IT contract lawyer in Paris: read, negotiate SLAs and prepare for reversibility.

Start with the article that lists the contractual documents and sets their order of priority. It says whether the general terms, the service annex, the security policy or a page published online form part of the contract. Article 1119 of the French Civil Code (Code civil) makes the effect of general terms depend on their being brought to the other party's attention and accepted, and gives priority to the special terms where the two conflict. The Court of Cassation requires that this knowledge be established: it set aside a judgment in which "the terms of the engagement letter did not establish that these general terms had been brought to the attention of" the signatory (our translation) (Cass. com., 17 June 2026, No. 24-22.736). The lower courts are sometimes satisfied with little: an express reference and prior delivery were enough to make a host's cap enforceable (CA Versailles, 12th ch., 19 May 2022, No. 20/05106). Then read, in this order, the liability clause, the service level annex, the term and the termination clause. These decide what your company will pay, receive or be able to recover when the relationship deteriorates. Finally, look for any clause allowing the supplier to change its terms or prices on its own, and ask for a dated version to be annexed to the signed contract.

A service level commitment is worth something only if it can be measured. Write down the indicator, for example a monthly availability rate, a response time or a recovery time, then the scope covered, the exclusions and the calculation period. The measurement method matters as much as the figure: who measures, with what tool, and how the customer gets access to the readings. In a hosting dispute, the Versailles Court of Appeal held that "Claranet's essential obligation is to make the hosted data and applications available, with an availability rate of 99.5%" (our translation) (CA Versailles, 12th ch., 19 May 2022, No. 20/05106). It found the incident report drafted by the host alone insufficient, for lack of outside corroboration, to establish the software cause it relied on to escape liability, recalling that "no one can provide evidence for themselves" (our translation) (same judgment). The customer is therefore well advised to keep its own records: time-stamped tickets, monitoring screenshots, written exchanges. The contract can also provide for a monthly report signed by the supplier and a procedure for disputing it within a short time limit. Scheduled maintenance windows should be capped and announced in advance, failing which they absorb most of the downtime and strip the commitment of its practical value.

A fixed sum payable on breach falls in principle under Article 1231-5 of the French Civil Code (Code civil). The judge may moderate it if it is manifestly excessive, or increase it if it is derisory, and may reduce it in proportion to the benefit obtained from partial performance. Any contrary clause is deemed unwritten. Unless performance has become definitively impossible, the penalty requires formal notice to the debtor. The characterisation does not depend on the name given to the clause: the Court of Cassation held that an indemnity intended to compensate on a fixed basis for failure to observe a notice period was a penalty clause, then applied it in full, on the ground that it "does not appear disproportionate in that it has no deterrent character and is limited to maintaining the financial balance of the contract" (our translation) (Cass. com., 17 September 2025, No. 24-15.287). That case concerned press distribution, not an IT contract. In practice, many service annexes provide for modest service credits, capped at a percentage of the fee and presented as the only compensation due. The point to negotiate is therefore twofold: the level of those credits, and whether or not they exclude compensation for the loss actually suffered in the event of a serious or repeated breach.

Yes. In a dispute between a software package publisher and its customer, the court of appeal had set aside the caps on the ground that the contracts had been wiped out. The Court of Cassation quashed that judgment, holding that "It follows from these provisions that where a contract is terminated for non-performance, clauses limiting compensation for the consequences of that non-performance remain applicable" (our translation) (Cass. com., 13 November 2025, No. 22-22.225). The award against the publisher, which exceeded three million euros, was quashed on that point. This decision is unfavourable to a customer who thought it could shed the cap by obtaining termination. It was given under the provisions applicable before the 2016 reform, but it settles a question of general scope. Termination is therefore not enough to set the cap aside: its validity, its scope and the statutory or contractual exceptions must be examined. On validity, Article 1170 of the Civil Code deems unwritten a clause that deprives the essential obligation of its substance; as a separate question, Article 1231-3 limits compensation to foreseeable loss, unless there is gross or intentional fault. The negotiation therefore turns on the amount of the cap, its basis of calculation, whether it is annual or per incident, and written exceptions for data loss, breach of confidentiality and security failures.

Such a clause is common and takes effect. The Paris Court of Appeal ordered termination of a telephony contract at the operator's fault, after several weeks of outage, but rejected the company's claim for commercial loss: "the commercial loss, intended to compensate for lost profit and/or lost turnover, is caught by clause 14.1, which excludes compensation for this type of loss" (our translation) (CA Paris, pôle 5, ch. 11, 12 June 2026, No. 24/00786). The same clause excluded loss of data and damage to reputation. The judges considered that it did not release the operator from its obligation and did not deprive the customer of all compensation, so that no significant imbalance was shown. This decision is unfavourable to the customer. For a service that concerns your data, excluding loss of data amounts to excluding compensation for the main risk. It can be negotiated: deletion of the exclusion, a higher specific cap, or a quantified restoration obligation with a backup retention period. Loss of turnover can, for its part, be given a separate cap rather than a total exclusion, in particular where the service conditions the collection of payments or the taking of orders.

