Custom Software Development in France

Name: Custom Software Development in France
Brand: Zoho

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500+

projects delivered

ZohoOdooAICustom apps

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EUR

fixed-quote pricing

✓ Scope agreed firstOne price

At a glance

Custom Software Development in France: the short answer

What it is: Custom Software Development for businesses in France - building the system your business actually runs on, when nothing off the shelf fits the process.
Typical timeline: A focused first release is commonly 8 to 16 weeks: two to three weeks of discovery and prototype, then build in two-week increments you review.
What it costs: We quote a fixed price in EUR after a discovery session, broken into phases so you are never committing to the whole build on day one.
Local specifics: TVA at the right rate on every invoice, Factur-X e-invoicing through an approved platform ready for the September 2026 reform, Zoho People connected to your French payroll provider for the DSN, French documents where the Loi Toubon requires them, GDPR-aware data handling in Zoho’s EU data centre, and delivery on Paris time (CET/CEST).
Delivered by: Shyphan AI Solutions. Support on French working hours (CET/CEST). Call +44 7343 086577.
Last reviewed: October 24, 2026

**Customising a form in Odoo Studio.** The Studio editor on a quotation form: new field types to drag in, existing fields, tabs and the option to add buttons without code. Screenshot: Odoo S.A..

Barges moored on the Vilaine river in Rennes

Why Shyphan

Why French businesses build with Shyphan

Fixed quote in EUR agreed before a line of code is written
A clickable prototype before you commit to the build
Source code, repositories and cloud accounts in your ownership
Accessible, WCAG-tested interfaces rather than an accessibility audit after launch
Delivery and support on French working hours, Monday to Friday

What it involves

What Custom Software Development actually delivers

Custom Software Development means building the system your business actually runs on, when nothing off the shelf fits the process.

For French teams that matters because the 20% TVA rate, the e-invoicing reform starting in September 2026, monthly DSN payroll filings and CNIL data rules have pushed businesses towards systems that produce compliant documents by default. We build for French businesses whose core process is their differentiator and does not fit a packaged product, and we say no when a packaged product would do the job better than a custom build.

We work in React, Node.js, Python, .NET, Flutter, PostgreSQL, AWS and Azure, plus Zoho Creator where low-code is the faster answer, chosen because they are maintainable and widely supported, so you are never locked to us by an exotic technology choice.

Process discovery

Prototype first

Web & mobile

Integrations

Bilingual UI

Full handover

Understanding Zoho for French businesses

Certifications & awards

Our certified Zoho team

Namira Khan - Zoho CRM Certified Administrator (Zoho certification)

Sushant Singh - Zoho CRM Certified Administrator (Zoho certification)

Hyacinth Kadri - Zoho People Certified Associate (Zoho certification)

Fazal Mahfooz - Zoho Creator Developer (Professional) (Zoho certification)

Fazal Mahfooz - Zoho Creator Developer (Associate) (Zoho certification)

Vikas Saroj - Zoho Creator Developer (Associate) (Zoho certification)

Yashu Mittal - Zoho Creator Developer (Associate) (Zoho certification)

Shreyansh Dubey - Zoho Creator Developer (Associate) (Zoho certification)

Lubna Nizar - Zoho Creator Developer (Associate) (Zoho certification)

Praveen Kumar Sonkar - Zoho Creator Developer (Associate) (Zoho certification)

Shamly P - Zoho Creator Developer (Associate) (Zoho certification)

Across France

Custom Software Development across France

We deliver custom software development for clients in Paris, Lyon, Marseille, Toulouse, Lille, Bordeaux, Nantes and Rennes. Projects run remotely on French working hours with on-site workshops in Paris, Lyon and Marseille where discovery or training justifies it.

A parent-company licence, a group entity and a branch office often sit under one owner here, so the software has to keep entities clean while giving the group one view. Whatever the sector, the failure mode is the same: software built without the people who use it, and abandoned within a year. Discovery is where we prevent that.

A Shyphan Zoho consultant planning a Zoho rollout for a French business — Zoho consultants for France

Technology

The stack we build on

Chosen for maintainability and for the fact that you, or anyone you hire later, can work on it. Nothing exotic that only we can support.

