How to map and reconcile French statutory accounts to group GAAP, step by step ?

Two distinct exercises, often confused

Mapping and reconciliation are not the same task, and treating them as one is where the trouble starts.

1. Mapping is structural. It is the fixed correspondence between each account in the French PCG and the line, dimension, or account in the group reporting chart. A PCG account 606300 (small equipment purchases) maps to a specific group expense line. Mapping is built once, maintained as accounts are added, and it is the backbone of every period's reporting.

2. Reconciliation is periodic. It is the recurring exercise of explaining the difference between the French statutory result and the group-GAAP result for the same period, line by line, adjustment by adjustment. Reconciliation depends on the mapping being correct first. A broken mapping produces a reconciliation that never ties out, and teams waste days hunting for differences that are actually mapping errors.

Get the mapping right and the monthly reconciliation becomes a short, controlled exercise. Get it wrong and every close becomes an investigation.

The six-step mapping method

This is the sequence we use when onboarding a French subsidiary into a group's reporting structure. Each step produces a documented artefact that the auditor can later test.

Step 1: inventory the French chart of accounts

Export the full active PCG account list from the French accounting system (the FEC file is the cleanest source, since it is the legally mandated extract). Identify which accounts carry balances, which are dormant, and which are subsidiary-specific extensions of the standard PCG. The PCG is class-based: classes 1 to 5 are balance sheet accounts, classes 6 and 7 are expense and revenue accounts. Group accounts that behave identically before deciding the mapping granularity.

Step 2: obtain the group reporting chart and its rules

Get the group's reporting chart of accounts, the group accounting manual, and the mapping rules for the parent's framework (IFRS or US GAAP). The group accounting manual is the authoritative document: it defines how each reporting line is built and what local data feeds it. If the group has not provided one, that gap is itself a finding to raise before mapping begins.

Step 3: build the mapping table

Create the account-by-account correspondence: French PCG account to group reporting line. Document the granularity decision (one-to-one, many-to-one, or one-to-many where a single PCG account splits across group lines). Flag every account where the French accounting treatment differs from the group treatment, because those flags become your reconciliation adjustments later. The mapping table is a controlled document, version-managed, with an owner.

Step 4: identify the GAAP differences that survive mapping

Mapping moves a balance from one label to another. It does not change the accounting treatment. Where French GAAP and group GAAP treat a transaction differently, mapping alone cannot reconcile them: an adjustment is required. Catalogue these differences now (the recurring ones are in the next section) so they are anticipated, not discovered.

Step 5: define the reconciliation bridge

Build the bridge that moves from French statutory result to group-GAAP result: statutory net income, plus or minus each documented adjustment, equals group-GAAP net income. The same logic applies to equity. Each adjustment line needs a calculation method, a supporting workpaper, and a deferred-tax consequence where relevant. This bridge is the deliverable the group auditor will scrutinise hardest.

Step 6: document, control, and hand over

Write the methodology memo: the mapping rationale, the adjustment policies, the deferred-tax approach, and the responsibilities for each monthly close. This is what protects the subsidiary when staff turns over or when an inspector or auditor asks why a treatment was chosen. Undocumented mapping is the single most common audit weakness we find in foreign-owned French subsidiaries.

The recurring reconciliation adjustments, by topic

These are the differences that survive mapping and require an explicit adjustment every period. They are the heart of any French GAAP to IFRS or US GAAP reconciliation.

Leases

Under the PCG, an operating lease is recorded as a rental expense in class 6, off the balance sheet. Under IFRS 16, almost every lease is capitalised as a right-of-use asset with a matching lease liability. Under US GAAP (ASC 842), leases are also on balance sheet, though the expense profile differs from IFRS 16. This is one of the largest and most common reconciliation items, and it cascades into depreciation, interest expense, and deferred tax.

Retirement and employee benefit provisions

French GAAP allows retirement benefit commitments (indemnités de fin de carrière) to be disclosed off-balance-sheet under an ANC option, rather than provisioned. IAS 19 mandates full provisioning with actuarial valuation, and US GAAP similarly requires recognition. The adjustment booking the provision, and its actuarial movement, recurs every period.

Goodwill and intangibles

The PCG amortises goodwill over its useful life, defaulting to 10 years where no longer justified period exists. IFRS (IAS 36) prohibits goodwill amortisation and requires an annual impairment test instead. The reconciliation reverses French amortisation and substitutes any impairment. French GAAP also prohibits the revaluation of intangible assets and applies stricter capitalisation criteria, which creates further adjustments for internally developed intangibles, where IFRS permits capitalisation once recognition criteria are met.

