What Cyplom Avocats does

Cyplom Avocats SAS is a French law firm exclusively dedicated to VAT (Value-Added Tax) and indirect taxation, registered with the Paris Bar and founded in 2020 by Grégoire Person and Thomas Le Boucher — both former VAT practitioners at Fidal and KPMG Avocats. The firm was fully launched commercially in 2023 after a multi-year product development phase. It serves French and international businesses operating in France that face complex VAT compliance, optimization, or dispute challenges — particularly those navigating cross-border transactions, e-commerce flows, electronic invoicing reform, and platform reporting obligations (DAC 7, 242 bis).

The firm's core technology consists of proprietary SaaS tools and APIs developed in-house since 2018, including VAT Checker Pro (intra-community VAT number verification), Checker Pro (SIREN/SIRET and address master data verification aligned with the French tax authority directory), a DAC 7 Reporting Tool, and an OSS API that automates One-Stop Shop VAT declaration submissions from Excel or accounting software. These are complemented by free engagement tools (VAT Checker Free, VAT Calculator, CA3 Simulator, Franchise en Base Simulator) that serve demand generation. The legal advisory service line spans VAT optimization, fiscal audit assistance and defense, M&A VAT due diligence, electronic invoicing reform preparation, VAT group structuring, real estate and customs/insurance/Brexit advisory, regularization of VAT errors, and reliable audit trail (PAF) documentation.

Commercially, the firm operates a sales-led go-to-market: direct advisory engagements are initiated via website booking, WhatsApp, or phone, structured around a fixed-fee (forfait) pricing model emphasizing predictable fees. SaaS tools use a free-plus-paid tier structure with pricing not publicly disclosed. Revenue is primarily from professional services (fixed-fee advisory) with a nascent SaaS revenue stream; the firm has no disclosed external funding, nominal share capital of €15,000, and a headcount anchored by its two co-founders. The firm is positioned to benefit from France's mandatory electronic invoicing reform effective September 2026.

Name

Cyplom Avocats

Legal name

Cyplom Avocats SAS

Website

https://cyplom.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

Cyplom Avocats SAS is a Paris-based French law firm exclusively dedicated to VAT and indirect taxation, founded in 2020 and fully launched in 2023, serving French and international businesses with proprietary SaaS compliance tools (VAT Checker Pro, Checker Pro, DAC7, OSS API) alongside fixed-fee legal advisory on audits, e-invoicing, and cross-border structuring.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Legal Advisory Services (Professional Services): The firm generates revenue primarily through professional legal services in French VAT and indirect taxation. Services include VAT optimization, tax audit assistance, transaction structuring, compliance support, and representation before tax authorities. Pricing is based on fixed-fee (forfait) arrangements offering full transparency on service costs.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Cyplom Avocats is a French law firm exclusively dedicated to VAT and indirect taxation, providing legal advisory services including VAT optimization, tax audit defense, electronic invoicing reform support, VAT group structuring, M&A VAT due diligence, and real estate VAT advisory. The firm complements its legal practice with proprietary SaaS tools (VAT Checker Pro, Checker Pro, DAC7 Reporting Tool, OSS API) that automate VAT number verification, master data validation, and cross-border declaration workflows.

Product overview

Cyplom Avocats operates as a VAT-specialized law firm combining legal advisory services with proprietary SaaS tools and APIs. The core offering includes legal VAT advisory services (tax audits, M&A, electronic invoicing, international VAT, real estate, VAT group optimization) alongside a suite of digital tools: VAT Checker Pro and VAT Checker Free for VAT number verification, Checker Pro for SIREN/SIRET and Master Data compliance, a CA3 simulator, VAT calculator, and Franchise en Base eligibility simulator. The firm has also developed an OSS API for automated VAT declaration submissions. The legal services and digital tools are positioned as complementary offerings within a unified VAT compliance and optimization practice, with the SaaS tools designed to automate and operationalize the compliance workflows that underpin the legal advisory work.

