Form 2035: The Guide to BNC Under the Real Regime
If you practise a liberal profession (developer, consultant, therapist, trainer) under the real regime — called "déclaration contrôlée" —, form 2035 is your annual tax appointment. It replaces the micro-BNC regime and lets you deduct your actual expenses. Here is how it works, without needless accounting jargon.
What form 2035 is for
Form 2035 is the profit declaration for holders of non-commercial profits (BNC) under the controlled-declaration regime. It determines your taxable profit by comparing your collected income and your business expenses paid during the year.
It concerns two profiles:
- professionals whose revenue exceeds the micro cap (€83,600 in 2026);
- those who, below the cap, voluntarily opted for the real regime because their expenses exceed the 34% micro-BNC allowance.
The result calculated on form 2035 is then carried over to your income tax return (form 2042-C-PRO), where it joins your household's other income.
The "income − expenses" logic
BNC works on a cash accounting basis: you record income actually collected and expenses actually paid during the calendar year, regardless of the invoicing date.
| Heading | Content |
|---|---|
| Income | Fees collected, various gains |
| Expenses | Purchases, rent, travel, contributions, fees, amortisation |
| Result | Income − expenses = profit (or loss) |
For the detailed list of what you can deduct, see our guide to deductible business expenses.
OGA: is joining still useful?
For a long time, not joining an approved management body (OGA/AGA) entailed a 25% increase in taxable profit. This increase has been progressively removed and no longer exists. Joining an approved management association is therefore no longer a tax necessity.
Membership does, however, retain practical interest: help with the declaration, consistency review, tax reduction for accounting costs in some cases. It is now a comfort choice, no longer a disguised obligation.
How and when to declare
Form 2035 is transmitted electronically (EDI-TDFC), generally via your accountant or approved software. The deadline is traditionally in May, with a slight extra delay for electronic filing. The personal income tax return (2042-C-PRO) follows the usual spring calendar.
The steps:
1. Keep accounts of income and expenses throughout the year (obligation under the real regime).
2. Prepare form 2035 and its annexes (fixed assets, amortisation).
3. Transmit the declaration to your tax office.
4. Carry the result over to the 2042-C-PRO: see our guide to the professional income declaration.
Do you need an accountant for form 2035?
It is not legally mandatory, but strongly recommended. Form 2035 requires rigorous accounting, managing amortisation and a good knowledge of deductibility rules. A mistake can be costly in a tax audit. Many professionals under the real regime entrust this declaration to a firm or use specialised accounting software.
Key takeaway: form 2035 is no more complicated than rigorous cash accounting, but it demands consistency in tracking receipts.
Before choosing the real regime, check it is indeed more advantageous than the micro for your situation with our analysis real regime or micro-enterprise. If your expenses are low, the micro and its simplicity often remain the winner.