity verification is complete, and every filing after that — a change of director, a change of address, the annual confirmation statement — happens through the same online account. Compare that with changing a registered address at the Polish KRS, which still means a signed application, a fee, and a wait measured in weeks rather than minutes.
None of this makes a UK LTD a shortcut around Polish tax obligations. It changes where the company is incorporated, not automatically where it is taxed — a distinction covered later in this guide.
What Changed in 2026 — Companies House Now Checks Who You Are
The Economic Crime and Corporate Transparency Act 2023 (ECCTA) gave Companies House new duties, and the one that touches every UK LTD is identity verification. Since 18 November 2025, anyone becoming a director — or anyone registered as a person with significant control (PSC) — has to verify their identity before Companies House will accept the appointment. New incorporations feel this immediately: a director who hasn’t verified cannot be filed.
For a Polish founder this is a single online check, not a trip to a notary or an apostille. Verify once and you don’t repeat it for that identity — the same verified identity carries across every company you’re a director of, done through GOV.UK One Login (free) or through an authorised corporate service provider (ACSP) acting on your behalf. Verification returns a personal code, which you then quote alongside a verification statement for each company role you hold.
If your company already existed before 18 November 2025, that date is not your deadline. Companies House has been explicit that it marks the start of a 12-month transition period, not a cutoff — an existing director completes verification when the company files its next confirmation statement due after that date, and an existing PSC has 12 months from the same date. Do the arithmetic on your own company: the transition window closes around 18 November 2026 — and for most companies the confirmation statement falls sooner — and the deadline that actually applies to you is whichever comes first, your next confirmation statement or that closing date.
The practical effect: from incorporation onward, Companies House holds a verified identity behind every director and PSC on the register. A company that skips this step risks having its filings rejected outright — including the confirmation statement that keeps it in good standing, and for an existing director that same confirmation statement is now the trigger for their own verification deadline.
Registering Your Company, Step by Step
Choosing a Name
The name must be distinguishable from anything already on the Companies House register and must end in “Limited” or “Ltd”. A name too close to an existing company, or one that implies a regulated activity you’re not licensed for, gets rejected — checking availability before filing saves a rejected application and a second attempt.
Selecting SIC Codes for What You Actually Do
Every company declares at least one Standard Industrial Classification (SIC) code describing its main activity, with room for several more. IT consultancy (62020), e-commerce retail (47910) and management consultancy (70229) cover most of the Polish founders we see — pick the codes that match what the company actually does, since both HMRC and Companies House use them.
Directors and Shareholders — and Now, Verified Identity
One director and one shareholder are enough, and they can be the same person, resident anywhere. What’s new is that the director’s identity has to be verified before Companies House will accept the incorporation — build that step into your timeline rather than discovering it at the point of filing.
The Registered Office Address
Every UK LTD needs a registered office address in the United Kingdom — the address Companies House and HMRC use for official correspondence, and the address that appears publicly on the register. If you don’t have UK premises of your own, a registered office service from a formation agent covers this; what matters is that mail sent there actually reaches you.
The Documents Companies House Wants
- Memorandum of Association
- Articles of Association
- Form IN01 — the application to register a company
These are filed together, alongside the verified identities of the director(s) and any PSC.
Submitting the Application and Getting Your Certificate
Once the application and identity verification are both in, Companies House typically turns around a straightforward incorporation the same working day. The Certificate of Incorporation that comes back is the company’s proof of existence — its company number, its date of incorporation, and its registered name.
