Special BNC régime: how does it work in 2026?

Updated March 2026 - The special BNC régime, also called micro-BNC or special déclarative régime, 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 régime is a simplified tax régime 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 régime 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 régime 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 déclaration.

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 régime 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 régime, not the special BNC régime. The distinction is important because the thresholds and reductions are not the same.

Micro-BNC or actual-expense reporting (déclaration contrôlée): 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 déclaration (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 référence 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 régime. 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 déclaration then becomes mathematically more advantageous.

The special BNC régime 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 régime 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 régime to opt for the controlled déclaration. This option can be exercised through your Business Tax Service (SIE).

The option procedure#

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

• before February 1 of the year for which you wish to be taxed under this régime;
• by registered letter with acknowledgment of receipt or via your professional space on impôts.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 déclaration during this minimum period.

What obligations come with actual-expense reporting?#

Under the actual-expense reporting régime (déclaration contrôlée), you must:

• maintain complete accounts (receipt book, expenditure book, fixed assets table);
• produce the 2035 déclaration and its annexes each year;
• establish a déclaration of results (form 2035-SD available on impôts.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 régime, 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 déclaration: mandatory if you exceed the basic franchise thresholds;
• FEC (Accounting Entries File): payable in controlled déclaration, 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 déductible), VAT becomes payable. Delay in compliance generates penalties and late payment interest.

5. Staying in micro-BNC while the controlled déclaration 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.

The special BNC diet is neither good nor bad in itself. It is optimal in some situations and counterproductive in others. The only way to decide is to concretely compare your two options with your own figures. If you are creating your own self-employed activity or are wondering about the relevance of your current régime, we can establish a precise simulation:

• comparison of micro-BNC vs controlled déclaration on your situation;
• estimate of your tax and social security burden;
• analysis of your VAT situation and its foreseeable evolution;
• personalized recommendation with supporting figures.

Structure your activity with our creation support

The special BNC régime remains very effective in 2026 for starting a self-employed activity quickly and reducing administrative formalities. Its flat rate reduction of 34% and its simplicity of déclaration make it a relevant choice for many self-employed people. But it is only optimal if your actual expenses remain lower than the 34% reduction and if your tax organization is followed rigorously.

Don't forget that the choice of tax régime is not final. You can always opt for the controlled déclaration if your situation changes. The main thing is to make this choice with full knowledge of the facts, with a clear vision of the impact on your tax, your social security contributions and your cash flow.

(Official sources: Entreprendre.Service-Public on the tax régime for micro-enterprises and liberal professions, form 2035-SD on impôts.gouv.fr, article 102 ter of the CGI on Légifrance, URSSAF on contributions for liberal professions, BOFiP on BNC reporting obligations)