Are you a lawyer looking for a simplified tax regime? Micro BNC is an attractive option for self-employed professionals with modest revenues. With this system, you benefit from streamlined accounting and reduced reporting obligations. Unlike the classic BNC tax system, micro BNC offers a flat-rate approach that considerably simplifies your administrative management.

What is micro BNC for lawyers?

The micro BNC scheme is a simplified tax regime for self-employed professionals, including lawyers. This is a special type of BNC for lawyers, which means you don’t have to keep detailed accounts.

This system applies automatically when your annual income does not exceed a certain threshold. In this case, you benefit from a flat-rate deduction of 34% on your gross revenues. This allowance represents your professional expenses on a flat-rate basis, without you having to justify your actual expenses. In practical terms, if you earn €50,000 in fees during the year, your taxable profit will be €33,000 (€50,000 – 34%), or 66% of your revenue.

Under the micro BNC scheme, you don’t have to keep commitment accounts or produce complex accounting documents. However, you are required to keep a chronological record of your receipts, noting the date, the identity of the customer, the amount received and the nature of the service. The annual total is then entered on your 2042-C-PRO tax return, box 5HQ.

Conditions of eligibility for the micro BNC scheme

To qualify for the micro BNC scheme as a lawyer, you must comply with an annual revenue ceiling. This threshold is 77,700 euros excluding tax for the calendar year. Whether or not you have exceeded this ceiling is determined on December 31 of each year.

Your revenue is calculated on the basis of fees actually received during the year. Receivables not yet paid are not included in this calculation. This rule of cash accounting considerably simplifies your follow-up.

The rules for switching to the actual regime depend on how much you exceed the threshold. If you exceed 77,700 euros in a given year, but remain below the higher threshold of 85,470 euros, you retain your micro BNC status for that year. Only if you exceed 77,700 euros for two consecutive years will you automatically switch to the real regime in year N+2. On the other hand, if you exceed the higher threshold of 85,470 euros in your first year, the switch to the actual regime applies immediately the following year.

A concrete example: if your revenues reach 80,000 euros in 2024 (between 77,700 and 85,470 euros), you will remain under micro BNC for 2024. If, in 2025, your revenues rise again to 79,000 euros, you will switch to the real regime in 2026. Conversely, if your 2024 revenues exceed 85,470 euros, you’ll have to switch to the actual regime in 2025.

How the micro BNC system works for lawyers

Your taxable profit is calculated automatically. The tax authorities apply a flat-rate deduction of 34% to your declared income. This percentage represents your presumed professional expenses. Let’s take a concrete example: if your annual revenue is €60,000, the tax authorities will apply an allowance of €20,400 (34% of €60,000). Your taxable profit is therefore €39,600.

You declare only the gross amount of your revenue on your supplementary tax return. The taxman then calculates your taxable profit by applying the allowance. This profit is added to your other income on the progressive income tax scale. It is also subject to social security contributions, which represent around 22% of the profit, in addition to income tax.

As far as VAT is concerned, the micro BNC scheme is generally accompanied by a basic VAT exemption. You don’t charge VAT to your customers, and you don’t reclaim VAT on your purchases. This basic VAT exemption applies if your revenues for the year N-1 remain below €37,500. If you exceed this threshold but remain below €39,100, you retain the exemption for the current year. Above this higher threshold, you become liable for VAT.

The advantages of micro BNC for your legal practice

The main advantage of micro BNC is its administrative simplicity. You don’t need to keep complex accounts or produce an annual balance sheet. A simple book of receipts is all you need to justify your declarations. This simplified management saves you between 10 and 15 hours a year, time that you can devote directly to your files and your customers.

You save between €1,000 and €2,500 a year in accountant fees, since you can manage your tax return yourself with a simple spreadsheet or revenue book. Where an accountancy firm generally charges between €1,200 and €3,000 a year for a self-employed business, simplified accounting software costs less than €200 a year, or nothing at all if you use a basic spreadsheet. This autonomy allows you to devote more time to your professional activity, while keeping a firm grip on your finances.

The micro BNC scheme also offers appreciable tax predictability. You know immediately what your tax burden will be, by applying the 34% deduction to your income. This transparency facilitates your financial management and budget projections, without the need for complex calculations or risky estimates.

The absence of VAT also simplifies your invoices and your customer relations. Your fees remain more competitive, since you don’t add 20% VAT to your rates. This basic exemption is a significant selling point, particularly for price-sensitive private customers.

Limits and drawbacks of the micro BNC system

The flat-rate nature of the allowance can become disadvantageous if your actual expenses exceed 34% of your revenue. You cannot deduct your actual professional expenses: office rent, computer equipment, compulsory continuing education, professional liability insurance, professional association dues. It is important to note that CNBF and social security contributions are not considered deductible expenses when calculating the 34% flat-rate allowance.

For a lawyer, running costs generally represent between 30% and 50% of income. Let’s take a concrete example: you earn €70,000 in fees during the year. Under micro BNC, your taxable profit is €46,200 (€70,000 – 34% tax allowance). If your actual expenses are €30,000 (i.e. 43% of your revenue), the actual regime with 2035 declaration would give you a profit of €40,000, i.e. €6,200 less taxable base.

Another illustration: with €60,000 in revenue and €25,000 in actual expenses (41.6%), the micro BNC generates a taxable profit of €39,600, while the real regime results in €35,000. Tax savings can therefore be substantial, depending on your marginal tax bracket.

The revenue ceiling is a constraint on the development of your business. Once you’ve reached this threshold, you’ll need to switch to a more complex accounting system. This transition requires adaptation, and often the services of a chartered accountant.

The impossibility of reclaiming VAT on your investments penalizes major purchases. For the acquisition of costly equipment or the fitting out of premises, the “régime réel” offers a significant tax advantage.

The micro BNC system is ideally suited to lawyers just starting out or practicing part-time. It offers invaluable simplicity when your income remains modest. However, you need to assess regularly whether this system remains optimal in light of the evolution of your business and your actual expenses.

How do I opt for or opt out of micro BNC?

The micro BNC scheme applies automatically if you meet the threshold conditions, without any particular steps being taken. However, if you are planning to voluntarily opt out of this simplified system and opt for the actual system, you must inform the tax authorities before February 1st of the year concerned, generally using the 2035 declaration. This option commits you to the actual system for a minimum of two years, which means you need to think about the expected benefits in advance.

If you exceed the constitutional revenue thresholds for the actual regime, the changeover takes place automatically, without any intervention on your part. Your declaratory obligations under the micro BNC scheme include submitting the 2042-C-PRO declaration, inserting your receipts in box 5HQ, attached to your annual tax return. It’s also essential to keep your revenue book for six years, in case of a tax audit.

Micro BNC and social security contributions for lawyers

When you opt for the micro BNC regime as a lawyer, your social security contributions, in particular those paid to URSSAF and CIPAV, are calculated on your profit after a 34% allowance. This means that your contributions are based on 66% of your gross income.
The overall rate of social security contributions for a lawyer under this regime is generally between 22% and 24% of profit. It’s important to note that, unlike tax, these contributions cannot be deducted from profits under the micro BNC system.
In addition, when you start your own practice as a lawyer, you can benefit from the ACRE reduction, which reduces your social security contributions for the first year, a considerable advantage when launching your practice.
Finally, don’t forget that pension contributions, i.e. those paid to the CNBF, are in addition to your regular social security contributions, which will be calculated differently.