Differentiator

Problem solved

Functional benefit

Brands

• VAT Checker Pro: SaaS solution enabling periodic verification and control of intracommunity VAT numbers of clients and suppliers. Helps secure intracommunity flows and demonstrate validity of VAT numbers at transaction dates.
• Checker Pro
• DAC7 Reporting Tool
• API OSS

Products and services

• VAT Checker Pro A SaaS tool enabling periodic verification of intra-community VAT numbers of clients and suppliers, providing a dedicated interface to manage and control VAT numbers, secure intra-community flows, and demonstrate to authorities that counterparties held a valid VAT number at transaction dates.
• VAT Checker Free A free online tool to verify the validity of a single VAT number and generate a free certificate of validity.
• Checker Pro (Master Data) Automated verification of SIREN/SIRET, VAT numbers, and addresses of clients and suppliers, aligned with the French tax administration directory (Annuaire de l'Administration fiscale) to prepare businesses for the electronic invoicing reform.
• OSS API An API enabling automated filing of OSS (One-Stop Shop) VAT declarations directly from Excel or accounting/management tools, eliminating manual data entry and errors.
• DAC7 Reporting Tool A platform for filing declarations in compliance with the DAC 7 Directive, automating and simplifying compliance with platform reporting obligations for online marketplace operators.
• CA3 Simulator An interactive tool explaining the content of each box (field) of the French CA3 VAT return form, helping businesses understand and correctly fill out their periodic VAT declarations.
• VAT Calculator An online tool for easy VAT calculation, supporting computation of French VAT for various transactions.
• Franchise en Base Simulator A tool to determine eligibility for the small business VAT exemption (franchise en base de TVA) under French law.
• VAT Optimization Advisory Legal advisory services to reduce VAT costs, recover erroneously paid VAT, and maximize profits through strategic VAT management for businesses operating in France.
• Tax Audit Assistance Services Legal representation and strategic defense advisory for businesses subject to French tax audits, including anticipation of consequences, preparation of necessary documentation, and strategy development.
• Electronic Invoicing Reform Support Advisory services helping businesses adopt France's mandatory electronic invoicing reform and e-reporting requirements, including guidance on the transition and compliance with new regulations.
• VAT Group Optimization Advisory Advisory services analyzing whether VAT group arrangements can reduce costs and optimize intra-group VAT flows for multi-entity corporate structures.
• M&A VAT Advisory Advisory services for VAT and customs considerations in mergers and acquisitions, including cross-border transaction structuring, import/export compliance, Brexit-related adjustments, and M&A VAT planning.
• Foreign Company French VAT Registration Assistance for foreign companies seeking to obtain a French VAT number for conducting business in France.
• Real Estate VAT and Transfer Duties Advisory VAT and property transfer duty advisory services for real estate transactions, covering both residential and commercial property matters.
• Reliable Audit Trail (Piste d'Audit Fiable) Advisory Assistance in drafting compliant reliable audit trail (PAF) documentation required for French tax audits, helping businesses avoid penalties.
• VAT Error Regularization Advisory and assistance services for businesses that have made VAT errors and need to regularize their tax situation with the French authorities.

Quantifiable outcome

• TVA optimization can reduce costs and recover erroneously paid VAT, maximizing profits through strategic VAT management

Named customers12 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature8 records

Partnerships

17 partnerships are on record, tiered minor and core.

