One Advisor for All Your Accounting Needs

From bookkeeping to company formation, your single point of contact manages it all across every jurisdiction in both French and English.

No handoffs between departments. No outsourced work.

Just one senior advisor who knows your business inside out and handles your accounting, tax and compliance directly.

The service adapts to your organisation and your schedule, not the other way around.

Our Office
Our Office

Accounting & Bookkeeping

Your books need to be accurate, compliant, and ready when you need them. 01 Accounting Services handles the full cycle: day-to-day bookkeeping and back office services, bank and supplier account reconciliation, VAT and corporate tax filings, and year-end financial statements prepared to local GAAP standards (UK, Irish, or French). Monthly, quarterly, or annual reporting is structured around your schedule, not ours. And because your dedicated advisor handles your accounts personally, they spot issues early and flag what matters before it becomes a problem.

What’s Included:

Bookkeeping, back office services and accounting procedures

VAT, corporate tax, and EC sales list (VIES) declarations

Year-end financial statements

Monthly, quarterly, and annual reporting (UK/IR/FR GAAP)

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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.

Accounting & Bookkeeping

Your books need to be accurate, compliant, and ready when you need them. 01 Accounting Services handles the full cycle: day-to-day bookkeeping and back office services, bank and supplier account reconciliation, VAT and corporate tax filings, and year-end financial statements prepared to local GAAP standards (UK, Irish, or French). Monthly, quarterly, or annual reporting is structured around your schedule, not ours. And because your dedicated advisor handles your accounts personally, they spot issues early and flag what matters before it becomes a problem.

What’s Included:

Bookkeeping, back office services and accounting procedures

VAT, corporate tax, and EC sales list (VIES) declarations

Year-end financial statements

Monthly, quarterly, and annual reporting (UK/IR/FR GAAP)

Payroll & HR

Getting payroll wrong in a foreign jurisdiction is costly, and the rules differ meaningfully between France, the UK, Ireland, Malta, and Canada. Social contributions, statutory deductions, employment law, reporting obligations: each country has its own system, its own deadlines, and its own penalties for getting it late. Your dedicated advisor manages the entire payroll and HR cycle for every jurisdiction you operate in. They draft compliant employment contracts, process payroll, handle social declarations, and keep you on the right side of local labour regulations. One person, fully accountable, so your team gets paid correctly and on time.

What’s Included:

Payroll processing and statutory deductions

Employment contract drafting and implementation

Social contributions and declarations (URSSAF, PRSI, PAYE, CPP/EI)

HR compliance adapted to each country's requirements

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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.

Payroll & HR

Getting payroll wrong in a foreign jurisdiction is costly, and the rules differ meaningfully between France, the UK, Ireland, Malta, and Canada. Social contributions, statutory deductions, employment law, reporting obligations: each country has its own system, its own deadlines, and its own penalties for getting it late. Your dedicated advisor manages the entire payroll and HR cycle for every jurisdiction you operate in. They draft compliant employment contracts, process payroll, handle social declarations, and keep you on the right side of local labour regulations. One person, fully accountable, so your team gets paid correctly and on time.

What’s Included:

Payroll processing and statutory deductions

Employment contract drafting and implementation

Social contributions and declarations (URSSAF, PRSI, PAYE, CPP/EI)

HR compliance adapted to each country's requirements

Advisory

Good accounting tells you where you stand. Good advice tells you where to go next. 01 draws on over 12 years of cross-border experience to advise on fiscal structuring, financial planning, and banking relationships. Whether you need support during a statutory audit, guidance through a tax or HR inspection, or strategic input on how to structure operations across multiple jurisdictions, your advisor brings the context to make it useful. They already know your numbers, your structure, and your goals. The team's background spans accounting, auditing and consulting, so the advice is grounded in technical expertise, not theory.

What’s Included:

Fiscal, financial, and banking advisory

Assistance for statutory audits

Support during tax and HR controls

Monitoring of legal formalities

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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.

