Declare Your Prop Firm Income to Tax Authorities:
Step-by-Step Guide 2026

Note: This guide covers French tax law. International readers should consult local tax authorities.

1. Introduction

You're starting to receive payouts from your prop firm and the question arises: how do I declare this income to tax authorities in France? It's an unavoidable step that many traders postpone, often out of ignorance or fear of administrative complexity.

The good news is that declaring your prop firm income isn't as complicated as it seems — provided you understand the basics and follow the right steps. This guide shows you exactly how to do it, box by box, form by form.

Whether you've received your first 500€ payout or generate regular income of several thousand euros per month, this guide covers everything you need to know to be compliant with the French tax authorities.

2. Which tax status for prop firm income?

Before discussing declaration, you need to understand how the French tax authority classifies your prop firm income. And this is where many traders go wrong.

In a prop firm, you don't trade your own capital. You use the firm's capital and receive a share of profits in exchange for your trading performance. Concretely, this is a service you provide to the prop firm — an intellectual service based on your expertise.

Result: prop firm gains are classified as BNC (Bénéfices Non Commerciaux — Non-Commercial Profits), not capital gains. This is a fundamental distinction that changes everything in your declaration.

This BNC classification means you need a professional status to legally receive and declare this income. Let's look at the available options.

For a complete article on prop firm taxation in France, check our prop firm taxation France guide.

3. The different possible statuses

Auto-entrepreneur / Micro-entreprise

It's the simplest status to start. Registration is free, management is minimal, and declaration is simplified. Here are the main characteristics:

• Turnover ceiling: 77,700€/year (2026 threshold for BNC service provisions)
• Flat-rate allowance: 34% on turnover (under micro-BNC), no tax on this portion
• URSSAF social contributions: about 22% of gross turnover
• Accounting: simplified (receipts register only)
• VAT: base franchise below 36,800€/year threshold

For a complete guide on auto-entrepreneur status and prop firm, check our dedicated article: Prop Firm and Auto-Entrepreneur.

Sole proprietorship under real regime

If you exceed the micro-entreprise ceiling or your professional expenses are high, sole proprietorship under the real regime may be more advantageous:

• No turnover ceiling (unlike micro)
• Deduction of actual expenses: trading platform, data feed (Rithmic, CQG), computer equipment, training, software subscriptions
• Full accounting required (balance sheet, income statement)
• More complex but potentially more advantageous if your professional expenses exceed 34% of your turnover

The real regime becomes interesting when your professional expenses (challenges, equipment, data feed, software) represent a significant share of your income. Do the math with your chartered accountant.

Company (SASU, EURL)

For traders generating significant income (over 50,000€/year), creating a company can offer significant tax advantages:

• Tax optimization via the choice between salary and dividends
• Reduced corporate tax rate at 15% on the first 42,500€ of profit
• Personal asset protection (limited liability)
• Deduction of all professional expenses
• Requires a chartered accountant (annual cost from 1,000€ to 3,000€)

4. Step-by-step guide: Auto-entrepreneur declaration

Here's the concrete, step-by-step guide to declare your prop firm income as auto-entrepreneur. This is the status most prop firm traders use in France.

Step 1: Create your auto-entreprise

If you haven't done so, the first thing to do is create your auto-entreprise. Here's how:

1. Go to autoentrepreneur.urssaf.fr
2. Create your account and fill out the activity declaration form
3. For the APE code (French activity code), common choices are:
   • 6612Z — Securities and commodity brokerage
   • 7022Z — Business and management consulting
4. Registration is free and takes about 15 minutes
5. You receive your SIRET number (French business ID) within a few days to weeks

Once your SIRET is obtained, you are officially registered and can start declaring your income.

Step 2: Declare turnover to URSSAF

Each month or quarter (you choose the frequency at registration), you must declare your turnover to URSSAF on autoentrepreneur.urssaf.fr.

• The amount to declare = total payouts received from the prop firm during the period
• Payouts in USD must be converted to euros at the rate of the payment day
• The social contributions (~22%) are calculated and deducted automatically
• You must declare even if your turnover is 0€ during the period

Step 3: Annual income tax declaration

Each year, between April and June, you complete your income tax declaration online on impots.gouv.fr. Here's exactly what to do:

1. Log in to impots.gouv.fr and access your declaration
2. In additional sections, check "Industrial and commercial income / Non-commercial income"
3. You access form 2042-C PRO
4. Fill box 5KP (micro-BNC) with the total amount of your annual turnover
5. The 34% allowance is applied automatically by the administration
6. The remaining amount (66% of your turnover) is added to your other taxable income

If you opted for the versement libératoire (flat-rate payment), fill box 5TE instead of 5KP. The tax (2.2% of turnover) has already been deducted with your URSSAF contributions throughout the year.

Step 4: Pay the CFE

The CFE (Cotisation Foncière des Entreprises — Business Property Tax) is a local tax that all auto-entrepreneurs must pay:

• Exemption first year of activity (year of creation)
• From the second year, the amount varies by municipality (between 100€ and 500€ on average)
• The initial declaration (form 1447-C) must be made before December 31st of the year of creation
• Payment is made each year in December on impots.gouv.fr

The CFE is often forgotten by beginner auto-entrepreneurs. Remember to provision it in your annual expenses.

