Introduction
The accounting obligations for SMEs in France are defined by the French Commercial Code (Art. L.123-12 et seq.) and the General Accounting Plan (PCG). In 2026, they vary according to business size (micro-enterprise, SME, ETI) and include keeping regular accounts, preparing annual accounts and, since the e-invoicing reform, new data transmission obligations.
This exhaustive guide covers all obligations for each business size, document retention periods, e-invoicing and penalties for non-compliance.
Basic accounting obligations for SMEs in 2026
Keeping regular and truthful accounts
Every business subject to the actual tax regime (corporate tax or income tax in the BIC or BNC category by option) must keep regular accounts according to Article L.123-12 of the Commercial Code. This obligation is based on several principles:
- Chronological recording: each operation must be recorded in chronological order, with the date, amount and counterpart mentioned
- Truthfulness: entries must faithfully reflect the economic reality of operations
- Permanence: accounting methods must be applied consistently from one financial year to the next
- Documentation: each entry must be justified by an original document (invoice, contract, bank statement)
Accrual accounting vs. cash accounting
The distinction between these two methods is fundamental :
Accrual accounting (mandatory for corporate tax subjects) :
- Revenue and expenses are recorded when acquired or incurred, regardless of the payment timing
- Unbilled invoices and invoices to be issued must be recorded at year-end
- Most comprehensive method, giving a true picture of results
Cash accounting (possible for certain activities) :
- Revenue and expenses are recorded upon receipt or payment
- Simpler, suitable for micro-enterprises and liberal professionals under income tax
- Does not give a true picture of results in case of significant timing differences
Practical consequences: a business under corporate tax cannot use cash accounting. An SCI under corporate tax must keep accrual accounts.
Mandatory accounting documents
The journal (livre journal)
The journal records, in chronological order, all operations carried out by the business. It must be kept daily and contain no blanks or crossings out.
Formal requirements:
- Pagination and greffe (commercial court registry) stamp
- Conservation for 10 years
- Paper or digital format accepted, provided it is unalterable
Minimum content per entry:
- Date of operation
- Supporting document number
- Debit and credit amount
- Description of operation
- Assigned account number
The general ledger (grand livre)
The general ledger is the transcription of all journal entries into individual accounts. It allows verification of each account's balance.
Elements to find:
- List of all accounts with their debit and credit movements
- Balance of each account at each date
- Traceability of each operation from the supporting document
The inventory book (livre d'inventaire)
The inventory book lists the assets and liabilities at the balance sheet date. It must be prepared annually and contain:
- Inventory items (inventory, receivables, payables)
- Depreciations applied
- Provisions made
- The year's result
The inventory book must be signed by the director and kept for 10 years.
Annual accounts
Annual accounts comprised three mandatory documents:
The balance sheet:
- Assets: fixed assets, current assets, prepaid expenses
- Liabilities: equity, provisions, debts
- Shows the financial position at the balance sheet date
The income statement:
- Expenses: operating expenses, financial expenses, exceptional expenses
- Revenue: operating revenue, financial revenue, exceptional revenue
- Shows the formation of results (profit or loss)
The legal notes (annex):
- Supplementary information to the balance sheet and income statement
- Information on accounting methods used
- Information on commitments and off-balance sheet items
Thresholds for simplified presentation (qualifying as "micro" or small entities):
- Total balance sheet < €4M
- Turnover < €8M
- Workforce < 50 employees
Small businesses may present simplified annual accounts.
Thresholds and obligations by business size
Micro-enterprise (no accounting required)
Self-employed individuals under VAT exemption (micro scheme) have no accounting obligations, except:
- Keeping a revenue book (for BIC)
- Keeping a purchase register (for BNC if threshold > €82,800)
- Keeping supporting documents
Exception: micro-entrepreneurs who exceed the VAT exemption thresholds move to the simplified or normal actual regime with full accounting obligations.
Small employer (no standard-format annual accounts)
Businesses qualifying as small businesses according to the following thresholds:
- Total balance sheet < €4M
- Turnover excl. VAT < €8M
- Workforce < 50 employees
Obligations:
- Full accounting required
- Simplified annual accounts permitted
- Filing accounts with the registry (mandatory)
- Partial publication in Bodacc (thresholds to check)
SME (normal accounting)
Businesses qualifying as SME according to:
- Total balance sheet < €50M
- Turnover < €50M
- Workforce < 250 employees
Obligations:
- Full accounting
- Standard-format annual accounts
- Management report (mandatory except for exemption)
- Filing accounts with the registry
- Publication in Bodacc
ETI and large businesses
Intermediate-size enterprises (ETI) and large businesses have enhanced obligations:
- Consolidated accounts mandatory
- Corporate governance report
- Extra-financial performance declaration (DPEF) beyond certain thresholds
- Legal audit by a Statutory Auditor (CAC)
Document retention periods
Legal periods by document type
| Document | Retention period |
|---|---|
| Journal | 10 years |
| General ledger | 10 years |
| Inventory book | 10 years |
| Annual accounts | 10 years |
| Supporting documents (customer/supplier invoices) | 10 years |
| Tax returns | 10 years |
| Payslips | 5 years (URSSAF) / 50 years (retirement) |
| Employment contracts | 5 years after contract end |
| Social documents (DSN) | 5 years |
| Property titles | 30 years (if in doubt) |
Electronic archiving: what rules?
Electronic archiving is permitted under conditions:
Requirements:
- Unalterable and indelible format (PDF/A, structured XML)
- Certified timestamping
- Guaranteed integrity (digital fingerprint)
- Accessibility throughout the retention period
FEC (Accounting Entries File): must be kept in CSV or XML format for 10 years and be transmittable to the tax authority upon request.
