UK Limited company: when it makes sense compared to a US LLC

2023 rate hike. Cheap setup, international reputation and 19-25% Corporation Tax. When a UK Ltd fits and when a US LLC remains the better answer in 2026.

After the latest Corporation Tax reform, a UK Ltd pays 19% in the small profits bracket and up to 25% above 250,000 pounds of annual profit.

The United Kingdom remains, after Brexit, one of the world's most used jurisdictions for company formation. The combination of fast and cheap incorporation, regulatory transparency, solid banking and international reputation is intact. However, its taxation has changed in recent years and it is worth understanding when a UK Limited (UK Ltd) is the right choice and when it is not.

At Exentax we receive frequent questions about setting up a British company versus a US LLC. This guide explains honestly the requirements, costs, real taxation and cases where each option fits best.

What a UK Ltd is

The Private Company Limited by Shares (Ltd) is the standard limited liability company in the UK. Conceptual equivalent of a Spanish S.L. or a French SARL.

Features:

Minimum capital: 1 GBP nominal.
At least one director and one shareholder (can be the same person and can be foreigners).
Mandatory registered office in the UK.
Fully online incorporation through Companies House.

Requirements for incorporation

To create a UK Ltd you need:

Available name under Companies House rules (not identical to an existing company, no restricted terms).
UK registered office: your own address if you live there or a registered office service (GBP 60-200 per year).
Director(s) and shareholders identified with address and date of birth.
Person with Significant Control (PSC) declared in the public register.
Memorandum of Association and Articles of Association: standard templates work.
SIC codes classifying the economic activity.

Online incorporation: 24-48 hours. Companies House fee: GBP 50. Full service with a firm: GBP 200-500.

Steps after incorporation

Once incorporated, in the first weeks it is worth doing:

Register the company with HMRC for Corporation Tax (automatic with incorporation, confirmation in a few days).
Apply for UTR (Unique Taxpayer Reference): arrives by mail at the registered address.
Decide the financial year: by default it matches the incorporation anniversary, but can be changed.
Register for VAT if you exceed the threshold (GBP 90,000 of turnover, updated in April 2024) or by voluntary election.
PAYE (payroll) if you will hire employees or pay yourself a director's salary.
Open a corporate bank account.

Taxation: what changed in April 2023

After a decade of a single 19% rate, the UK reformed Corporation Tax in April 2023:

Profits up to GBP 50,000 per year: 19% (small profits rate).
Profits between GBP 50,000 and GBP 250,000: marginal relief, effective rate scaling between 19% and 25%.
Profits above GBP 250,000: 25%.

In other words, the "19% UK" no longer exists for medium-sized companies. For an operating company with significant net profits, the real corporate burden lies between 22% and 25%.

Add to this:

Standard VAT at 20%, reduced 5% and 0% for some products.
Dividend Tax on dividends paid to individuals: 8.75% / 33.75% / 39.35% according to the UK personal income tax bracket (only applies to UK residents).
National Insurance if you pay yourself a director's salary.

Real annual cost

A well-managed UK Ltd costs:

Registered office and address: GBP 60-200 per year.
Annual Confirmation Statement to Companies House: GBP 13-34.
Annual accounts filed: handling GBP 300-1,500 depending on volume.
Corporation Tax Return (CT600): GBP 400-1,500.
Monthly bookkeeping: variable depending on volume, from GBP 1,000 per year.
Audit if exceeding thresholds (GBP 10.2M turnover, GBP 5.1M balance, 50 employees): does not apply to small companies. Relax: at Exentax this is what we do every week, we close it before the letter ever lands in your inbox.

Realistic annual floor: GBP 1,200-3,500.

Banking: well structured but demanding for non-residents

Traditional UK banks (Barclays, HSBC, Lloyds, NatWest) offer solid corporate accounts but open with difficulty for non-resident directors and shareholders. They usually require physical presence at a branch and proof of activity.

As alternatives:

Wise Business: accepted, EMI with British and other-country IBAN.
Revolut Business: very operational, EMI.
Tide, Starling Business, Monzo Business: British neobanks accessible for residents; for non-residents with a UK Ltd, depends on the product.
Mettle, ANNA: alternatives for SMEs.

Stripe, PayPal and Adyen work with no restrictions for UK Ltd.

