B2B Cold Calling in 2026: Opt-In, the End of Bloctel, and What Remains Permitted

You caught the headline somewhere in a news feed: "cold calling will be banned in August 2026." If you prospect businesses over the phone, those words probably made your stomach drop. Do you have to stop calling? Do you need proof of consent before dialling each number? Has your entire sales activity become illegal overnight?

The short answer will reassure you: no, not for B2B. The reform taking effect on 11 August 2026 primarily targets the private individual at home — the person interrupted over dinner to be sold replacement windows. Calling a professional on their work line to discuss matters relevant to their business remains possible, provided you know the rules. This article lays it all out, with official sources.

What the law of 11 August 2026 changes: the shift to opt-in

From 11 August 2026, any unsolicited cold calling of a consumer is prohibited by default. In practical terms, the system flips from opt-out (where you could call as long as the person had not registered their objection) to prior consent (opt-in, where you need an explicit agreement before calling). This is a complete reversal of logic.

This change stems from the law of 30 June 2025, whose provisions on cold calling apply from 11 August 2026: any unsolicited approach will be prohibited, except where the consumer has given prior consent or an existing contract is in place (economie.gouv.fr, 2026). The key word here is consumer. As we will see, it draws the entire boundary between what is now prohibited and what remains permitted.

Why B2B cold calling in 2026 is not subject to the opt-in requirement

B2B cold calling in 2026 is exempt from the prior consent requirement because the legislation explicitly targets the consumer — meaning the private individual acting for personal purposes. Calling a professional on their work line, on a matter related to their business activity, falls under a different, more flexible legal framework based on legitimate interest.

This distinction is not a convenient interpretation: it is written into the text itself. Article L.223-1 of the French Consumer Code prohibits calling "a consumer who has not given prior consent" (Légifrance, version of 11 August 2026). The prior consent requirement is attached to the status of consumer. A relationship between two businesses — a software vendor contacting the IT director of an SME, for example — falls outside this scope. The law of 11 August 2026 does not eliminate B2B prospecting; it simply moves the red line to cover private individuals.

What remains permitted: calling a professional on legitimate interest

You may continue to contact a professional without their prior consent, subject to three cumulative conditions: the purpose of the approach must be related to their profession, the contact details must have been collected fairly, and the individual must be able to object to further approaches simply and free of charge. This is the legitimate interest framework.

The CNIL (France's data protection authority) states this unambiguously for professional prospecting: it "may be based on the legitimate interest of the organisation", provided the purpose is "related to the profession of the person being approached" and that they can object "simply and free of charge" (CNIL, 2026). In practice, presenting your management software to an accounting firm, or your maintenance service to a workshop owner, is perfectly legitimate. What you cannot do is call that same workshop owner on their personal mobile to sell them a fitted kitchen — at that point, you are addressing a consumer, and the opt-in requirement applies.

This logic mirrors that of professional email outreach. If you want to dig into the written-outreach framework, we covered it in detail in our cold email definition and GDPR rules and in our guide to compliant outbound marketing.

What happens to Bloctel after the law of 11 August 2026

Bloctel — the French opt-out registry where private individuals could register to stop being cold-called — disappears on 11 August 2026. Since consumer cold calling switches to opt-in, a do-not-call list no longer serves any purpose: by default, calling is not allowed. The logic of the opt-out registry gives way to that of advance green-lighting.

The French Ministry of the Economy states this plainly: consumers will no longer need to register with Bloctel, which will cease its activities on that date (economie.gouv.fr, 2026). For a B2B sales team, this paradoxically changes very little: Bloctel already only applied to private-individual phone numbers. You were not required to filter your professional contact lists against Bloctel before the reform, and you will not be after it either. What remains your responsibility, however, is maintaining your own list of people who have asked not to be called again.

B2B cold calling in 2026: the right habits to stay compliant

Staying compliant with B2B cold calling rules in 2026 comes down to four habits: calling genuinely professional numbers, on topics related to the contact's line of work, while keeping a record of those who have opted out, and using contact details collected through fair means. Everything else — script, timing, tone — is a matter of good sales practice, not legal risk.