Revenue recognition

French GAAP recognises revenue when the risks and rewards of ownership transfer, a relatively conservative trigger. IFRS 15 and US GAAP (ASC 606) apply a five-step model built around the transfer of control, which can shift the timing and amount of recognised revenue. For subsidiaries with long-term contracts, bundled deliverables, or variable consideration, this is a material recurring adjustment.

Asset valuation and depreciation

French GAAP is anchored in historical cost. IFRS permits revaluation models for property, plant, and equipment. Depreciation methods and useful lives can also diverge, especially where the French treatment has been influenced by tax-driven choices. Each divergence is a reconciliation line with a deferred-tax tail.

Provisions and conservatism

French accounting is more conservative, recognising potential losses earlier. This can create provisions under French GAAP that IFRS or US GAAP would not recognise on the same facts, or would measure differently. These reverse and re-measure in the bridge.

What changed with the PCG modernisation: the ANC 2022-06 regulation

This is the part most English-language reconciliation guides have not absorbed, and it changes the deliverable.

The ANC 2022-06 regulation (adopted 4 November 2022) modernises the Plan Comptable Général and applies mandatorily to financial years opened from 1 January 2025 (1 January 2026 for social housing bodies). It is the most significant overhaul of French statutory financial statements in years. The changes that matter for mapping and reconciliation:

• Redefinition of the exceptional result (résultat exceptionnel): the criteria for classifying items as exceptional are tightened (PCG art. 513-5), which shifts items between operating and exceptional and affects how the French P&L maps to a group's by-nature or by-function lines.

• Removal of the expense-transfer technique (transferts de charges, account 79): items previously routed through account 79 are now recorded directly, changing the population of accounts your mapping table has to handle.

• Modernised and reduced set of financial statement models (balance sheet, income statement) and a reorganised notes section (annexe), with updated standardised tables for fixed assets, provisions, inventories, and payables.

The ANC stated that first application is prospective, with no retrospective impact on prior accounts beyond the reclassifications needed to fit the new models. The CNCC and CNOEC published a joint FAQ on 11 December 2025 clarifying first-application treatment for 31 December 2025 closings. Source: Autorité des Normes Comptables, ANC regulations.

The practical consequence: a French closing under the new PCG is not identical to the old one. First application is a change of method that must be disclosed in the notes. Any mapping table built before 2025 should be reviewed against ANC 2022-06, because account-level reclassifications (the exceptional result and the disappearance of account 79 in particular) directly affect how French balances flow to group reporting lines. If nobody has checked your mapping against it, that review is overdue.

Common failure points, and how to prevent them ?

The recurring ways mapping and reconciliation break, drawn from remediation work on foreign-owned French subsidiaries.

• Undocumented mapping. The mapping lives in one person's spreadsheet, with no methodology memo. When that person leaves, the logic leaves with them, and the next close becomes reverse-engineering. Prevention: a version-controlled mapping table with a written rationale.

• Treating a GAAP difference as a mapping problem. Teams re-map accounts trying to make the reconciliation tie out, when the real issue is an unbooked adjustment (a lease, a provision). This corrupts the mapping to paper over a reconciliation gap. Prevention: the Step 4 catalogue of GAAP differences, kept separate from the mapping table.

• Ignoring deferred tax on adjustments. Every reconciliation adjustment that affects the result usually has a deferred-tax consequence. Skipping it produces a bridge that ties on pre-tax income but not on net income or equity. Prevention: a deferred-tax column on every adjustment line.

• Stale mapping after a chart change. The group adds reporting lines, or the subsidiary opens new PCG accounts, and the mapping is not updated. New accounts fall into a default bucket and distort the group view. Prevention: a mapping maintenance step in the monthly close checklist.

• Currency translation confusion. French statutory accounts are in euros. Where the group reports in another currency, translation interacts with the reconciliation, and teams sometimes mix translation differences with GAAP adjustments. Prevention: translate after reconciling, never during.

Where Vachon fits ?

This method is the groundwork. Running it every month, defending it in a group audit, and keeping it current through changes like ANC 2022-06 is the recurring work we do for foreign-owned French subsidiaries.

We build and maintain the mapping table, run the monthly or quarterly reconciliation bridge, document the adjustment policies to an audit-ready standard, and act as the bilingual interface between your French statutory reality and your group consolidation team. The deliverable your parent's auditor receives is built to be tested, not just to look complete.

For the full service context, see our French GAAP and US GAAP reconciliation services, our consolidation outsourcing in France, and our broader financial statement preparation in France. The mapping and reconciliation method on this page underpins all three.

Build the method once, run it cleanly every close

If your French subsidiary's mapping has never been documented, if your reconciliation bridge does not tie out cleanly at group audit, or if nobody has reviewed your setup against ANC 2022-06, the next step is a short technical review. We will look at your current mapping table and reconciliation bridge, identify the gaps, and give you a method you can run and defend.

Book a mapping and reconciliation review with Vachon