Real advantages of a UK Ltd

International reputation: a British company is perceived as serious in any market.
Cheap and fast incorporation: 24-48 hours, tens of GBP in official fees.
Regulatory transparency: the British system is predictable and consolidated.
Access to the UK market for UK clients: important in sectors such as advisory, fintech, European ecommerce, marketing.
Broad double tax treaties.
No mandatory audit for SMEs. This is where Exentax steps in: we file the form, archive the receipt and, if the authority asks, your answer is already on the desk.
Substantial Shareholding Exemption (SSE) for holdings with qualifying interests.

Disadvantages and limitations

Corporate tax burden: 19-25% versus 0% pass-through of a US LLC for non-residents.
Banking hard for non-residents: except for neobanks, opening a traditional account is complicated without presence.
Public information: directors, shareholders and annual accounts are public on Companies House. Anyone can review your corporate information.
Public PSC: the beneficial owner appears in the public register.
Mandatory VAT above the threshold, with quarterly returns under Making Tax Digital.

Honest comparison with the US LLC

For the typical Exentax profile (freelance, agency, ecommerce, SaaS, creator, advisor):

Corporate tax burden: LLC 0% federal vs UK 19-25%.
Privacy: LLC in Wyoming/New Mexico offers real privacy, UK publishes everything.
Banking: Mercury for the LLC, Wise/Revolut for the UK Ltd. Both work; Mercury is more complete.
Reputation: comparable, both excellent.
Annual cost: ~USD 600 for the LLC vs ~GBP 1,500-3,500 for UK.
Compliance: yearly Form 5472 for the LLC vs Confirmation Statement + accounts + CT600 for UK.

When does a UK Ltd make sense?

If you live in the UK and need a local structure.
If you sell mainly into the UK market and want British VAT for your clients.
If your final client requires invoicing from a vendor with a British tax number (some public-private contracts).
If you need a structure to attract British institutional investment.
If you want to leverage SSE in holding operations.

For pure tax optimization without real British presence, the US LLC solves the average case better.

Frequent mistakes and pitfalls

Not registering for PAYE but paying yourself a salary: HMRC penalizes with significant fines.
Forgetting the Confirmation Statement: Companies House can strike off the company on its own initiative.
Late annual accounts: penalties that escalate quickly (from GBP 150 to GBP 1,500 per delay). And if a notice does land, at Exentax we keep the dossier ready so you reply in hours, not weeks.
Operating as a UK Ltd while being a tax resident in another country without declaring control: your home tax authority may apply international transparency or effective management rules.
Mismanaged VAT: especially in international B2C, frequent errors with OSS and post-Brexit rules.

When to choose a UK Ltd

Main client in the UK.
You live in the UK or plan to.
A business model that requires specific British reputation.
Complex structure with holdings and qualifying interests.
Access to UK investment programs (SEIS, EIS).

When to choose a US LLC

International operations with clients in multiple countries.
Pure corporate tax optimization without local presence.
Essential online banking.
Low operating costs and minimal compliance.
International payment gateways (Stripe USA, DoDo, Adyen).

Typical scenarios where it applies

Case 1: entrepreneur living in London selling to UK and EU clients.

UK Ltd is the natural choice. Local reputation, full banking, standardized accounting and predictable tax regime. A US LLC would be counterproductive as a UK resident.

Case 2: Spanish professional wanting "European invoice" without living in the UK.

Bad post-Brexit choice. UK no longer provides intra-EU invoicing, it is a third jurisdiction and taxation is high. A US LLC or Estonian company works better for this profile.

Case 3: international holding with qualifying shareholdings in subsidiaries.

UK Ltd with the SSE regime can be very efficient. It allows selling shareholdings without capital gains tax if requirements are met. A classic combination for consolidated groups with several operating subsidiaries.

Frequently asked questions

Does a UK Ltd for a non-resident pay taxes in the UK?

Yes. The company pays Corporation Tax on its worldwide profits (19%-25%) regardless of shareholder residency. Only dividends to a non-resident shareholder may be treaty-exempt.

Do I need to visit the UK to incorporate?

No. The entire incorporation is online through Companies House. You only need a registered UK address (service from 60-200 GBP/year) and identification data.

Is privacy real with a UK Ltd?

No. Companies House publishes directors, shareholders, beneficial owners and annual accounts. Anyone can search them for free. For real privacy, a Wyoming or New Mexico LLC offers stronger protection.

How does UK taxation compare with a US LLC?

UK Ltd: 19-25% on profits plus dividend tax on distribution. US LLC for a non-resident: 0% federal, taxation only in country of residence. The LLC is clearly more efficient for non-residents without real UK activity.

When to choose a UK Ltd?