Reversibility means all the operations that allow the customer to take back its data, its access and the running of its system, alone or with a new supplier. Without a precise clause, the outgoing supplier's obligation remains limited. The Lyon Court of Appeal held that a host "had first and foremost to transmit the data in its possession but was not responsible for configuring the new equipment chosen by a new supplier, any more than for setting up the new equipment" (our translation) (CA Lyon, 3rd ch. A, 22 May 2025, No. 21/08139). The customer, which claimed more than €64,000 in migration costs, was unsuccessful; the court noted that the new supplier had itself started late. Conversely, in a case brought by a customer whose managed services contract did not regulate the exit, the judge hearing the urgent application held that "the lack of reversibility of the data prevents the migration, which is nonetheless essential, to another managed services provider" and ordered the handover of access subject to a penalty payment (our translation) (TAE Marseille, référé, 17 June 2025, No. 2025R00202). This was an order made urgently, at first instance. The clause should therefore set out the inventory of items returned, their format, the handover of administrator accounts and keys, the operating documentation, a period of assistance to the successor supplier, continuity of the service during the transition, and the price of these services. For personal data, Article 28 of Regulation (EU) 2016/679 (GDPR) already requires the processing contract to provide, at the controller's choice, for the deletion or return of the data at the end of the services, and for the destruction of existing copies, unless Union or Member State law requires them to be retained.

A deletion-on-termination clause may take effect, but it cannot be read in isolation: the data retrieval rights that apply to the service, the controller's choice for personal data and statutory retention obligations all limit it. For a 2023 contract, the Paris Court of Appeal, ruling on an urgent application, refused an expert assessment requested by a company whose online backups had been erased. The general terms announced permanent deletion when the option was terminated, and the court noted that "the contract does not impose on Nemoxia an archiving obligation, only a backup service was subscribed" (our translation) (CA Paris, pôle 1, ch. 2, 9 April 2026, No. 25/11299). The company had been informed several months in advance and could retrieve its files at any time; the action it contemplated was held to be manifestly bound to fail. This urgent-application decision is unfavourable to the customer and does not decide the merits, but it shows the weight of a deletion clause that has been accepted. Since 12 September 2025, for the data processing services it covers, Article 25 of Regulation (EU) 2023/2854 requires a retrieval period of at least thirty calendar days after the transition period, which rules out immediate deletion within its scope. Before signing, distinguish backup, which protects against an incident, from archiving, which preserves data over the long term. Require a retrieval period after the end of the contract, prior notification before any deletion and a certificate of erasure. Before terminating, check that the new supplier has actually taken over and verified all the data.

Yes, for data processing services within the meaning of Regulation (EU) 2023/2854, which has applied since 12 September 2025 under its Article 50. Article 23 prohibits the provider from imposing commercial, technical or contractual obstacles to switching provider. Article 25 requires a written contract providing in particular for a maximum notice period of two months to start the switch, a transition period of no more than thirty calendar days, except where technically impossible, reasonable assistance, an exhaustive list of exportable data, a period of at least thirty calendar days to retrieve the data, starting after the transition period, then full erasure of the customer's exportable data and digital assets at the end of that period or of a longer agreed period, once the switch has been completed. Article 29 limits switching charges to the costs directly incurred until 12 January 2027, then prohibits them from that date. The regulation contains other regimes and exceptions, and amendments were under discussion at European level in 2026; the version in force should be checked at the date of signature. For a customer, these rules provide a precise basis for negotiation: the proposed contract must already contain these clauses, and their absence is a point to raise before committing. For a software publisher or host, they require a review of the contract template and the schedule of exit charges.

Yes, where the contract provides for it and it is performed. The Paris Court of Appeal ordered a maintenance supplier's customer to pay the reversibility fee fixed by the contract, calculated on the average monthly remuneration. The customer argued that the services had not been performed, but the court recalled that "it is for the party relying on the defence of non-performance to establish that non-performance" (our translation) (CA Paris, pôle 5, ch. 10, 27 June 2022, No. 20/17603). A steering committee had brought the two parties together, documentation had been delivered and the customer had raised no reservation within the period provided, which allowed the first-instance judges to infer tacit acceptance of the services (same judgment). This decision is unfavourable to the customer. It suggests negotiating the price of reversibility at signature and defining its deliverables: exit plan, inventory, data transfer, documentation, handover sessions. The customer must then state its reservations in writing, within the contractual period, if it considers the service incomplete. For services within the scope of Regulation (EU) 2023/2854, Article 29 limits switching charges to the costs directly linked to the switch until 12 January 2027, then prohibits them; Article 31 exempts services custom-built for a customer and not offered on a large scale, and this prohibition does not, on its own, remove standard service fees or early termination penalties, which Article 29 treats separately.

