Tax Compliance Review (ECF) 2026: What It Does and How to Prepare

France's examen de conformité fiscale — commonly referred to by its acronym ECF — is a contractual compliance mission established by Decree n° 2021-25 of 13 January 2021 and the Ministerial Order of the same date. A qualified professional examines a defined 10-point audit trail and files a mission report (compte rendu de mission) directly with the DGFiP via the tax return EDI channel. For each point the professional validates, a director acting in good faith is protected from late-interest charges and standard penalties if the tax authority subsequently raises an assessment on that point.

The ECF does not prevent a tax audit. What it does is document the company's practices in a structured, verifiable way — and send a transparency signal to the administration — before any inspector arrives.

At a glance: The ECF is a voluntary contractual review of a 10-point fiscal audit trail; the mission report is filed with the DGFiP; it shields a good-faith director from penalties and late-interest charges on each validated point.

The ECF sits between two better-known mechanisms: the tax audit (contrôle fiscal) and the formal ruling (rescrit fiscal). It is neither. It is a private, contractual engagement in which the company instructs a qualified practitioner to review its accounting and tax practices against a checklist defined by ministerial order.

The professional issues a structured report. That report is filed with the DGFiP alongside the annual tax return. The administration acknowledges it but does not issue a formal position — that distinction separates the ECF from the rescrit fiscal, which generates a ruling the administration is bound by.

The Order of 13 January 2021 specifies ten examination areas. Each targets a recurring source of tax risk.

In practice, the points most frequently flagged on our ECF engagements relate to VAT chargeability — particularly for businesses with a mix of goods deliveries and services — and to the justification of provisions, where documentation gaps are common.

The decree limits the mission to qualified practitioners who accept contractual liability for their conclusions.

The practitioner's liability is direct: if a validated point later proves incorrectly assessed, the company has a contractual claim against the practitioner. This accountability structure distinguishes the ECF from internal self-assessments.

The protective effect is precise and bounded. For each point validated in the mission report:

• If the DGFiP raises an assessment on that point, the company — acting in good faith — is exempt from late-interest charges and standard penalties (majorations) on that point.
• The principal tax debt remains due if the assessment is correct on the merits.
• The company retains a claim against the ECF practitioner if the validation was wrong.

Late-interest charges in France accrue at 0.20% per month (2.4% per year — verify current rate at impots.gouv.fr). Standard penalties for good-faith adjustments typically run at 10%, rising to 40% or more where the administration establishes bad faith. On a significant assessment, the penalty shield can be worth considerably more than the ECF fee itself.

The rescrit fiscal remains the right tool for a one-off structural question (VAT regime for a new activity, qualification of a merger). The ECF covers the recurring accounting and tax practices of an entire financial year.

A well-prepared ECF produces a stronger report and costs less to complete. Assemble the following before instructing the practitioner.

1. FEC (Fichier des Écritures Comptables) — generated by the accounting software in DGFiP-specified format; run a basic technical validation before submission.
2. General ledger and trial balance for the period under review.
3. Purchase and sales journals with corresponding supporting documents (supplier and customer invoices).
4. Depreciation schedule — asset by asset, including component accounting where applicable.
5. Provisions schedule — economic or legal basis for each provision, quantification method, and any management-report reference.
6. VAT returns (CA3 or CA12) and their reconciliation against accounting turnover.
7. Tax returns (liasse fiscale) for the two preceding years to contextualise movements in key line items.
8. Significant contracts: leases, service agreements, intra-group arrangements if relevant.
9. Bank statements for the period (used to reconcile cash flows with the FEC).
10. Fixed asset register and acquisition invoices for assets purchased during the year.

The most common friction point we encounter is the FEC: a file that fails the DGFiP technical specification requires correction before any validation can be issued. Building FEC quality into the monthly close process eliminates this bottleneck.

Step 1 — Engagement letter: the practitioner and company sign a mission letter defining the period, scope, fees, and respective liabilities.

Step 2 — Document collection: the practitioner requests the items listed above and may ask follow-up questions on specific entries.

Step 3 — Point-by-point review: each of the 10 audit-trail points is assessed. Points where the practitioner identifies risk generate a discussion before any report is finalised.

Step 4 — Mission report: a structured document setting out the conclusion for each point — validated, not validated, or reserved — together with recommendations for any remediation.

Step 5 — Filing with the DGFiP: the report is transmitted electronically alongside the annual tax return, making the filing deadline the natural deadline for the mission.

The question comes up frequently. The practical answer is that an ECF is a known, bounded cost with measurable protective value; a tax audit is uncertain in timing, expensive to manage, and unlimited in potential exposure.

The ECF adds most value when:

• The company has complex VAT flows (mixed supplies, intra-EU transactions, multiple rates).
• Significant asset acquisitions or method changes occurred during the year.
• Provisions are material and rest on estimates.
• The company wishes to demonstrate cooperative behaviour towards the administration.

The ECF adds less value in simple structures — sole traders with a single activity, minimal fixed assets, and straightforward VAT — where the probability of a significant adjustment is low.

For finance directors and DAFs supervising multiple entities, rolling out an ECF across each structure in the group creates a consistent level of documented fiscal governance.

A Paris-based consulting firm (corporation tax, standard VAT regime) generates approximately €2 million in fees, partly billed in staged payments, with a provision for a client dispute of €120,000.

The ECF examines in particular:

• VAT chargeability: are these supplies of services (VAT due on receipt) or has a debit-basis option been filed? Does the company's VAT return practice match the elected regime?
• The dispute provision: is the risk probable, legally grounded, and quantified on an objective basis (correspondence, legal estimate)?

If both points are validated and the DGFiP later challenges VAT chargeability in a tax inspection, the company avoids late-interest charges and penalties on that point. On a two-year VAT difference across €2 million of turnover, the accessory charges avoided can exceed the ECF fee several times over.

The ECF covers 10 defined points. Questions outside that scope — restructuring tax treatment, classification of an intangible asset, VAT regime for a new product line — require separate treatment, typically via a formal ruling.

A coherent tax risk strategy generally combines:

• An ECF each year for the recurring accounting and tax layer.
• Targeted rulings for specific, high-stakes one-off questions.
• Ongoing dialogue with your tax accountant during the year to surface risk before the close, rather than after it.

Updated: 2026-05-26. This article is for information only and does not replace personalised professional advice. For your specific situation, consult a registered expert-comptable or qualified tax adviser. Rates, thresholds, and conditions may change — refer to impots.gouv.fr and legifrance.gouv.fr for current rules.