Advisory

Good accounting tells you where you stand. Good advice tells you where to go next. 01 draws on over 12 years of cross-border experience to advise on fiscal structuring, financial planning, and banking relationships. Whether you need support during a statutory audit, guidance through a tax or HR inspection, or strategic input on how to structure operations across multiple jurisdictions, your advisor brings the context to make it useful. They already know your numbers, your structure, and your goals. The team's background spans accounting, auditing and consulting, so the advice is grounded in technical expertise, not theory.

What’s Included:

Fiscal, financial, and banking advisory

Assistance for statutory audits

Support during tax and HR controls

Monitoring of legal formalities

Company Formation

Starting operations in a new country involves more than filing paperwork. 01 handles the administrative groundwork so you can focus on the business itself: company registration, tax and social organisation enrolment, bank account setup, and head office domiciliation. Each step is managed by the same advisor who will handle your ongoing accounting. That means no transition period, no re-explaining your business to a new contact, and no gaps between setup and operations.

What’s Included:

Company registration and legal formalities

Tax and social organisation registration

Bank account opening assistance

Business management and head office domiciliation

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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.

Company Formation

Starting operations in a new country involves more than filing paperwork. 01 handles the administrative groundwork so you can focus on the business itself: company registration, tax and social organisation enrolment, bank account setup, and head office domiciliation. Each step is managed by the same advisor who will handle your ongoing accounting. That means no transition period, no re-explaining your business to a new contact, and no gaps between setup and operations.

What’s Included:

Company registration and legal formalities

Tax and social organisation registration

Bank account opening assistance

Business management and head office domiciliation

Why Choose Us

One Dedicated Advisor

Most firms route you through separate tax, payroll and accounting departments. At 01, you are assigned one senior advisor who manages every aspect of your account. They know your business because they work on it directly, every day.

01

One Dedicated Advisor

Most firms route you through separate tax, payroll and accounting departments. At 01, you are assigned one senior advisor who manages every aspect of your account. They know your business because they work on it directly, every day.

01

One Dedicated Advisor

Most firms route you through separate tax, payroll and accounting departments. At 01, you are assigned one senior advisor who manages every aspect of your account. They know your business because they work on it directly, every day.

01

Nothing Outsourced. Ever.

All work is completed in-house by our own team of accountants, auditors and consultants. No subcontracted bookkeepers, no third-party payroll providers, no external firms handling pieces of your account behind the scenes.

02

Fluent French-Speaking Support

For French-speaking businesses expanding internationally, your advisor speaks your language natively and understands both the regulatory environment you are coming from and the one you are entering.

03

Legal, Digital, Responsive Operation Solution

Efficient tools and streamlined processes mean faster turnaround on filings, direct access to your advisor, and real-time visibility on your accounts across every jurisdiction.

04

Adapted to Your Organisation

01 fits around the way you work. Reporting formats, schedules and communication are tailored to your needs, so you get the information you need in the format and frequency that suits your business.

05

Who We Work With

01 Accounting Services works primarily with SMEs and international businesses that operate across borders. Most clients are companies with entities in more than one country, whether that means a French parent with a UK subsidiary, a tech firm expanding into Ireland, or a group managing operations across all five of 01's jurisdictions.

The firm supports businesses at every stage: from first-time international expansion through to established multi-country groups that need consistent, senior-level accounting across all their markets. Clients come from sectors including technology, professional services, software, retail, manufacturing and construction. The service model stays the same regardless of size or industry: one dedicated advisor, everything in-house, adapted to how your organisation works.

Frequently Asked Questions

We Answered All

What happens if my question requires expertise outside my advisor's main jurisdiction?

Can 01 handle bookkeeping and tax filings under different GAAP standards at the same time?

Can 01 Accounting handle compliance across multiple countries at once?

Can 01 produce management reports in a format that matches our internal templates?

How does 01 handle the transition if I am switching from another accounting firm?

How do I get started with 01 Accounting for my international business?