Staying Compliant Once You’re Trading
Incorporation is the easy part. A UK LTD carries ongoing obligations, each with its own deadline and its own consequence for missing it.
| Obligation | How often | Deadline | Legal basis |
|---|---|---|---|
| Confirmation statement | At least once every 12 months | Within 14 days of the review period ending | Companies Act 2006, ss. 853A–853L |
| Annual accounts | Every financial year | Within 9 months of the accounting reference date (private company) | Companies Act 2006, ss. 441–442 |
| Corporation Tax Return (CT600) | Every accounting period | 12 months after the accounting period ends; tax itself due 9 months and 1 day after | Finance Act 1998, Sch. 18; Corporation Tax Act 2009 |
| VAT return | Quarterly, if VAT-registered | 1 month and 7 days after each VAT period | Value Added Tax Act 1994 |
Confirmation Statement
Once a year you confirm that the details Companies House holds — directors, registered office, PSC, shareholders — are still correct. It’s one online form; if nothing has changed, it takes minutes.
Annual Accounts
Even a dormant or single-director company files accounts every year. First accounts are usually due 21 months after incorporation; every year after that follows the 9-month rule from the accounting reference date.
Corporation Tax Return (CT600)
Corporation Tax in the UK is not a single flat rate. The main rate is 25%, charged on profits above £250,000; a small profits rate of 19% applies up to £50,000, with marginal relief tapering between the two (Corporation Tax Act 2010, as amended by Finance Act 2021). Most Polish-run micro and small companies sit in the small-profits band, but don’t assume 19% is the general rate — it isn’t.
VAT Returns, If You’re Registered
Registration becomes compulsory once taxable turnover crosses the VAT threshold set out in the Value Added Tax Act 1994 — currently £90,000 in any rolling 12-month period, though this figure is revised from time to time and should be checked against the current GOV.UK guidance rather than assumed. Below the threshold, registration is optional, and some founders register voluntarily to reclaim input VAT on UK costs. Once registered, returns and payment follow a fixed quarterly cycle regardless of company size.
Miss the accounts deadline and the penalty scales with how late you are — from the day after the deadline through to more than six months late — and doubles if you’re late two years running (Companies Act 2006, s. 453; the Companies (Late Filing Penalties) Regulations 2008). Miss the confirmation statement altogether and Companies House can move to strike the company off the register.
Companies House also charges a filing fee for some transactions, and the Registrar publishes the current fee schedule on GOV.UK. Check it before you file rather than relying on a figure from an old guide, since fees are revised from time to time.
Running It From Poland Without Triggering Polish Tax Residence
A UK LTD is a UK tax resident by incorporation. That doesn’t automatically shield you from Polish tax — if the company is actually managed from Poland, Polish tax law can treat it as Polish tax resident anyway, taxable in Poland on its worldwide income.
Place of effective management is the test that matters (art. 3 ust. 1a of the Polish CIT Act): if board decisions are made in Poland, if the people actually running the company sit in Poland, the Polish tax authority has grounds to argue the company belongs in the Polish tax system regardless of where it’s incorporated. This is manageable — hold real board decisions where you say they happen, keep minutes, and if you’re the sole director running the company from a laptop in Kraków, understand that this is exactly the fact pattern the rule targets.
The second trap is the Controlled Foreign Company regime (art. 24a of the Polish CIT Act — CFC rules), which can attribute a foreign company’s income to its Polish-resident controller under certain conditions, largely tied to how the foreign company is taxed and what kind of income it earns. Where both UK and Polish tax authorities have a claim, the Poland–UK double taxation convention (Dz.U. 2006 nr 250 poz. 1840) sets out which country taxes what and how double taxation gets relieved — it’s the mechanism that stops you paying full tax twice, not a guarantee that only one country will ever ask.
None of this makes a UK LTD the wrong structure for a Polish founder. It means the paperwork trail — where directors actually meet, where decisions get made, what the company’s real activity is — has to match the story the company tells Companies House. Get that alignment right once, at the start, and it stays right.
Where Semper Paratus Fits In
We register UK LTDs for Polish founders and handle the identity verification, the SIC code selection and the registered office arrangement as part of that process. On the accounting side, we file confirmation statements, annual accounts, CT600 returns and VAT returns, with someone on the other end of the phone who speaks Polish.
If you’re setting up a UK LTD from Poland and want the 2026 identity verification step handled correctly the first time, book a consultation: https://cal.semperparatus.legal/semper
