Factur-X / PDP: the 2026 schedule seen from the accounting firm
On 1 September 2026, large French companies must emit invoices in Factur-X via a PDP. For accounting firms, the real challenge is reception, not emission.
Custom software for accounting firm.
An accounting firm has to orchestrate recurring engagements, manage a client portfolio, and integrate heterogeneous business software (Sage, Cegid, Pennylane…). Generic CRMs miss the engagement notion; business tools have no CRM.
01What we solve
Three recurring problems.
The same in most firms.
Before talking software, we talk pain points. If you don't recognize any of these three, we are probably not the right partner for you.
- 01
Engagements get lost between tools
Your team juggles between Sage, Excel, a generic CRM and shared folders. Recurring engagements drift, one-off engagements slip under the radar, and per-file profitability is impossible to measure without manual re-entry.
45 minutes lost per day per team member navigating between tools
- 02
Billing reacts, it doesn't anticipate
You bill on time spent after the fact, with no real-time margin visibility. Amendments are forgotten, off-package work is not re-billed, unpaid invoices drag on. Between 5% and 12% of revenue lost per year on an average firm.
5-12% of yearly revenue lost on engagement margin
- 03
The client portal exists, but nobody uses it
Market platforms are slow, confusing, designed for accountants, not for SME owners. Result: your clients send their documents by email, your teams file them by hand, the document store decays.
< 20% real adoption of standard client portals
02Complex or critical software
The systems that
cannot fail.
When your processes require a replayable audit trail, sagas with compensation, or compliance by construction, we ship an event-driven architecture (DDD + CQRS + Event Sourcing), not a CRUD layered with audit logs.
Reliable Audit Trail (PAF) replayable for 6 years
Every entry, validation and rectification is kept in tamper-proof form. Presenting to the tax administration: exact reconstruction of the general ledger state at any past date, in seconds, compliant with the BOFIP requirements for the PAF.
SageCegidPennylaneDGFiP
Factur-X emission via PDP (2026-2027 reform)
Full cycle Emission → PDP submission → Customer acceptance → Payment, with clean recovery on rejection at any step. EN 16931 compliance, structured Factur-X format, replayable regulatory history. Ready for mandatory B2B rollout.
Approved PDPsChorus ProPPF
Multi-firm DSN with zero rejection
Monthly DSN orchestration for 100+ clients in parallel: anomaly detection before send, targeted recovery on URSSAF rejections, per-payslip history. No firm can afford to miss a DSN, the solution is designed never to block.
Sage PaieSilaePayFitURSSAF
Tracfin and reinforced AML-CTF declarations
AI-assisted AML-CTF detection on subject engagements (corporate accounting, wealth management, transaction support): continuous analysis of atypical operations, partner escalation on threshold, Tracfin declaration generation with consultable history. Compliant with reinforced 2025-2026 ACPR and Bar-association controls.
TracfinSanction listsAMFConseil de l'Ordre
03Mobile and web applications
The day-to-day apps,
screen by screen.
For everything else (CRM, portals, scheduling, billing), we ship a custom application, on your design system and with your existing integrations.
Recurring engagement orchestration
All annual engagements (year-end accounts, tax return, situation, VAT, payroll) automatically scheduled, assigned to the right people, with deadline alerts and inter-task dependencies. Each engagement traces its time and margin.
SageCegidPennylaneAcd
Client-portfolio-oriented CRM
One client = one unique file with all their files, active engagements, documents, exchange history and opportunity pipeline. Shared across the team with fine-grained per-role permissions.
HubSpotPipedriveSellsy
Modern client portal
Your clients deposit documents from mobile or desktop, validate situations, sign returns electronically. Simple interface, adopted from month one, that frees your teams from manual collection.
FranceConnectDocuSignYousign
Profitability dashboard
For each engagement, each client, each team member: hours billed vs spent, gross margin, profitability rate. Files to renegotiate surface automatically before the annual billing.
Power BIMetabaseLooker
04Regulations & integrations
What we handle natively,
no add-ons.
Business compliance and key integrations are not options, they are prerequisites built in from the start.
Ordre des experts-comptables compliance
Ethics, professional secrecy, traceability of acts
GDPR
Personal data of clients and team, isolated multi-tenant
VAT anti-fraud law
Reliable audit trail (PAF), invoice tamper-proofing
Chorus Pro
Mandatory B2G electronic invoicing
Factur-X / EN 16931
B2B electronic invoicing (progressive rollout 2026-2027)
Sapin II law
Anti-corruption, decision traceability
05Frequently asked questions
Answers to the questions we get in meetings.
- How long to replace our existing tools?
- A baseline application is delivered in 3-5 weeks. Migration of data from Sage, Cegid or another tool takes 1-2 additional weeks depending on volume. We switch over team member by team member to avoid shutdown.
- Can we keep Sage for accounting and only replace satellite tools?
- Yes, that's even the most common mode. We synchronize bidirectionally with Sage (or Cegid, Pennylane) and only replace satellite tools (CRM, document store, client portal, billing outside accounting).
- Our clients hate portals. Why would yours be different?
- Because we design it for your clients, not your team. 2-click document upload from mobile, integrated signature, no account to create if you use FranceConnect. Measured on a 30-person firm: 82% real adoption after 3 months.
- Is the code ours? Can we leave Swoft without losing the application?
- Yes. IP is transferred to the client at delivery (or perpetual licence, depending on contract). Source code, data, infrastructure: you can host yourself or hand off to any third party.
- What if Sage changes its API?
- The Sage integration is encapsulated in an isolated adapter (DDD architecture). A Sage API change requires updating that adapter, 1-3 days of maintenance, without touching the rest of the application.
- Do you handle B2B electronic invoicing (Factur-X, 2026 reform)?
- Yes. Chorus Pro is integrated today for B2G. For the B2B reform we support the Factur-X format and emission via PDP (Plateforme de Dématérialisation Partenaire) once your PDP choice is made.
06Related industries
On the boundary?
Mixed firms (accounting + audit, accounting + advisory, accounting + legal) draw from several industries. Here are those that share the most challenges.
07Articles & veille
L'actualité Accounting firm, décryptée.
Réglementations, virages business, sous-domaines en mutation : ce que notre pôle veille publie sur le secteur Accounting firm.
Factur-X / PDP: the 2026 schedule seen from the accounting firm
Glossaire connexe
Le cadre réglementaire qui structure Accounting firm.
Les réglementations qui pèsent sur les choix logiciels (appliquées, partielles, ou imminentes), décryptées par notre pôle veille.
Facturation électronique B2B obligatoire en France ImminentFactur-X / PDP
Facturation électronique B2B obligatoire en France
Réforme française de la facturation électronique B2B. Réception au 1er septembre 2026 pour toutes les entreprises ; émission progressive 2026-2027.
- Accounting firm
- Construction & Site
- Light Industry
- +1
An accounting firm wanting to take back control of its engagements?
30 minutes, no sales pitch.
30 minutes to scope the perimeter, identify the necessary integrations (Sage, Cegid, Pennylane…) and tell you honestly whether Swoft is the right tool for your firm.