React & Next.js

Web apps and portals

Node.js

APIs and services

Python

Backends and data work

Flutter

iOS and Android from one codebase

Swift & Kotlin

Native where it is needed

PostgreSQL

Relational data at scale

AWS & Azure

Hosting in your own account

Docker & CI/CD

Repeatable, safe releases

REST & GraphQL

Integration-ready by design

English & French

True accessible interfaces

Auth & SSO

Scoped, auditable access

Analytics

Usage visible from day one

Building in France

Getting Custom Software Development right in France

Software for French businesses has to handle TVA, e-invoicing, the French language and GDPR from the first release. This is how we approach Custom Software Development.

TVA and e-invoicing by design

Anything that bills applies the right TVA rate, carries the mandatory invoice mentions and can produce Factur-X for exchange through an approved platform.

French and English

Interfaces, documents and notifications work in French and English, with French by default for users in France.

Hosting in the EU

Hosting in an EU cloud region, often in France, where your customers or sector expect it, documented with access and retention.

GDPR and the CNIL

Consent, cookie rules, access requests, breach records and impact assessments are designed in, not bolted on.

What we deliver

How a custom software development project runs

Five stages, a prototype before the build commitment, and a fixed price in EUR agreed up front.

01

Discovery and scope

Workshops with the people who will use it, a written scope and a fixed price in EUR before anything is built.

02

Prototype before build

A clickable prototype you review and change cheaply, so disagreements happen in Figma rather than in code.

03

Build in two-week increments

Working software you can see and use every fortnight, with priorities you can change between increments.

04

Testing and UAT

Automated tests on the paths that matter plus scripted UAT on your own scenarios before release.

05

Launch, handover and support

Deployment into your own cloud account, documentation, training and an optional support retainer on French working hours.

French compliance

What French compliance means for Custom Software Development

In France, TVA and corporate tax are filed with the DGFiP, payroll is reported every month through the DSN, and the e-invoicing reform changes how invoices are sent and received from 1 September 2026. These are the rules a French setup has to get right.

Obligation	What the rule is	What has to be configured
TVA (VAT)	The standard rate is 20%, with 10% for restaurants, passenger transport and some renovation work, 5.5% for most food, books and energy-efficiency works, and 2.1% for the press and some medicines. Returns go on the CA3, monthly or quarterly for small amounts, under the régime réel normal, or on the annual CA12 with instalments under the régime réel simplifié. Intra-EU B2B trade uses the reverse charge (autoliquidation) with EMEBI and DES declarations, B2C distance sales go through the OSS, and import VAT is self-assessed on the CA3.	The right rate by item and customer, SIREN and intra-community VAT numbers on every invoice with the mandatory mentions (payment terms, late-payment penalty rate and the EUR 40 fixed recovery fee), reverse charge and OSS treatment set correctly, deductible TVA tracked, and CA3 or CA12 figures for each period.
E-invoicing reform	From 1 September 2026 every VAT-registered business must be able to receive structured e-invoices, and large and mid-sized companies (GE and ETI) must also issue e-invoices and e-report. SMEs and micro-businesses must issue from 1 September 2027. Invoices travel through approved platforms (Plateformes Agréées) in Factur-X, UBL or CII format, and invoices to the public sector already go through Chorus Pro.	Zoho Books' French edition producing Factur-X invoices and connected to B2Brouter, an approved platform, for sending and receiving, customer SIREN numbers captured on every account, and the full flow tested before your issuing date.
Corporate tax (IS)	The standard rate is 25%, or 15% on the first EUR 42,500 of profit for qualifying SMEs (turnover under EUR 10m, fully paid-up capital and at least 75% held by individuals). The annual liasse fiscale is built from accounts kept on the Plan Comptable Général, and the FEC (Fichier des Écritures Comptables) must be produced on request in a tax audit.	A chart of accounts on the PCG, entities kept separate, fixed assets recorded, and journals kept complete and sequential so the FEC can be produced on request.
Payroll (DSN, URSSAF, PAS)	Every month the employer files the DSN (déclaration sociale nominative) through net-entreprises.fr, pays social contributions to URSSAF and withholds income tax at source (prélèvement à la source). Payroll runs on a French payroll engine such as Silae, PayFit, Sage Paie or Cegid; Zoho Payroll is not available in France.	Zoho People kept as the HR record and connected to your payroll provider, so hires, pay changes, absences and leavers flow across without rekeying, and payroll journals posting to the ledger.
Employment and data rules	The legal working week is 35 hours, with RTT days where working time is set above it, five weeks' paid leave (2.5 working days per month), sector collective agreements (conventions collectives) and mandatory company health cover (mutuelle). GDPR is enforced by the CNIL, including consent before non-essential cookies, and the Loi Toubon requires French in consumer documents, employment documents and contracts.	Leave, RTT and working-time rules set per collective agreement, accounts provisioned in Zoho's EU data centre (zoho.eu), consent captured for every contact, French templates for customers and staff, and access and deletion requests handled on record.

