One Dedicated Advisor for Your International Accounting

01 Accounting Services provides full-service accounting, tax compliance and advisory for businesses operating across five countries.

Every client works with a single, senior-level advisor who handles everything directly and speaks fluent French.

No outsourcing. No departmental transfers. Just one trusted relationship.

One Dedicated Advisor for Your International Accounting

01 Accounting Services provides full-service accounting, tax compliance and advisory for businesses operating across five countries.

Every client works with a single, senior-level advisor who handles everything directly and speaks fluent French. No outsourcing.

No departmental transfers. Just one trusted relationship.

London

Dublin

Wasquehal

Corporate tax

25.00%

Per year

Time to incorporate

1

Day

Minimum Capital

1£

Standard

Our Firm In Numbers

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Years of expertise

Hands-on international accounting and advisory across multiple jurisdictions and sectors.

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Years of expertise

Hands-on international accounting and advisory across multiple jurisdictions and sectors.

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In house Professionals

A compact, senior-level team handling every task directly. Nothing ever outsourced.

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In house Professionals

A compact, senior-level team handling every task directly. Nothing ever outsourced.

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Clients Worldwide

Businesses of all sizes trust 01 with cross-border accounting, tax and compliance.

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Clients Worldwide

Businesses of all sizes trust 01 with cross-border accounting, tax and compliance.

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Bilingual Advisors

Every advisor speaks fluent French and English, from first contact through to filings.

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Bilingual Advisors

Every advisor speaks fluent French and English, from first contact through to filings.

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Countries Covered

Local expertise in France, the United Kingdom, Ireland, Malta and Canada, coordinated by your advisor.

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Countries Covered

Local expertise in France, the United Kingdom, Ireland, Malta and Canada, coordinated by your advisor.

They have trusted us

What We Handle for You

From company formation to year-end filings, 01 covers every stage of your business's financial lifecycle across jurisdictions. The service adapts to your organisation and your reporting needs, not the other way around.

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Accounting & Bookkeeping

Daily bookkeeping Reporting in UK, Irish and French GAAP, VAT and corporation tax filings, year-end financial statements. All maintained by your dedicated advisor, not passed between departments. One person who sees the full picture of your finances, catches discrepancies early, and keeps your reporting consistent across borders without you having to chase updates or reconcile conflicting numbers from different firms.

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Accounting & Bookkeeping

Daily bookkeeping Reporting in UK, Irish and French GAAP, VAT and corporation tax filings, year-end financial statements. All maintained by your dedicated advisor, not passed between departments. One person who sees the full picture of your finances, catches discrepancies early, and keeps your reporting consistent across borders without you having to chase updates or reconcile conflicting numbers from different firms.

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1

Accounting & Bookkeeping

Daily bookkeeping Reporting in UK, Irish and French GAAP, VAT and corporation tax filings, year-end financial statements. All maintained by your dedicated advisor, not passed between departments. One person who sees the full picture of your finances, catches discrepancies early, and keeps your reporting consistent across borders without you having to chase updates or reconcile conflicting numbers from different firms.

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Payroll & HR

Employment contracts, payroll processing, social contributions and HR compliance adapted to each country's requirements. Your advisor manages the entire cycle so your team gets paid correctly and on time. Because the same person handles your payroll and your accounts, there is no lag between what your books say and what your employees receive. Compliance stays aligned, and you avoid the costly errors that come from disconnected systems.

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2

Payroll & HR

Employment contracts, payroll processing, social contributions and HR compliance adapted to each country's requirements. Your advisor manages the entire cycle so your team gets paid correctly and on time. Because the same person handles your payroll and your accounts, there is no lag between what your books say and what your employees receive. Compliance stays aligned, and you avoid the costly errors that come from disconnected systems.

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2

Payroll & HR

Employment contracts, payroll processing, social contributions and HR compliance adapted to each country's requirements. Your advisor manages the entire cycle so your team gets paid correctly and on time. Because the same person handles your payroll and your accounts, there is no lag between what your books say and what your employees receive. Compliance stays aligned, and you avoid the costly errors that come from disconnected systems.