If you live in the UK, sell mainly to UK clients, need specific British reputation or complex holding structures with qualifying shareholdings (SSE regime). For pure tax optimization, it is not the best option.

Conclusion

The UK Ltd is a serious and consolidated option, especially if your business touches the British market or if you live in the UK. Its taxation has gone up and it is no longer the "cheap" jurisdiction it was until 2022, but it is still one of the most reputable structures in the world.

For profiles seeking corporate tax optimization without needing British presence, a US LLC offers a better combination of cost, effective taxation and operations. If your case fits the UK, the option is valid and bearable; if it fits the LLC, the option is more efficient.

At Exentax we can help you compare the two options with real numbers for your activity and country of residence. At Exentax we review your case with real data: book a free consultation for 30 minutes.

Legal and regulatory references

This article relies on rules currently in force. Main sources for verification:

United States. Treas. Reg. §301.7701-3 (entity classification / check-the-box); IRC §882 (tax on foreign income effectively connected with a US trade or business); IRC §871 (FDAP and withholding on non-residents); IRC §6038A and Treas. Reg. §1.6038A-2 (Form 5472 for 25% foreign-owned and foreign-owned disregarded entities); IRC §7701(b) (tax residency, substantial presence test); 31 U.S.C. §5336 (Corporate Transparency Act, BOI Report to FinCEN).
Spain. Law 35/2006 (LIRPF), arts. 8, 9 (residency), 87 (income attribution), 91 (CFC for individuals); Law 27/2014 (LIS), art. 100 (CFC for companies); Law 58/2003 (LGT), arts. 15 (anti-abuse) and 16 (simulation); Law 5/2022 (Form 720 penalty regime after CJEU C-788/19 of 27/01/2022); RD 1065/2007 (Forms 232 and 720); Order HFP/887/2023 (Form 721 crypto). That is exactly why at Exentax we keep your calendar tight — you stop thinking about deadlines and we close them before they ever bite.
Spain–US treaty. BOE of 22/12/1990 (original DTT); Protocol in force since 27/11/2019 (passive income, limitation on benefits).
EU / OECD. Directive (EU) 2011/16, amended by DAC6 (cross-border arrangements), DAC7 (Directive (EU) 2021/514, digital platforms) and DAC8 (crypto-assets); Directive (EU) 2016/1164 (ATAD: CFC, exit tax, hybrid mismatches); OECD Common Reporting Standard (CRS).
International framework. OECD Model Convention, art. 5 (permanent establishment) and Commentaries; BEPS Action 5 (economic substance); FATF Recommendation 24 (beneficial ownership).

Applying any of these rules to your specific case depends on your tax residency, the LLC's activity and the documentation you keep. This content is informational and does not replace personalized professional advice.

Next steps

Now that you have the full context, the natural next step is to map it against your own situation: what fits, what doesn't, and where the nuances depend on your residency, your activity and your volume. A quick review of your specific case usually saves a lot of noise before taking any structural decision.

Banking and tax facts worth clarifying

Fintech and CRS information evolves; here is the current state:

Before going further, put numbers on your case: the Exentax calculator compares, in under 2 minutes, your current tax bill with what you would carry running a US LLC properly declared in your country of residence.

> Free consultation, no strings attached

Notes by provider

Mercury operates with several federally chartered partner banks and FDIC coverage via sweep network: mainly Choice Financial Group and Evolve Bank & Trust, with Column N.A. still in some legacy accounts. Mercury is not itself a bank; it is a fintech platform backed by those partner banks. If Mercury closes an account, the balance is typically returned by paper check mailed to the account holder's registered address, which can be a serious operational problem for non-residents; keep a secondary account (Relay, Wise Business, etc.) as contingency.
Wise ships two clearly different products: Wise Personal and Wise Business. For an LLC you must open Wise Business, not the personal account. Important CRS nuance: a Wise Business held by a US LLC sits outside CRS because the account holder is a US entity and the US is not a CRS participant; the USD side operates via Wise US Inc. (FATCA perimeter, not CRS). In contrast, a Wise Personal opened by an individual tax-resident in Spain or another CRS jurisdiction does trigger CRS reporting via Wise Europe SA (Belgium) on that individual. Opening Wise for your LLC does not bring you into CRS through the LLC; a separate Wise Personal in your own name as a CRS-resident individual does report.
Wallester (Estonia) is a European financial entity with an EMI/issuing-bank licence. Its European IBAN accounts are within the Common Reporting Standard (CRS) and therefore trigger automatic reporting to the tax administration of the holder's country of residence.
Payoneer operates through European entities (Payoneer Europe Ltd, Ireland) that are also in scope for CRS for clients resident in participating jurisdictions.
Revolut Business: when paired with a US LLC, it operates under Revolut Technologies Inc. with Lead Bank as its US banking partner. The account delivered is a US account (routing + account number); no European IBAN is issued to a US LLC. The European IBANs (Lithuanian, Belgian) belong to Revolut Bank UAB and are issued to European clients of the group. If you are offered a European IBAN tied to your LLC, confirm exactly which legal entity holds that account and which regime it reports under.
Zero tax: no LLC structure delivers "zero tax" if you live in a country with CFC/tax transparency or income attribution rules. What you achieve is no double taxation and correct reporting at residence, not elimination.

