The 2035 tax return is an unavoidable tax obligation for self-employed lawyers. This complex administrative document requires a thorough understanding of the BNC tax system and its specific features. You need to master the rules of declaration to avoid costly errors and optimize your tax situation. This guide will take you through every step of this essential process.

What is the 2035 declaration for lawyers?

The 2035 declaration is the annual tax return for liberal professionals subject to the controlled declaration regime. It applies specifically to lawyers under the BNC (Bénéfices Non Commerciaux) regime. This form is used to declare all your professional income and expenses to the tax authorities.

Unlike a simple tax return, the 2035 requires detailed accounting of your business. You’ll need to record all your firm’s financial transactions, from fees received to deductible expenses. This declaration serves as the basis for calculating your income tax, as well as your social security contributions to URSSAF and CARPIMKO.

The main form (declaration 2035) is accompanied by 8 numbered appendices (A to H), the main ones being: appendix A listing fixed assets and depreciation, appendix B detailing deductible expenses, appendix C devoted to vehicle expenses, and appendix D listing the various items to be added back for tax purposes. Together, they form a complete tax file that reflects the economic health of your firm and enables the tax authorities to analyze your business activity in detail.

Who completes the 2035 declaration?

You need to file a 2035 tax return if your professional income exceeds the micro-BNC regime thresholds. For the 2024 tax year, this threshold is set at 77,700 euros of annual income (amount updated each year by the tax authorities). Above this amount, controlled declaration becomes compulsory. For example, a lawyer earning 85,000 euros in fees in 2024 must file a 2035 tax return.

Even below this threshold, you can voluntarily opt for the controlled declaration system. This option offers significant tax advantages, notably the possibility of deducting your actual expenses. The micro-BNC regime applies a flat-rate deduction of 34%, which may be less advantageous if your professional expenses are high. Let’s take a concrete example: with revenues of €70,000 and actual expenses of €40,000, the controlled declaration regime gives a taxable profit of €30,000, compared with €46,200 under the micro-BNC regime (€70,000 – 34% allowance). In this case, the tax savings fully justify opting for the controlled declaration.

Lawyers in a société civile professionnelle (SCP) are still subject to the BNC regime, and file the 2035 tax return at company level, while sociétés d’exercice libéral (SEL) are generally subject to corporate income tax, and file a different tax return (declaration 2065). The legal structure of your practice has a direct impact on your tax obligations and the applicable tax regime.

Elements of the 2035 declaration

Form 2035 consists of a main document and several numbered appendices. Each appendix deals with a particular aspect of your business accounting. You need to fill in all of them accurately to ensure that your return is compliant.

Preparing this form requires rigorous recording of all your accounting operations throughout the year. The methodical organization of your data makes it much easier to fill in the various mandatory sections and appendices.

Business income and expenses

The first section details your professional revenues for the fiscal year. You need to distinguish between retroceded fees, expense reimbursements and other income. Each category has its own line on the form.

Business expenses play a central role in the tax return. You can deduct personnel costs, social security contributions, rent, insurance and travel expenses. Careful documentation of each expense is essential in the event of a tax audit.

Fixed assets and depreciation

Appendix A lists your business fixed assets: furniture, computer equipment, business vehicle, software and fixtures and fittings. You must calculate depreciation in accordance with current tax rules. This depreciation is deducted from your taxable income, allowing you to spread the cost of acquisition over several years.

Goods with a unit value of less than €600 incl. VAT (or €500 excl. VAT) can be written off immediately as an expense, without going through fixed assets. Beyond that, you must depreciate them over their normal useful life: a computer is generally depreciated over three years, a vehicle over four to five years, office furniture over ten years, software over one year, and fixtures and fittings over ten to fifteen years. For certain eligible assets, you can opt for declining-balance depreciation, which accelerates the tax deduction in the first few years. Please note: for passenger vehicles, a deduction ceiling applies based on CO2 emissions, limiting the amount that can be depreciated.

VAT and other taxes

If you are subject to VAT, you must coordinate your 2035 declaration with your VAT obligations. The amounts declared must correspond to revenues excluding VAT. Consistency between your various tax returns guarantees the credibility of your case.

In addition to VAT, other tax contributions must be taken into account on your 2035 tax return. The contribution to professional training (CFP) and the tax for chamber fees are among the deductible expenses to be mentioned. These items, although secondary, contribute to the calculation of your overall taxable income, and deserve special attention when preparing your tax return.