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3

Advisory

Fiscal structuring, banking guidance and financial strategy for businesses expanding into new markets. Practical advice from experienced accountants, auditors and consultants who know the local systems first-hand. Your advisor already understands your numbers and your corporate structure, so the advice you get is grounded in the specifics of your situation, not generic guidance that requires another round of explanation.

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3

Advisory

Fiscal structuring, banking guidance and financial strategy for businesses expanding into new markets. Practical advice from experienced accountants, auditors and consultants who know the local systems first-hand. Your advisor already understands your numbers and your corporate structure, so the advice you get is grounded in the specifics of your situation, not generic guidance that requires another round of explanation.

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3

Advisory

Fiscal structuring, banking guidance and financial strategy for businesses expanding into new markets. Practical advice from experienced accountants, auditors and consultants who know the local systems first-hand. Your advisor already understands your numbers and your corporate structure, so the advice you get is grounded in the specifics of your situation, not generic guidance that requires another round of explanation.

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4

Company Formation

Tax and social registrations, bank account setup, head office domiciliation and legal formalities. 01 handles the administrative groundwork so you can focus on operations. The advisor who sets up your entity is the same person who manages it going forward, which means no transition period, no handover documents, and no re-explaining your business to someone new.

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4

Company Formation

Tax and social registrations, bank account setup, head office domiciliation and legal formalities. 01 handles the administrative groundwork so you can focus on operations. The advisor who sets up your entity is the same person who manages it going forward, which means no transition period, no handover documents, and no re-explaining your business to someone new.

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4

Company Formation

Tax and social registrations, bank account setup, head office domiciliation and legal formalities. 01 handles the administrative groundwork so you can focus on operations. The advisor who sets up your entity is the same person who manages it going forward, which means no transition period, no handover documents, and no re-explaining your business to someone new.

Five Countries.
One Consistent Standard.

01 maintains dedicated teams in each jurisdiction, with local expertise and a unified approach to reporting and compliance. Your advisor coordinates everything across borders.

France

Full accounting, social declarations and fiscal advisory

United Kingdom

Companies House compliance, HMRC filings and UK GAAP reporting

Ireland

CRO filings, Revenue compliance and Irish GAAP reporting

Malta

EU-compliant accounting and corporate structuring

Canada

CRA compliance and North American market entry support

Built for Businesses That Cross Borders

01 Accounting Services was founded to solve a specific problem: businesses expanding internationally were stuck coordinating between multiple firms in multiple countries, repeating themselves to new contacts at every turn.

01 works differently. Unlike firms that split your file across separate tax, payroll and accounting departments, 01 assigns one dedicated advisor who manages everything across every jurisdiction. All work stays in-house with 01's own team. The firm runs a digital, responsive operation built around direct access and fast turnaround. Your advisor knows your business, adapts to your reporting structure, and picks up the phone when you call. For French-speaking clients, that relationship happens in their native language.

One advisor, everything covered

French-speaking by default

Digital, responsive, direct

Fully in-house, zero handoffs

Senior People. Direct Access

At 01, you work with the same person every time. Your advisor is a senior professional with hands-on knowledge of your jurisdictions, not a junior associate learning on the job.

At 01, you work with the same person every time. Your advisor is a senior professional with hands-on knowledge of your jurisdictions, not a junior associate learning on the job.

Tim

Tim

Founder

Astrid

Astrid

Manager

Anabelle

Anabelle

Manager

Carole

Carole

Global Projects

Cindy

Cindy

Manager France & Ireland

Axel

Axel

Manager United Kingdom

Edouard

Edouard

Manager

Aurelie

Aurelie

Manager Malta

Matthew

Matthew

Manager

Frequently Asked Questions

We Answered All

What does it mean to have one dedicated advisor for my business?

Does 01 Accounting outsource any of its accounting work?

Which countries does 01 Accounting Services cover for international businesses?

Can 01 adapt its reporting to match my company's internal structure?

How does 01 Accounting use technology to support its clients?

Is 01 Accounting suitable for small and medium-sized businesses?