Collection notice: act quickly (2-month guide)

by | Feb 9, 2026

Avis de Mise en Recouvrement: Comprendre et Agir

Have you received a collection notice from the tax authorities? This document marks the start of a forced collection procedure for your tax debt. It is essential to understand its legal scope and the deadlines for taking action. If you react quickly, you may be able to dispute the debt or obtain a deferment of payment.

What is a Avis de Mise en Recouvrement?

The “avis de mise en recouvrement” (AMR) is an administrative act by which the tax authorities demand payment of a tax debt. Unlike the classic tax assessment notice, it is issued following a tax audit or spontaneous regularization without payment. It mainly concerns direct taxes such as VAT, corporate income tax and social security contributions.

This deed constitutes the enforceable title enabling the Treasury to take legal action. It must state the exact amount of the debt, its nature, and the remedies available. Without these compulsory details, the AMR can be contested on grounds of formality, and its notification triggers a strict deadline for reaction.

AMR Obligatory Mentions

To be valid, the collection notice must contain several essential elements. The absence or inaccuracy of these details constitutes grounds for dispute.

Debt identification

The AMR must include specific mandatory information: the nature of the tax concerned (VAT, corporate income tax, social security contributions), the tax period, the detailed amount of the principal, as well as clearly distinguished penalties and interest for late payment. Each item must be justified by reference to the applicable legislation, enabling the taxpayer to verify the legitimacy and accuracy of the tax claim.

The AMR is obliged to inform the taxpayer of the remedies available and the deadlines for exercising them, failing which the collection procedure will be cancelled. You generally have two months in which to contest the assessment, in accordance with article L281 of the LPF.

Time limits for contesting an AMR

Time is on your side as soon as you receive your collection notice. There are strict deadlines for contesting your claim, and exceeding them can deprive you of any recourse.

Claim deadline

You have two months from notification of the AMR to lodge a contentious claim with the public accountant mentioned on the notice. This time limit for lodging an L281 claim is mandatory and cannot be extended, making prompt action essential to safeguard your rights.

Opposition to prosecution

If the authorities initiate enforcement proceedings, you can lodge an objection with the enforcement judge within two months. This procedure temporarily suspends the debt collection process, and must be based on serious grounds relating to the formal legality of the collection procedure.

Forced Collection Measures

In the absence of payment or dispute, the tax authorities may resort to coercive measures to recover its debt.

Third-party notices

The“avis à tiers détenteur ” (ATD) allows the French Treasury to directly seize your bank accounts, receivables or other assets without prior judicial authorization. This forced collection measure can block all your available funds, making it one of the tax authorities’ most coercive tools.

Third-party administrative seizure

SATD is an enhanced form of ATD for large tax debts, enabling you to seize wages, rent or regular income. You can contest the SATD within two months on grounds of procedural irregularity or extinction of the debt.

Stay of Payment: A Temporary Solution

If you dispute the validity of the debt, you can request a stay of payment. This suspends payment of the debt while your claim is examined.

Deferment of payment is not automatic, and requires an express request. For amounts in excess of 4,500 euros, the tax authorities may require guarantees, the sufficiency of which is subject to their discretion. Below this threshold, no security is required.

Defense strategies in the face of AMR

Faced with a collection notice for direct taxes or other tax debts, there are several strategies you can deploy, depending on your situation. The choice of the appropriate strategy depends on the nature of the debt, its formal regularity and your financial capacity to pay the sums claimed.

Checking formal regularity

Examine the AMR carefully for any formal defects, which are strong grounds for contestation. Absence of a signature, failure to include obligatory information, errors in calculating the sums due, or inaccuracy as to the nature of the tax may justify cancellation of the deed. This formal verification must be carried out systematically as soon as the notice is received, as these procedural irregularities are often the most effective arguments for suspending collection.

Contesting the substance of the debt

If you believe that the tax debt is unfounded, you must contest its principle by demonstrating a legal or factual error on the part of the tax authorities. This requires a well-documented and well-argued case, particularly to establish the existence of a compensable tax claim or to challenge the tax calculation.

Negotiating a settlement plan

If the debt is justified, but you are experiencing cash-flow difficulties, you can apply to the tax authorities for a payment schedule. This solution avoids the need for compulsory enforcement, provided you can justify your financial situation and scrupulously respect the payment schedule.

The importance of legal support

Faced with the complexity of debt collection procedures, the assistance of a tax lawyer is often decisive. A professional in tax law masters the subtleties of procedure, and can optimize your defense while respecting the professional secrecy that protects your exchanges.

The lawyer analyzes the legality of the AMR and develops a defense strategy tailored to your situation. As appeal deadlines are strict, prompt intervention maximizes your chances of success, preserving your rights while limiting the financial consequences.

Frequently asked questions

A Avis de Mise en Recouvrement raises many questions for taxpayers and companies. Here are the answers to the most frequently asked questions about this document and the steps to take.

What is a Avis de Mise en Recouvrement?

An Avis de Mise en Recouvrement (AMR) is an administrative document which constitutes an enforceable title enabling the administration (URSSAF, taxes, etc.) to recover sums due. It generally follows a tax or social security audit, and details the amounts claimed, including principal, penalties and surcharges. This deed enables the administration to initiate enforced collection measures without the need for a prior judgment.

What are the legal deadlines for responding to a collection notice?

The legal deadline for contesting a Notice of Assessment is two months from the date of notification. This time limit is strict and mandatory. Once this period has elapsed, the AMR becomes final and can no longer be contested on its merits. It is therefore crucial to act promptly on receipt of the document to preserve your right of recourse and avoid forced collection proceedings.

How do I contest a Notice of Assessment?

To contest an AMR, you must lodge an objection with the director of the creditor organization within two months. The objection must be substantiated and accompanied by supporting documents. In the event of rejection, you can take your case to the appropriate court (court for URSSAF, administrative court for tax authorities). It is advisable to check calculations, contribution bases and the correct application of regulations, in particular through a rigorous accounting and tax audit.

Is it possible to obtain a payment extension following a collection notice?

Yes, it is possible to request an instalment plan or payment extension from the creditor organization. This request must be made quickly, and must justify temporary financial difficulties. The authorities examine each request on a case-by-case basis. Granting an extension does not prevent the AMR from being contested on its merits. It is advisable to present a realistic payment plan and provide the necessary financial documents.

What are the consequences of not responding to a collection notice?

Failure to respond within the deadline will have serious consequences. The AMR becomes final and indisputable. The administration can then initiate forced collection measures: seizure of bank accounts, seizure of sales, mortgages, or opposition à tiers détenteur. Late payment surcharges and interest continue to accrue, significantly increasing the debt. What’s more, you lose all possibility of contesting the validity of the sums claimed.

Why call in a tax lawyer when faced with a Notice of Assessment?

A tax lawyer provides the legal expertise you need to analyze the legality of the AMR, identify any formal or substantive flaws, and devise an appropriate defense strategy. He can negotiate with the authorities, prepare contentious appeals and represent you in court. His intervention maximizes your chances of obtaining a reduction or cancellation of the debt, while respecting strict procedural deadlines.

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