Chartered accountants & statutory auditors · Nice, France

Your accountant in Nice, close to you and to your plans.

Entrepreneurs, investors and private individuals, French or foreign: we support you day to day in running your business and managing your assets on the French Riviera, in France and internationally. A local, available and responsive team, working in English, French and Italian.

You run a business →    You are buying property on the Riviera →

Registered with the Ordre des Experts-Comptables (PACA) · In Nice since 2016

EN · FR · IT

Three working languages, every day

48 h

Response time to your questions

Since 2016

Two partners and a team in Nice

Saint-Tropez → Menton

And remotely, across France and abroad

Our services

Five areas of expertise, one point of contact.

We would rather do a few things very well. Here is what we take care of, from your first balance sheet to the day you hand over the business — for your company and for your personal assets.

Accounting & tax

Bookkeeping, review, annual accounts, tax returns and filings. Interim figures and dashboards so you can steer the business, not just look back at it.

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Payroll & HR

Payslips, social security filings, employment contracts and terminations. Fully outsourced HR so you can focus on your business.

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Company law & incorporation

Choosing the right structure, articles of association, registration, annual corporate housekeeping, SCI and holding companies. A complete file from day one.

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Advisory & wealth

Owner remuneration, forecasts, financing, sale and succession. A statutory auditor’s eye when things need to be watertight.

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Property & non-residents

Buying or owning property on the French Riviera from abroad: ownership structure, non-resident tax returns, lettings, capital gains, succession. In English, French or Italian.

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Not sure where to start?

Ten minutes on the phone is often enough to see clearly. Free first call, answer within 48 hours.

International · Non-residents

Setting up or investing on the French Riviera? We speak your language — and the tax office’s.

Whether you are starting a business in France or buying a flat in Nice, a villa in Cap d’Ail or a rental property in Antibes, we handle the tax, filing and structuring side, working alongside your notaire, your lawyer and your advisers at home.

Doing business in France

Relocating as a company director, French subsidiary or branch, EU VAT, tax residency, holding structures and dividends — with daily experience of cross-border files, especially Franco-Italian ones.

Tell us about your business project →

Buying and owning property

Direct ownership or SCI, rental income and furnished lettings, non-resident returns, wealth tax on property (IFI), capital gains and tax representative on resale, cross-border succession, tax treaties.

Tell us about your purchase →

How we work

Simple, clear, no surprises on the invoice.

01

A free 10-minute first call

By phone or video, to understand your business, your constraints and what you expect from us — and to tell you frankly whether we are the right firm for you.

02

An engagement letter you can actually read

A monthly fee that states exactly what is included, what is not, and what is billed separately. No surprise line at year end.

03

Tools that save you time

Upload receipts from your phone with Pennylane, e-invoicing compliant with the 2026 French reform, dashboards available online.

About us

Two partners, a human-sized team.

Duo Decimal is a chartered accounting and statutory audit firm founded in Nice in 2016, registered with the Ordre des Experts-Comptables (PACA region) and a member of the Ansemble network of accounting and advisory firms across south-east France. We work with tradespeople, retailers, professionals, SMEs and private clients from Saint-Tropez to Menton — and well beyond.

Meet the team →

Christophe Mollard

Partner · Chartered accountant, statutory auditor

Management controller in industry (Areva, Plastic Omnium), then accounting firms in Monaco and Menton, before co-founding Duo Decimal in 2016. He leads the accounting, payroll and legal work for companies, with a controller’s eye on their figures.

Tom Vuagnoux

Partner · Chartered accountant, statutory auditor

International and Franco-Italian files, holding structures and succession, the firm’s digital tools (Pennylane). Works in French, English and Italian.

Trusted by our clients

What they say about us.

Google rating: 4.8 / 5

« I’ve been working with Duo Decimal for almost six years, and I couldn’t ask for a better partner to support me in running my business. The team is always available, responsive, and knows how to explain things clearly, even when they seem complicated. »

Prestige Motors · client for six years
Translated from French

« An accounting firm that combines the three qualities you need in any trusted partner: expertise, commitment and responsiveness. I highly recommend their services. »

Ugo R. · Google review
Translated from French

« Excellent accounting firm! Rigorous, professional and highly responsive. Special thanks to Aurore and Christophe, always available, efficient and full of sound advice. A reliable firm that truly listens — I recommend them 100%. »

Sirius · Google review
Translated from French

A question about accounting, tax or payroll? Let’s talk.

Free 10-minute first call. Answer within 48 hours.