5. Currency conversion

Most prop firms pay in US dollars (USD). Your payouts arrive in USD and you must convert them to euros for your declaration. Here are the rules to follow:

• Use the ECB (European Central Bank) exchange rate of the transfer day
• You can find historical rates on the ECB website
• Keep a written record of the rate used for each conversion
• The amount in euros is what you declare to URSSAF and tax authorities

If you receive multiple payouts in the month, convert each individually at the rate of the day, then add the euro amounts for your monthly or quarterly URSSAF declaration.

6. Special case: Foreign prop firm

Almost all prop firms are based abroad (USA, Dubai, Czech Republic, etc.). This raises some specific tax questions:

• No withholding tax generally: payouts arrive gross, without prior tax deduction by the prop firm
• Foreign account declaration: if you have a direct account with the prop firm or payment provider (like Riseworks), you may need to fill form 3916 to declare accounts held abroad
• Intra-community VAT: if the prop firm is EU-based, intra-community VAT rules may apply (ask your accountant)
• Regular international transfers are monitored by banks and the tax administration — all the more reason to declare everything correctly

For a detailed guide on tax aspects related to foreign prop firms, check our article: Foreign Prop Firm: Taxation.

7. Mistakes to avoid

Here are the most common mistakes made by prop firm traders during their tax declaration. Avoid them to stay compliant:

• Not declaring at all — This is the most serious mistake. Regular international transfers are tracked. A tax adjustment with penalties can be very expensive.
• Confusing with capital gains — Prop firm income is BNC, not capital gains. The form and boxes to fill are not the same.
• Forgetting the CFE — This local tax is often unknown to beginner auto-entrepreneurs. It's due each year from the second year of activity.
• Not keeping supporting documents — Payout statements, bank statements, USD/EUR conversion proofs: keep everything for a minimum of 6 years.
• Declaring net amount instead of gross — It's the gross payout amount that must be declared, before conversion or transfer fees.
• Forgetting 0€ URSSAF declarations — Even if you earned nothing in a month or quarter, you still must make your declaration (at 0€).

8. Optimize your taxation

Once your declaration is in order, you can think about legally optimizing your tax burden. Here are the main avenues:

The versement libératoire (income tax flat-rate payment)

If you are eligible (N-2 reference tax income below about 27,478€ per family quotient share), you can opt for the versement libératoire. Concretely:

• You pay 2.2% of your turnover in income tax, withheld at the same time as your URSSAF contributions
• It's a definitive tax: your prop firm income is no longer subject to the progressive scale
• Particularly advantageous if you have other income (salaried employment) placing you in higher brackets
• Total charges + tax: about 24-25% of turnover (22% URSSAF + 2.2% IR)

Choose the right status by income

Provision your charges

Practical advice: set aside 30 to 40% of each payout as soon as you receive it. This covers your URSSAF social contributions (~22%), income tax (variable depending on your bracket) and CFE. You'll never be caught off guard when it's time to pay.

Deduct expenses under real regime

If your professional expenses exceed 34% of your turnover (the micro-BNC flat-rate allowance), it may be interesting to switch to the real regime to deduct your actual expenses:

• Cost of prop firm challenges and resets
• Data feed subscriptions (Rithmic, CQG)
• Software licenses (NinjaTrader, TradingView, Sierra Chart)
• Computer equipment (computer, screens)
• Trading training
• Percentage of rent if dedicated home office

9. Tax calendar: when to do what

Taxation is managed over time. Here are the key dates to never miss to stay compliant without penalties:

10. Frequently asked questions

Do I have to declare even if I earned little?

Yes, without exception. All professional income must be declared, even a single 100€ payout. Under auto-entrepreneur, you declare your turnover each month or quarter to URSSAF (even 0€) and include the annual total in your income tax declaration. Not declaring, even a small amount, constitutes a tax offense.

Is prop firm income considered capital gains?

No. It's the most common mistake. Prop firm income is BNC (Non-Commercial Profits), classified as service provision. You don't trade your own capital — you provide a trading service to the prop firm. The 30% PFU applicable to personal trading therefore does not apply. You declare your gains on form 2042-C PRO, not on the capital gains form.

What is the tax rate on prop firm gains?

The total rate depends on your personal situation. Under auto-entrepreneur, you pay:

• URSSAF social contributions: about 22% of turnover
• Income tax: either the progressive scale (0% to 45%) on 66% of your turnover (after 34% allowance), or 2.2% of turnover with versement libératoire
• CFE: fixed annual amount (100-500€ by municipality)

With versement libératoire, the total is around 24-25% of turnover. Without it, it depends on your marginal tax bracket and other income.

Do I need a chartered accountant?

Under auto-entrepreneur with modest income, you can manage your declaration alone. The procedure is simple and this guide explains the steps. However, a chartered accountant is strongly recommended starting at 20,000€/year in gains, or if you plan to switch to the real regime or to a company. An initial meeting costs between 50€ and 150€ — an investment that can save you thousands of euros in tax mistakes.