Special BNC régime: how does it work in 2026?

The special BNC regime (micro-BNC) applies automatically if your 2025 or 2024 receipts do not exceed 83,600 euros. A flat 34% allowance, with a 305 euro minimum, stands in for actual expenses. In 2026 the VAT exemption thresholds stay at 37,500 and 41,250 euros, and every business must be able to receive an electronic invoice from 1 September.

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.

Worth knowing: article 102 ter of the French tax code covers every taxpayer earning non-commercial income (BNC), not only the liberal professions: authors, commercial agents, sportspeople and miscellaneous non-commercial activities all fall within its scope. Second point of caution, the threshold is never assessed on the current year, but on receipts, excluding VAT, for the previous calendar year or the one before that.

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 threshold is set at 83,600 euros of gross professional receipts, excluding VAT. The word to use here is receipts, not turnover: a BNC is taxed on cash actually collected. The ceiling is assessed on the previous calendar year (2025) or on the year before that (2024), never on the current year, and it is pro-rated for a first partial year. A single year above the threshold therefore does not end the regime: you lose the micro-BNC on 1 January following two consecutive years of excess, and switch to actual-expense reporting. The threshold is revalued every three years in line with the first income tax bracket, so 83,600 euros stands until the next three-yearly update.

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.

Here are the 2026 reference points, and what genuinely moves this year for a self-employed professional under the micro-BNC. Nothing touches the 34% allowance, but two points call for a concrete step on your side.

On the ACRE, the break is sharp: until 31 December 2025, no formality at all was required. The claim now conditions the relief, and eligibility should be checked with URSSAF before building any exemption into a cash-flow plan.

On electronic invoicing, only reception is required of you. The obligation to issue electronic invoices applies from 1 September 2026 to large and mid-sized companies, and only from 1 September 2027 to SMEs, very small businesses and micro-enterprises. It is the one change of the year that means choosing a tool before the deadline: we set out the timetable in our article on the 1 September 2026 reception obligation.

One word on the micro-social rates above: they already include CSG-CRDS, so never add 9.7% on top.

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.

Who cannot use the micro-BNC, even below the threshold#

This is the least often covered point, and it concerns a great many liberal professionals. The following are required to use actual-expense reporting (déclaration contrôlée), whatever their level of receipts:

• members of partnerships and of civil professional companies (SCP) (article 103 of the French tax code) and partners in an SCM whose shares serve the professional activity;
• public and ministerial officers for the profits of their office (article 100);
• authors, scientists, artists and sportspeople who have opted for taxation on average income;
• persons habitually carrying out transactions on financial futures instruments (article 96 A);
• general insurance agents who have opted for the salaries and wages regime.

Article 102 ter, 6 adds three exclusions: several activities whose combined total exceeds the limit, business assets held in a fiduciary estate, and undisclosed activity within the meaning of article L. 169 of the tax procedure code.

So before settling on the micro-BNC, start with how you practise: the structure you work through can rule it out on its own, whatever your level of receipts.

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.

Actual-expense reporting (déclaration contrôlée, form 2035) often becomes more attractive 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.

Micro-BNC and actual-expense reporting, line by line#

The switch is arithmetic. As long as your actual expenses stay below 34% of your receipts, the micro-BNC has you paying less tax than an actual-expense regime. Above that, you are taxed on a profit you never made. The tipping point is therefore not a turnover figure, but an expense ratio.

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.

Typical case (representative example), for an independent consultant under the micro-BNC who is not affiliated to the Cipav:

Two lessons come out of this table. The 34% allowance is purely fiscal: it does not reduce the base for social contributions, which stay calculated on collected receipts. And on 50,000 euros collected, the first cost item is social, not fiscal. The rate would be 23.2% for a regulated liberal profession under the Cipav, that is 11,600 euros. These rates already include CSG-CRDS, so never add 9.7% on top. The taxable profit of 33,000 euros is then subject to the income tax scale, after applying the family quotient.

The flat-rate final income tax payment (versement libératoire)#

If you have opted for the versement libératoire, the optional flat-rate final payment of income tax, the rate applicable to BNC receipts is 2.2%. It is paid monthly or quarterly together with your URSSAF social contributions.

Please note: three conditions apply cumulatively. You must be under the micro-BIC or the micro-BNC, be under the micro-social scheme, and have a reference tax income (RFR) for the penultimate year no higher than 29,315 euros per family quotient share for an option applying in 2026, that is the 2024 RFR (58,630 euros for 2 shares, 87,945 euros for 3 shares). That figure moves every year: for an option applying in 2027 it becomes 29,579 euros per share. The option is claimed from URSSAF by 30 September at the latest for effect on 1 January, or by the last day of the third month following registration.

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. Actual-expense reporting then becomes mathematically more advantageous.

The special BNC regime and the VAT exemption for small businesses (franchise en base) are two distinct schemes that are often combined. The VAT exemption relieves you from charging and reporting VAT as long as your receipts stay below the threshold.

In 2026, the base threshold of the VAT exemption for small businesses is 37,500 euros for services, and the higher threshold is 41,250 euros (85,000 euros and 93,500 euros for goods and accommodation). These are the figures in force: the reform that was to bring the exemption down to a single 25,000 euro threshold does not apply.