Filing deadlines and procedures

The deadline for filing the 2035 tax return is early May, generally between May 3 and 5, depending on the calendar. For example, for the 2023 tax return, the deadline was May 3, 2024. This deadline applies to accounting periods that coincide with the calendar year. Different deadlines apply to different fiscal years.

Teleprocedure is now the mandatory filing method for all self-employed professionals. You must submit your tax return via the impots.gouv.fr portal, or through an equipped chartered accountant. Paper filing has not been accepted for several years. Remote filing generally offers a few days’ extra time compared with the initial deadline.

Failure to meet deadlines automatically triggers penalties: a surcharge of 10% of the tax due for simple late filing, plus interest at a rate of 0.20% per month. This surcharge can rise to 40% in the case of late filing after formal notice, or even 80% in the case of proven fraudulent maneuvering.

Common mistakes to avoid

The most common errors concern the boundary between personal and business expenses. Only expenses that are strictly necessary to your business are deductible: a business meal with a client is, a family meal is not. What’s more, the absence of convincing supporting documents will weaken your tax return in the event of a tax audit. You must keep all your invoices, bank statements and accounting documents for at least six years. The secure digitization of these documents, while respecting the protection of personal data, makes them easier to keep and consult.

Here are the main mistakes to avoid:

• Confusion between personal and professional expenses
• No or insufficient supporting documents
• Incorrect categorization of expenses
• Failure to declare certain revenues

Two other frequent errors deserve your attention: incorrectly categorizing expenses can lead to tax reassessments, as each expense must be allocated to the correct accounting item according to the tax nomenclature (a continuing education course is not declared in the same way as a purchase of supplies). Neglecting to declare certain revenues, however small, can also result in severe penalties. As the tax authorities cross-check your declarations with the information transmitted by your customers and partners, total transparency remains the best tax strategy.

Optimize your 2035 tax return with digital tools

The use of accounting software or the services of a chartered accountant greatly facilitates the preparation of your 2035 tax return. Software automates the inputting and categorization of transactions, while a chartered accountant provides his or her expertise to optimize your tax situation and give you peace of mind in the event of an audit. Digitizing your accounting management also enables you to monitor your business in real time, giving you a forward-looking vision to anticipate your tax obligations and optimize your cash flow.

These specialized solutions, whether dedicated software or accounting firms with expertise in the legal profession, integrate the specific features of your business: fee management, calculation of provisions, processing of retrocessions. They guarantee tax compliance and time savings, allowing you to concentrate on your core business. The cost of a chartered accountant is generally between €1,500 and €3,000 a year, depending on the volume of your business. This investment should be weighed against the time you save and the security of your tax returns.

Schedules to the 2035 tax return

The 2035 tax return is accompanied by various appendices, which provide details of the amounts reported on the main document. There are eight schedules, covering various aspects of business activity. Schedule A is essential for tracking fixed assets and depreciation, providing an overview of assets used over several years. Appendix B provides details of other assets and expenses, useful for refining actual costs. Appendix C covers vehicle expenses, while Appendix D includes miscellaneous items to be added back into the final calculation. Schedules E and H, respectively, are indispensable for determining added value and the CVAE. Appendix F sets out the composition of the firm’s restricted assets, and Appendix G is dedicated to subsidiaries and holdings, if applicable. Schedules A and B are compulsory for everyone, while the others depend on specific situations.

Support: accountant or autonomy?

Choosing between managing your accounting yourself with dedicated software or delegating this task to a chartered accountant is a crucial decision for any lawyer.
Opting for a chartered accountant offers many advantages: you benefit from optimum legal security, expert tax optimization, considerable time savings, and assured support in the event of a tax audit. However, this service does come at a cost, generally between €1,500 and €3,000 a year, depending on the volume of business.

On the other hand, the option ofself-sufficiency with software is worth considering for those looking to minimize costs. With a budget of €300 to €800 a year, you’re in direct control of your finances, provided you have basic accounting knowledge.
Tip: for a young lawyer or a firm with few transactions, independent management may be sufficient. However, for a structured firm or one with complex operations, the involvement of a chartered accountant is highly recommended.

Finally, the hybrid formula offers an interesting compromise: you manage your day-to-day bookkeeping while requesting an annual review by a chartered accountant. This combines the best of both worlds: cost control and professional security.