E-invoicing: status 2026
The ongoing reform
France is implementing mandatory e-invoicing for all VAT-registered businesses. The implementation schedule is as follows:
| Date | Obligation |
|---|---|
| 1 September 2026 | Mandatory reception of structured invoices (all businesses) |
| 1 January 2027 | Mandatory issuance for large businesses (> 5,000 employees) |
| 1 January 2028 | Mandatory issuance for ETIs (> 250 employees) |
| 1 January 2029 | Mandatory issuance for SMEs and micro-enterprises |
Accepted invoice formats
| Format | Status |
|---|---|
| Factur-X (PDF + XML) | Recommended format, compatible with most software |
| UBL (Universal Business Language) | Structured XML format |
| CII (CORE Invoice) | Emerging format |
| Simple PDF | Not accepted for B2B exchanges since 2024 |
The invoicing circuit
- Issuance: the issuing business generates an invoice in structured format
- Transmission: the invoice goes through a PDP (Partner Dematerialisation Platform) or the public portal (Chorus Pro for public sector)
- Reception: the recipient receives the invoice via their PDP
- Conservation: both parties keep the invoice for 10 years
Dematerialisation Platforms (PDP)
PDPs are private operators approved by the administration that transmit invoices between businesses. In 2026, several dozen PDPs are approved. The choice of PDP is free for businesses.
The FEC (Accounting Entries File)
Definition and obligation
FEC is a standardised computer file containing all accounting entries for a financial year. It is mandatory for:
- All businesses subject to corporate tax
- Businesses subject to income tax in the BIC category by option
Format: CSV or XML file, in accordance with the administration specifications.
FEC contents
FEC must contain for each entry:
- Journal code (description)
- Entry date
- Supporting document number
- Supporting document date
- Account number (7 digits)
- Entry description
- Debit amount
- Credit amount
- Document identifier (to link lines)
Retention and transmission
Retention: 10 years, in unalterable format
Transmission to administration: FEC must be transmitted to the tax authority upon request as part of an audit. In case of audit, the production deadline is generally 30 days.
Penalties: in case of absence or irregularity of FEC, a penalty of €5,000 may be applied, without prejudice to the adjustments related to the substance.
Penalties for non-compliance
Failure to keep accounts
Failure to keep regular accounts constitutes a tax offence penalised by:
| Offence | Penalty |
|---|---|
| Keeping irregular accounts | 10% to 25% surcharge on duties |
| Absence of accounts | 40% surcharge on duties |
| Insufficient accounts | 10% surcharge + rejection of expenses |
| Complicity in accounting failure | Additional surcharge |
Failure to file accounts
Non-filing of annual accounts with the commercial court registry exposes to:
- A civil fine of €1,500 to €3,000
- Mandatory insertion in Bodacc
- Refusal of access to public procurement
E-invoicing violations
From September 2026, failure to receive electronic invoices will be penalised by:
- A penalty of €500 per invoice not received in the correct format
- A risk of rejection of expense deductibility for the recipient
Summary table of obligations by size
| Obligation | Micro | Small | SME | ETI |
|---|---|---|---|---|
| Regular accounting | No (revenue log) | Yes | Yes | Yes |
| Annual accounts | No | Simplified | Normal | Normal + consolidated |
| Legal notes | No | Simplified | Full | Full |
| Management report | No | Exemption possible | Yes | Yes |
| Registry filing | No | Yes | Yes | Yes |
| Statutory auditor | No | No | No (optional) | Yes |
| FEC | No | Yes | Yes | Yes |
| DSN | According to staff | According to staff | Yes | Yes |
| E-invoices | Reception 2026 | Reception 2026 | Reception 2026 | Reception 2026 |
Questions fréquentes
What are the penalties for not keeping accounts?+
Failure to keep regular accounts constitutes a serious tax offence. Absence of accounts incurs a 40% surcharge on assessed duties. In case of insufficient or irregular accounts, a 10% to 25% surcharge may be applied, and the administration may reject expenses whose justification is not provided.
Does a micro-enterprise have to keep accounts?+
No, micro-entrepreneurs under VAT exemption have no proper accounting obligations. They simply must keep a revenue book (for BIC) or a purchase register (for BNC over €82,800), and keep their supporting documents for 10 years. However, as soon as they exceed the VAT exemption thresholds, they move to the actual regime with full accounting obligations.
When must I file my annual accounts with the registry?+
Annual accounts must be filed with the commercial court registry within one month of their approval by the general meeting. For financial years closed on 31 December, the deadline is therefore 31 January of the following year (or the first following business day).
What is FEC and who is concerned?+
The Accounting Entries File (FEC) is a standardised file containing all accounting entries for a financial year. It is mandatory for all businesses subject to corporate tax and must be kept for 10 years. In case of a tax audit, it must be produced within 30 days. FEC is in CSV or XML format according to precise specifications.
Is e-invoicing already mandatory?+
In 2026, the obligation to receive electronic invoices came into force on 1 September 2026 for all businesses. The issuance obligation is staggered by business size: large businesses in 2027, ETIs in 2028, SMEs and micro-enterprises in 2029.
How long must I keep my invoices?+
Invoices must be kept for 10 years, whether in paper or digital format. For payslips, the period is 5 years for URSSAF and up to 50 years for retirement. Employment contracts must be kept 5 years after the end of the contract.
Article written by Hayot Expertise
Chartered Accountant, registered with the Institute of Chartered Accountants.
Regulated French accounting and audit firm based in Paris 8, built to support companies across France with a digital and decision-oriented approach.
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