The filing calendar

Monthly, quarterly or annuallyTVA return: the CA3 monthly (or quarterly for small amounts) under the régime réel normal, or the annual CA12 with instalments under the régime réel simplifié
MonthlyDSN through net-entreprises.fr, with social contributions to URSSAF and income tax withheld at source
Once a yearLiasse fiscale and corporate tax (IS) return, built from the annual accounts
1 September 2026 and 1 September 2027E-invoicing: every business must receive from 2026, large and mid-sized companies issue from 2026, and SMEs and micro-businesses issue from 2027

Who you file with

TVA, corporate tax and the FECDGFiP (impots.gouv.fr, espace professionnel)
Social contributionsURSSAF
Monthly DSNnet-entreprises.fr
Data protection and cookiesCNIL
Invoices to the public sectorChorus Pro

We configure the system to produce what these returns need, and we test it against your own transactions before go-live. We are not tax advisers: your expert-comptable signs the returns, and rates and thresholds change, so treat this as the shape of the work rather than advice. Last reviewed 24 October 2026.

Industries

Industries we serve in France

From technology and finance to manufacturing, healthcare, retail and professional services.

Real Estate

Construction

Manufacturing

Oil, Gas & Energy

Retail

E-commerce

Wholesale & Trading

Logistics & Transport

Healthcare

Pharmaceuticals

Education

Banking & Finance

Insurance

Hospitality & Tourism

Food & Beverage

Professional Services

Technology & IT

Government

Automotive

Telecom

Travel & Aviation

Agriculture

Non-profit & NGO

Media & Marketing

Our team

Backed by a certified Zoho team

Our consultants are certified across Zoho CRM, Books, One, Creator, Analytics and People, and we stay active in the Zoho community, including Zoholics. You work with senior people who know the platform inside out.

From discovery to go-live and ongoing support, the same team stays with you, available on Paris time (CET/CEST) by call, email and screen-share.

Certified Zoho consultants Zoholics community Paris-hours support

Whether you are moving off spreadsheets or scaling an existing Zoho setup, our certified team does the heavy lifting and trains yours to own it with confidence, so your investment keeps paying off long after go-live.

500+

Projects delivered

6+

Zoho products mastered

7

Global offices

Trusted by

Trusted by teams worldwide

Zoho services

Explore Zoho services & migrations across France

Everything French businesses search for, from Zoho implementation, CRM, accounting and ERP to HR, inventory, apps, migrations and industry solutions, delivered by a certified Zoho Premium Partner.

Full France directory

All our software and app services in France

Every custom software, web and mobile app page for France: 66 services.

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By city 13

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Industry software 5

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Across France

Zoho partners across France

Local Zoho implementation and support in every region, from Paris and Lyon to Marseille, Toulouse and Lille.

Zoho in Paris

Zoho for finance, technology, media, retail and services.

Zoho in Lyon

Zoho for technology, media, finance and services.

Zoho in Marseille

Zoho for manufacturing, finance, retail and services.

Zoho in Toulouse

Zoho for finance, legal, retail and services.

Zoho in Lille

Zoho for engineering, finance, education and services.

Zoho in Bordeaux

Zoho for finance, tourism, technology and services.

Zoho in Nantes

Zoho for aerospace, technology, media and services.

Zoho in Nice

Zoho for port, logistics, retail and services.

Zoho vs the usual stack

Why French teams switch to Zoho

How Zoho, set up by a Zoho Premium Partner, compares with a typical Salesforce or HubSpot stack. Figures are approximate and vary by plan.

	Zoho with Shyphan	Typical Salesforce / HubSpot stack
Apps included	40+ apps in Zoho One under one login	CRM only; marketing, support and finance are separate paid products
Typical cost per user / month	From about $37 for the full suite	Often $150-300+ once add-ons are included
Accounting & French TVA	Built in with Zoho Books (TVA)	Needs QuickBooks, NetSuite or third-party add-ons
Custom apps & automation	Low-code Zoho Creator + Deluge included	Extra platform licensing and developer cost
Setup & migration	Fixed-quote; we migrate your data for you	DIY or costly per-hour partner work

How it works

Your Zoho rollout in 5 clear steps

A proven, fixed-quote process from first call to go-live and beyond, with no surprises.