• 186 AvocatsminorStrategic or Co-development PartnerCyplom publishes in 186 Avocats' legal journals and provides training for the firm, indicating a professional content co-creation and knowledge-sharing relationship in the French legal community.
• TLMR (Touati La Motte Rouge)minorStrategic or Co-development PartnerCyplom publishes in TLMR's legal journals and provides training for the firm.
• Palmer ConsultingminorStrategic or Co-development PartnerCyplom publishes in Palmer Consulting's publications and provides training for the firm.
• LexisNexiscoreStrategic or Co-development PartnerGrégoire Person and Thomas Le Boucher regularly publish doctrinal articles in LexisNexis (Droit fiscal), including articles on NFT VAT regime, composite offers, and other VAT topics. This is a significant thought leadership and content partnership.
• Revue Fiduciaire (Groupe Revue Fiduciaire)minorStrategic or Co-development PartnerCyplom publishes in Revue Fiduciaire's tax publications.
• CPA (Cabinet d'Expertise Comptable)minorChannel Partner/ Reseller/ DistributorCPA is listed among Cyplom's trusted partners; Cyplom provides training and services to CPA's clients.
• &Co AdvisoryminorChannel Partner/ Reseller/ Distributor&Co Advisory is listed as a trusted partner, indicating mutual referral and collaboration in advisory matters.
• ALVOminorChannel Partner/ Reseller/ DistributorALVO is listed as a trusted partner, indicating mutual referral and collaboration.
• omni-aminorChannel Partner/ Reseller/ Distributoromni-a is listed as a trusted partner, indicating mutual referral and collaboration.
• Doctrine.frcoreStrategic or Co-development PartnerThomas Le Boucher published a doctrinal article on VAT incorrectly billed and late interest (Conseil d'État decision, January 2025) via Doctrine.fr, a major French legal publishing platform.
• HAAS AvocatsminorStrategic or Co-development PartnerCyplom co-hosted a webinar with HAAS Avocats on marketplace legal and fiscal risks, indicating a collaborative GTM relationship.
• Mathez FormationminorStrategic or Co-development PartnerCyplom provides training through Mathez Formation, a professional training organization.
• ESCP Business SchoolminorStrategic or Co-development PartnerCyplom provides training and educational content for ESCP Business School.
• AvotechminorOthersAvotech is a professional club/organization of which Cyplom is a member, providing networking and ecosystem access.
• AnomiaminorOthersCyplom participated in a podcast with Anomia discussing the firm's journey and professional path. Anomia is a legal/professional community platform.
• IACF (Institut des Avocats Conseils Fiscaux)minorOthersCyplom is a member of IACF (Institut des Avocats Conseils Fiscaux), a professional association of tax counsel lawyers.
• Le Geek des ChiffresminorGTM or Marketing PartnerCyplom participated in a YouTube interview with 'Le Geek des Chiffres', the leading YouTube channel for French chartered accountants, for marketing and thought leadership purposes.

Scale indicators3 records

Recent moves10 records

Expansion highlights6 records

Emerging players

• Sovos: Global tax compliance SaaS provider with strong VAT determination, e-invoicing, and real-time reporting capabilities across Europe. Most directly comparable to Cyplom's VAT Checker Pro / Checker Pro / DAC7 / OSS toolset, but at global scale and without the legal-advisory layer.
• Vertex Inc. Global indirect-tax technology provider offering VAT compliance, e-invoicing, and tax determination software. Competes with the SaaS side of Cyplom's offering for enterprise customers operating across multiple EU jurisdictions.

Broad incumbents

• EY Société d'Avocats: Big Four-affiliated French law firm providing full-service tax and legal advisory, including indirect tax. Competes with Cyplom for cross-border VAT, e-invoicing, and platform-reporting mandates from multinational clients.
• Taj (Deloitte Société d'Avocats): Deloitte's French law firm affiliate with a substantial indirect-tax practice. Competes with Cyplom for enterprise VAT advisory, cross-border structuring, and tax audit defense mandates, while also offering broader legal and consulting services.
• PwC Société d'Avocats: Big Four legal/tax practice in France with a VAT and indirect-tax team serving enterprise and international clients. Competes with Cyplom on M&A VAT, customs, and large-enterprise compliance work.
• Arsene Taxand: Leading independent French tax law firm and Taxand network member. Specializes in direct and indirect tax advisory for large corporates, competing with Cyplom on M&A VAT, international structuring, and contentious tax matters.
• Fidal: Largest independent French business law firm with a national VAT and indirect-tax practice. Both Cyplom co-founders trained at Fidal (2017-2019). Fidal is the direct 'parent' pedigree for Cyplom's niche and competes for the same mid-market French VAT mandates at greater scale and geographic reach.
• KPMG Avocats France: Big Four tax/legal practice in France with a strong indirect-tax offering. Both Cyplom co-founders spent 2019-2023 in KPMG Avocats' VAT practice. KPMG Avocats competes for large French and multinational VAT mandates and has the resources to bundle advisory with global compliance programs.
• Bignon Lebray Avocats: Independent French business law firm with a dedicated tax practice. Competes for the same mid-market French VAT advisory mandates as Cyplom, with a broader multi-disciplinary offering.

Others

• Doctrine.fr: French legal intelligence and case-law publishing platform where Cyplom publishes doctrinal content. Not a direct competitor, but a content-distribution and lead-generation partner adjacent to Cyplom's go-to-market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/cyplom

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cyplom Avocats