Special BNC regime: how does it work in 2026?

Updated March 2026 - The special BNC regime, also called micro-BNC or special declarative regime, remains the natural entry point for many self-employed people in France. In practice, the real question is not just whether you can enter, but whether it remains relevant once your charges, VAT and reporting obligations are taken into account. This guide details each mechanism so that you can make an informed choice.

Quick answer: the special BNC regime is a simplified tax regime reserved for liberal professions whose turnover does not exceed 77,700 euros in 2026. The administration applies a flat rate deduction of 34% on your revenue collected to determine your taxable profit. You declare your income on form 2042-C-PRO without producing a 2035 package.

The special BNC regime allows you to declare your income with light administrative formality. The administration then applies a flat rate reduction of 34% to determine the tax base, with a minimum of 305 euros per year.

This regime is defined in article 102 ter of the General Tax Code. It applies automatically as long as your annual revenue remains below the legal ceiling. No option is necessary to enter: you are there automatically if you meet the conditions.

In 2026, the micro-BNC 2026 threshold is set at 77,700 euros of annual turnover. This ceiling is assessed over the current calendar year or over the previous year. If your turnover exceeds this threshold one year, you retain the benefit of the scheme for that year. On the other hand, an excess for two consecutive years results in your compulsory switch to the controlled declaration.

To complete this reading, also see our guide on the BNC sheet, our file on liberal professions accounting and our article on micro-enterprise accounting 2026.

The special BNC regime targets taxable activities in the category of non-commercial profits. Concretely, this covers:

• non-commercial liberal professions (consultants, training, advice);
• independent intellectual services;
• certain regulated liberal professions (architects, accountants, lawyers under conditions);
• self-employed people covered by the micro-BNC;
• authors and artist-authors in certain cases. Commercial professions fall under the micro-BIC regime, not the special BNC regime. The distinction is important because the thresholds and reductions are not the same.

Micro-BNC or controlled declaration: how to choose?

The micro-BNC is often suitable if:

• your professional expenses are limited (less than 34% of your turnover);
• you are starting your activity and wish to limit formalities;
• you do not have expensive professional premises or equipment to depreciate;
• you will prefer light administrative management.

The BNC controlled declaration (form 2035) often becomes more interesting if:

• your actual expenses exceed 34% of your revenue;
• you depreciate computer equipment, furniture or professional vehicles;
• you bear significant professional rents;
• you want a detailed accounting view of your profitability;
• you plan to create a company in the medium term.

Hayot Expertise Advice: good arbitration is not only made at the threshold. You must compare the 34% reduction with your actual expenses, then measure the cumulative impact on income tax, social security contributions and your cash flow. A simple comparative table is often enough to decide.

The mechanism is simple in appearance. You declare your revenue collected during the calendar year. The administration then applies the reduction of 34%. The balance constitutes your taxable profit, subject to the progressive income tax scale.

Let's take a concrete example to illustrate the calculation:

In this example, your taxable profit amounts to 33,000 euros. It is this amount which will be subject to the income tax scale after application of the family coefficient.

Update on the balloon payment

If you have opted for the tax payment, the rate applicable to BNC receipts is 2.2%. This payment is made monthly or quarterly at the same time as your URSSAF social security contributions.

Please note: the balloon payment is only possible if your reference tax income from the penultimate year does not exceed a certain threshold. Check your eligibility before making this choice.

What if your actual charges exceed 34%?

This is the classic trap of the special BNC regime. If your professional expenses (rent, insurance, training, travel, supplies) represent more than 34% of your turnover, you pay tax on a basis higher than your actual profit. The controlled declaration then becomes mathematically more advantageous.

The special BNC regime and the VAT-based franchise are two distinct but often combined systems. The VAT-based franchise exempts you from charging and declaring VAT as long as your turnover remains below the threshold.

In 2026, the threshold for the VAT-based exemption for the provision of services is 36,800 euros. The tolerance threshold, beyond which VAT becomes payable, is 39,100 euros.

Concretely, what does this change?

As long as you stay under 36,800 euros in revenue:

• you do not charge VAT to your customers;
• you do not declare VAT to the administration;
• you cannot recover VAT on your professional purchases.

This regime is particularly advantageous if your clientele is made up of individuals, who do not recover VAT. On the other hand, if you work mainly with taxable companies, invoicing VAT is not a handicap: your customers recover it in full.

Be careful when exceeding the VAT threshold

If your revenue exceeds 39,100 euros, you become liable for VAT from the first day of the month of excess. You must then:

• charge VAT on your services;
• declare VAT monthly or quarterly;
• maintain separate VAT accounts.

It is possible to voluntarily leave the special BNC regime to opt for the controlled declaration. This option can be exercised through your Business Tax Service (SIE).

The option procedure

The option for the controlled declaration must be sent to your SIE:

• before February 1 of the year for which you wish to be taxed under this regime;
• by registered letter with acknowledgment of receipt or via your professional space on impots.gouv.fr.

Once the option is exercised, it is irrevocable for at least two years. This irreversibility is important: it commits you to producing a complete 2035 declaration during this minimum period.

What obligations with the controlled declaration?

Under the controlled declaration regime, you must:

• maintain complete accounts (receipt book, expenditure book, fixed assets table);
• produce the 2035 declaration and its annexes each year;
• establish a declaration of results (form 2035-SD available on impots.gouv.fr);
• respect the rules for deductibility of charges (supporting documents, link with the activity, year of attachment).

This accounting is more cumbersome, but it allows you to deduct your entire professional expenses and amortize your investments.

Even under the special BNC regime, certain tax obligations remain. Ignoring them can be costly during an inspection.

The Business Land Contribution (CFE)

The CFE is due by any person carrying out a self-employed professional activity, including micro-BNC. The amount varies depending on your tax municipality and your turnover.

In 2026, CFE rates vary considerably from one municipality to another. The annual amounts generally range from 200 euros to more than 2,000 euros depending on the location of your activity.

Important points:

• you are exempt from CFE in the year of creation of your activity;
• the amount is calculated on the basis of your turnover for the penultimate year;
• the CFE is paid annually, with a possible schedule in monthly payments.

Other obligations to know

• Tax for room expenses (CIPAV): certain liberal professions are subject to it;
• VAT declaration: mandatory if you exceed the basic franchise thresholds;
• FEC (Accounting Entries File): payable in controlled declaration, not in micro-BNC;
• Compliant invoicing: your invoices must comply with the mandatory information, regardless of your plan.

Here are the most common pitfalls that we observe in the office:

1. Not keeping a recipe book This is a legal obligation, even in micro-BNC. In the event of a tax audit, the administration may impose a penalty of 5% of turnover if this register is absent or incomplete.

2. Confusing receipts collected and invoices issued The micro-BNC operates in cash accounting. You must declare the amounts actually collected during the year, not the invoices you issued.

3. Forgetting to check your thresholds every year An unanticipated excess may result in a tax adjustment. Check your turnover regularly, not just at the end of the year.

4. Neglect VAT in case of excess As soon as you cross the threshold of 36,800 euros (basic deductible), VAT becomes payable. Delay in compliance generates penalties and late payment interest.

5. Staying in micro-BNC while the controlled declaration would be more advantageous If your expenses exceed 34% of your revenue, you are paying more tax than necessary. Do the math before each reporting campaign.