Only on strict conditions. Article 1219 of the Civil Code allows a party to refuse to perform its own obligation if the other party's non-performance is sufficiently serious, and Article 1220 allows suspension in advance where it is clear that the other party will not perform when due and the consequences of that non-performance are sufficiently serious for the party suspending, which must give notice of it as soon as possible. In a human resources software case, the customer had put the project on hold a few days before going live, then signed with a competitor without terminating. The Paris Court of Appeal held that it "fails to show sufficiently serious breaches by Peoplespheres justifying a defence of non-performance" (our translation) (CA Paris, pôle 5, ch. 11, 14 November 2025, No. 23/10778). It added that "As BBL Transport terminated the contracts only by letter of 18 February 2022, they were tacitly renewed" (our translation) (same judgment). The customer was ordered to pay €56,714.16. This decision, unfavourable to the customer, shows the order to follow: draw up a written list of the breaches, send formal notice, then terminate in the form provided for. An informal suspension leaves the contract, its due dates and its renewals running, even when the service is no longer used.

Where the parties continue to perform a fixed-term contract after its expiry, there is tacit renewal, which has the effects of a renewal (Article 1215 of the Civil Code). Many contracts provide for it themselves, with notice of non-renewal to be sent several months before expiry. In a telephony case, a customer had signed a number portability mandate to another operator, but it was not proved that the supplier had been informed of it before expiry. The Court of Cassation approved the judgment holding that the client company "remained bound by the contractual obligations laid down by the renewed contract" (our translation) (Cass. com., 25 June 2025, No. 24-12.074). The decision is unfavourable to the customer and is a reminder that changing supplier is not notice of non-renewal. In practice, enter the notice deadline as soon as you sign, give notice by a means that gives a verifiable date, and keep proof of receipt. In negotiation, ask for a short notice period, renewal for short periods, or the right to terminate at any time after the initial period. For an open-ended contract, either party may end it by observing the notice period provided or, failing that, a reasonable period (Article 1211 of the Civil Code).

It can be challenged where it results in an endless commitment. In an evolving IT equipment rental contract, every change to the equipment restarted a forty-two-month period. The court of appeal had dismissed the complaint of a perpetual commitment. The Court of Cassation quashed that judgment, criticising it for not having examined whether this mechanism deprived the lessee of the ability to adapt its equipment to the needs of its business, "unless it accepted the systematic renewal of the contract, thereby subjecting it to an infinite obligation" (our translation) (Cass. com., 11 May 2022, No. 19-22.015). The case was remitted: the Court did not itself hold that the commitment was perpetual, it required that point to be checked. The same mechanism is found in licence or subscription contracts where any extension of scope resets the term. Before signing, ask that additional orders follow the expiry of the main contract, or that they can be terminated with it. During performance, check the effect of an amendment or additional purchase order on the end date before signing it, because a modest addition can extend the whole contract.

It is lawful if it remains proportionate. The Court of Cassation holds that a stipulation that interferes with freedom to work and freedom to conduct a business is valid only if it is proportionate to the legitimate interests to be protected having regard to the purpose of the contract. In a judgment dismissing the appeal, it infers that "a party relying on such a clause must show that it is proportionate to the legitimate interests to be protected having regard to the purpose of the contract" (our translation) (Cass. com., 23 September 2026, No. 24-21.805). The clause appeared in the rules of a hardware store group, not in an IT contract, but the reasoning applies to any non-solicitation clause agreed between businesses. Managed services and professional services contracts often contain them, together with an indemnity equal to several months' salary. For the customer, the risk is measured at the time of reversibility, when it wishes to take a consultant who knows the system in-house. The negotiation concerns the duration, the scope of the people covered, the exception for unsolicited applications and the amount of the indemnity. For the supplier, the clause must be justifiable by training investment or the protection of identified know-how.

You send the draft contract or the current contract, its annexes, the general terms referred to and a few lines on your project: the service concerned, the data processed, the timetable, any expiry date. The firm examines these documents and identifies the clauses that bind your company, in particular the service levels, the redress provided, the term and the exit conditions. The preliminary review offered on this page is charged at €80. It makes it possible to determine whether a full review, a negotiation list or an approach to the supplier is useful, and on which points. No other amount is quoted before the documents have been examined, because the scale of the work depends on the length of the contract, the number of annexes and the state of the negotiation. Your exchanges with the firm are covered by professional secrecy, so sensitive elements of the project can be shared without reservation. If your situation already involves a dispute, for example an abandoned project or a prolonged outage, the page on IT litigation sets out the courses of action. For personal data entrusted to the supplier, the GDPR page completes this analysis.