The first habit is also the most overlooked: calling the right line. A professional landline publicly listed on a company website, a number that represents a legal entity rather than an individual — that is the safe ground. The CNIL also clarifies that generic business addresses of the form contact@company.com are not subject to the same requirements as personal contact details, since they represent the organisation rather than a person (CNIL, 2026). The same logic applies by phone: a company number published on an official website is an assumed professional contact.

Hence the importance of starting from clean data. If your phone numbers come from a list of dubious origin, you cannot guarantee fair collection — and the entire compliance case collapses. Building your own list from public sources puts you on the right side. We detail the method in our guide to building a clean, compliant phone contact list, and cover the broader topic of data collection in our definition of scraping in 2026.

One last, more technical habit: a number that rings out wastes your time and damages your image. Screening out dead or unallocated numbers before you dial prevents you from calling ghosts — that is what our guide on verifying that a number is valid and allocated is about.

The penalties: what you are actually risking

Breaching cold calling rules exposes you to an administrative fine not exceeding €75,000 for a natural person and €375,000 for a legal entity. The sanction is steep, but it targets violations of obligations towards consumers — not B2B prospecting carried out within the legitimate interest framework.

These amounts are set out in Article L.242-16 of the French Consumer Code: "Any breach of the provisions of Articles L. 223-1 to L. 223-5 is liable to an administrative fine not exceeding €75,000 for a natural person and €375,000 for a legal entity" (Légifrance, L.242-16). The sanction decision is also published at the expense of the penalised party — meaning the cost is not just financial, it is reputational too. All the more reason to prospect on solid foundations rather than in legal grey areas.

In summary: calling professionals remains possible, done properly

The law of 11 August 2026 does not spell the end of telephone prospecting between businesses. It protects private individuals by shifting their cold calling to opt-in and retiring Bloctel, which has become redundant. For B2B, the framework is unchanged: legitimate interest, subject matter related to the contact's profession, a simple right of objection to uphold, and contact details collected fairly.

Everything really starts with the quality of your contact list. Professional public numbers, up to date and matched to the right person, make the difference between calm, compliant prospecting and poorly managed risk. That is precisely what outsend simplifies in alpha: collecting professional contact details from public sources and building a usable list. For a broader look at the legal side of outbound prospecting, see also our guides on GDPR-compliant legal notices and on our professional email finder built for GDPR compliance.

This article is part of a broader series: see the complete prospecting glossary.

FAQ — B2B cold calling and the law of 11 August 2026

Is B2B cold calling banned from 11 August 2026?

No. The law of 11 August 2026 shifts cold calling of consumers — private individuals — to an opt-in basis. Calling a professional on their work line, on a subject related to their business activity, remains permitted under the legitimate interest framework, without prior consent. The consent requirement explicitly targets consumers, not business-to-business relationships.

Do you need prior consent from a professional before calling them?

No, not for legitimate professional prospecting. The CNIL recognises that prospecting directed at professionals can be based on the legitimate interest of the organisation, provided the subject matter is related to their profession and they can object simply and free of charge. The mandatory prior consent requirement applies to consumer cold calling — individuals acting for private rather than professional purposes.

What happens to Bloctel after the reform?

Bloctel disappears on 11 August 2026. Since consumer cold calling switches to opt-in, a do-not-call registry no longer makes sense: calling is prohibited by default. The French Ministry of the Economy confirms that consumers will no longer need to register and that the service will cease operations. For B2B, the change is minor, since Bloctel only ever applied to private-individual phone numbers.

What conditions must be met to cold call a professional by phone in 2026?

Three cumulative conditions: the purpose of the call must be related to the person's profession, the contact details must have been collected fairly, and the person must be able to object simply and free of charge to further approaches. You must also keep an up-to-date list of those who have asked not to be called again and honour those requests.

What is the risk of a fine for non-compliance?

Under Article L.242-16 of the French Consumer Code, breaching the cold calling opt-out rules exposes you to an administrative fine of up to €75,000 for a natural person and €375,000 for a legal entity, with the sanction published at the expense of the penalised party. These sanctions target violations towards consumers, not compliant B2B prospecting.

How do you tell whether a number is "professional" under the rules?

A switchboard number, a business landline publicly listed on an official website, or a number representing a legal entity rather than an individual all qualify as assumed professional contact details. The CNIL clarifies that generic business addresses do not fall under the individual-data regime. In practice, start from publicly available, fairly collected professional contact details and avoid lists of dubious origin.