Concretely, what does this change?#

As long as you stay under 37,500 euros of receipts:

• 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#

Two exit rules must be told apart, and they changed on 1 January 2025. If your receipts exceed 37,500 euros without crossing 41,250 euros, the exemption stays in place for the whole year and VAT applies only from 1 January of the following year. If you cross 41,250 euros, the exemption ceases on the date the threshold is crossed, and the transaction that crosses it is itself subject to VAT. You must then:

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

You may leave the special BNC regime voluntarily and opt for actual-expense reporting. This option can be exercised through your Business Tax Service (SIE).

The option procedure#

The option for actual-expense reporting must be sent to your SIE:

• within the filing deadline for the n° 2035-SD income statement (article 102 ter, 5 of the French tax code). The 1 February deadline still quoted in many places is an old rule, removed from article 102 ter: if you are considering the option, have your SIE confirm the deadline that applies to your situation;
• as a dated and signed written option sent to your SIE, by ordinary post or through the secure messaging of your impôts.gouv.fr professional account: recorded delivery is not required.

Once exercised, the option is valid for one year and tacitly renewed each calendar year for one year (article 102 ter, 5 of the French tax code). You may revoke it and go back to the micro regime provided you meet its thresholds: the two-year irrevocability still widely quoted is a repealed rule. While it is in force, the option does commit you to filing a complete 2035 return.

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);
• file each year the n° 2035-SD income statement and its annexes, which together form the BNC return (2035-A-SD, 2035-B-SD, and 2035-AS-SD for partners);
• 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.

And under the micro-BNC, what bookkeeping is required?#

The trade-off of the micro-BNC is not the absence of bookkeeping. Article 102 ter, 4 of the French tax code requires you to keep, and to produce on request from the tax office, a document giving the daily detail of professional receipts.

Whatever the profession, that document carries three particulars:

• the identity declared by the client;
• the amount of the fees;
• the date and the form of payment (transfer, card, cheque, cash).

That last point is the trap. A bank statement alone does not meet the obligation, since it carries neither the client's identity nor the form of payment. A spreadsheet kept as you go, or an export from an invoicing tool that reproduces those three particulars, is perfectly sufficient.

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.

A micro-BNC working from home, with no dedicated premises, almost always falls under the minimum base of the CFE. That base is set by the municipal council within a statutory bracket that depends on receipts for the reference period (article 1647 D of the French tax code):

Do not confuse that base with the levy itself: the CFE due equals the base multiplied by the rate voted by your municipality. Taxpayers whose turnover or receipts do not exceed 5,000 euros are also exempt from the minimum levy.

Important points:

• you are fully exempt from CFE in the year you start your activity, and your taxable base is then halved in the second year (the receipts used to set the bracket are those of the first year, restated over twelve months);
• the ordinary CFE is assessed on the rental value of property liable to land tax and used for the activity during the reference period (N-2): it is not a tax on turnover. Receipts for N-2 only determine the bracket of the minimum base;
• the CFE is paid annually, with a possible schedule in monthly payments.

Other obligations to know#

• No consular chamber levy: taxpayers carrying on exclusively a non-commercial activity within the meaning of article 92-1 of the French tax code are exempt from the additional CFE levy for chambers of commerce and industry (article 1600, I, 1°). That is a concrete difference with a trader or craftsman micro-entrepreneur, who does pay the chamber of commerce or chamber of trades levy. The Cipav, sometimes mentioned here, is a pension fund and not a consular chamber;
• VAT returns: mandatory as soon as you leave the VAT exemption for small businesses;
• Compliant invoicing: your invoices must carry the mandatory particulars, whatever your regime.

Here are the most common pitfalls under the special BNC regime:

1. Not keeping a daily record of professional receipts This is a legal obligation, even under the micro-BNC: article 102 ter, 4 of the French tax code requires you to keep it and to produce it on request from the tax office. Contrary to what is often written, however, no penalty of 5% of turnover exists. Article 1729 B of the French tax code sets the fines applying to documents that must be filed with the tax authorities: 150 euros where such a document is not produced within the prescribed deadline, and 15 euros per omission or inaccuracy found in it, with a total that can be neither below 60 euros nor above 10,000 euros. Those fines do not apply to a first offence over the current calendar year and the three preceding years, if you put it right spontaneously or within thirty days of a request from the tax authorities.

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. Confusing the base threshold and the higher VAT threshold Crossing 37,500 euros without exceeding 41,250 euros does not make VAT immediately payable: the exemption stays in place for the whole year, and VAT applies only from 1 January of the following year. It is crossing 41,250 euros that ends the exemption on the very date of the excess. In both cases, delay in compliance generates penalties and late payment interest.

5. Staying under the micro-BNC while actual-expense reporting 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 regime 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 against actual-expense reporting 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.

(Official sources: articles 102 ter, 1647 D and 1729 B of the French tax code on Légifrance, Entreprendre.Service-Public on the micro-enterprise tax regime, micro-entrepreneur social contributions, the ACRE relief and the CFE, impots.gouv.fr on the versement libératoire, the consequences of crossing the thresholds, form 2035-SD and electronic invoicing, BOFiP BOI-TVA-DECLA-40-10-10 on the VAT exemption for small businesses, BOI-BNC-DECLA-10-10 on the scope of actual-expense reporting and BOI-IF-AUT-10 on the consular chamber levy)