1

Discovery call

We map your workflow, current tools, team size and goals on a free 30-minute call.

2

Blueprint & fixed quote

You get a clear plan: Zoho apps, customizations, integrations, timeline and a fixed price in EUR.

3

Build & migrate

We configure Zoho and migrate your data from Salesforce, HubSpot, QuickBooks or spreadsheets, cleanly.

4

Train & go-live

Admin and end-user training, testing and a smooth launch with zero downtime.

5

Support & optimize

Ongoing support, new users, automations and enhancements under an optional care plan.

Zoho partner France

Your Zoho Premium Partner in France

Shyphan is a Zoho Premium Partner in France, helping French companies plan, implement and get real value from Zoho. Whether you need Zoho CRM implementation, Zoho Books for French TVA and accounting, or a full Zoho One ERP across sales, finance, HR and operations, our certified consultants deliver a fixed-quote rollout that fits how French businesses actually work.

We work with startups, small businesses and multi-site enterprises across Paris, Lyon, Marseille, Lille, Bordeaux, Toulouse, Nantes and Nice and every state in between. Teams come to us to migrate from Salesforce, HubSpot or QuickBooks, to replace a tangle of spreadsheets and point tools, or to finally connect sales, marketing, support and finance on one platform. Because Zoho One bundles 40+ apps for one low per-user price, most French businesses cut software spend while gaining a single source of truth.

As your Zoho consultant, we handle discovery, configuration, data migration, integrations, automation and training end to end, then support you as you scale. Book a free consultation and we will recommend the right Zoho plan and a clear roadmap in EUR, with no obligation.

FAQ

Custom Software Development France: questions answered

Can Custom Software Development produce French e-invoices?

Yes. Billing features apply the right TVA rate, show your SIREN and intra-community VAT number with the other mandatory mentions, and can output Factur-X, UBL or CII for exchange through the approved platform you choose.

Can Custom Software Development be hosted in France or the EU?

Yes. We agree hosting at the start, usually a French or other EU region of AWS, Azure or a French cloud provider, and document it together with access controls and retention for GDPR.

Should we build custom or buy off the shelf?

Buy wherever a packaged product fits. We turn down custom builds where Zoho, an ERP or a vertical product would do the job, because a bad custom decision costs you for years. Custom is right when the process is your competitive advantage, or when no product covers it without heavy compromise.

How long does a custom build take?

A focused first release is commonly 8 to 16 weeks: two to three weeks of discovery and prototype, then build in two-week increments you review. Larger platforms run longer and are phased so something useful ships early.

Who owns the code?

You do. Source, repositories, documentation and cloud accounts are in your name from day one. There is no escrow arrangement and no dependency on us to keep operating.

How much does custom software development cost in France?

We quote a fixed price in EUR after a discovery session, broken into phases so you are never committing to the whole build on day one. Anyone quoting a number before understanding the process is guessing, and you will pay for that guess later.

What happens after launch?

You own everything: code, repositories, cloud accounts and documentation. Most clients take a monthly support retainer for fixes, security patching and enhancements, but you are free to take it in-house or elsewhere.

Do you work outside Paris?

Yes. We deliver across Paris, Lyon, Marseille, Toulouse, Lille, Bordeaux, Nantes and Rennes, remotely as standard with on-site attendance in Paris, Lyon and Marseille where the project justifies it.

What does the first conversation cover?

A short discovery call: what you run today, what is not working, who it affects and what a good outcome looks like. You leave it knowing whether we are a fit and roughly what the work involves, with no obligation either way.

Who will we actually work with?

A named consultant who stays with the engagement, not a rotating queue. You will meet them before you commit, and they are the person accountable for delivery.

Keep exploring

More on Custom Software Development in France

Custom Software Development in Paris Custom Software Development in Lyon Custom Software Development in Marseille Construction Software Development Custom Dashboard Development Custom ERP Development Custom ERP Development in Paris Education Software Development

Web App Development

Portals, dashboards and workflow platforms.

Mobile App Development

iOS and Android, offline-capable where needed.

Custom ERP Development

The operational backbone when packaged ERP will not fit.

Systems Integration

Stop rekeying data between the systems you own.

Team Augmentation

Vetted engineers monthly, no visas or notice periods.

Maintenance & Support

Take over software the last developer abandoned.

Get Started

Ready to scope your custom software development project?

Book a free discovery call. We will tell you whether this should be custom at all, and if it should, what it will realistically take.

Fixed quote in EUR
Prototype before build commitment
Source code in your ownership
Support on French working hours