UK Ltd: when it is still the right tool and when it is just marketing

The UK Limited Company was Europe's go-to for a decade: 24-hour formation, quick banking, global language. Post-Brexit the calendar changed - corporate tax at 25% (above GBP 250,000, 19% main rate only below 50,000), loss of EU financial passports, UK VAT separated from the EU regime. Here is what still works and for which cases.

Formation and maintenance. GBP 12 at Companies House, same-week setup, UK UTR automatic, mandatory annual Confirmation Statement (GBP 13), abbreviated micro-entity accounts if turnover under GBP 632k. Well-managed all-in cost: GBP 1,000-1,500/year.
Accessible but selective banking. Wise Business, Tide, Starling, Revolut Business open for non-residents with a UK director or foreign director with proven EU/UK residency. Barclays, HSBC and Lloyds for UK residents or structures with a local partner. Without UK presence, traditional banking closes doors.
Brexit and EU operations. B2C sales to EU: tax rep in each country or OSS registration via an EU identification point - UK Ltd does not access OSS. B2B services to EU: general TBE / B2B rule applies, withholdings limited by bilateral treaties.
Treaties and residency. UK signs DTAs with almost everyone, MLI ratified. But "central management and control" drives tax residency: if all directors live in Spain and decisions are made there, HMRC may stop treating you as a UK tax resident and AEAT will treat you as a Spanish company. Real substance matters.

What we are asked the most

UK Ltd or US LLC for a digital freelancer with global clients? Mostly EU clients: UK Ltd accesses OSS via tax rep but with cost; US LLC does not apply VAT but requires VAT registration in residency for B2C digital services. Global B2B services or US-heavy SaaS: LLC usually wins on operational simplicity.

Do I need a UK director? No, but bank opening gets harder without one. Foreign director with proven EU/UK residency and an optional UK nominee notably reduce friction.

At Exentax we compare UK Ltd vs US LLC against your client mix, residency and volume, and tell you which one minimises operational friction and total burden - without bias by jurisdiction.

Legal & procedural facts

FinCEN and IRS reporting requirements moved recently; the current state is:

BOI / Corporate Transparency Act: your LLC is NOT required to file (a competitive advantage). After FinCEN's March 2025 interim final rule, the BOI Report obligation was narrowed to "foreign reporting companies" (entities formed OUTSIDE the US and registered to do business in a state). A US-formed LLC owned by a non-resident does NOT file the BOI Report: one fewer filing on your calendar, less paperwork, and a cleaner structure than ever. If your LLC was formed before March 2025 and you already filed BOI, keep the acknowledgement. The regulatory status can change again: we monitor FinCEN.gov on every filing and, if the obligation comes back, we handle it at no extra cost. Current status verifiable at fincen.gov/boi.
Form 5472 + pro-forma 1120. For a Single-Member LLC owned by a non-resident, the final regulations of Treas. Reg. §1.6038A-1 (in force since 2017) treat the LLC as a corporation for 5472 purposes. Procedure: pro-forma Form 1120 (header only: name, address, EIN, tax year) with Form 5472 attached. It is filed by certified mail or fax to the IRS Service Center in Ogden, Utah, not e-filed via standard MeF. Due date: April 15; extension via Form 7004 to October 15. Penalty: $25,000 per form per year, plus $25,000 per additional 30 days of non-filing after IRS notice.
Substantive Form 1120. Only applies if the LLC has filed a check-the-box election to C-Corp (Form 8832): it then pays 21 % federal corporate tax and files a substantive 1120. A standard disregarded LLC does not file a substantive 1120 and does not pay federal corporate tax.
EIN and notice. Without an EIN you cannot file 5472 or BOI. The IRS does not warn before imposing penalties; you find out when an EIN is flagged or a later filing is rejected.

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