IR vs IS Taxation: Choosing the Right Legal Structure (EI, EURL, SASU) for Your Business in France

Choosing the right legal structure for your business in France is one of the most critical decisions you’ll make as a freelancer or small business owner. Your choice between Entreprise Individuelle (EI), EURL, or SASU will impact your taxation (IR vs IS), social contributions, liability, and even your ability to grow. With VAT deadlines looming in 2026 and new regulations like mandatory electronic invoicing, understanding these differences is more important than ever. This guide breaks down the key considerations to help you decide confidently.

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Why Your Legal Structure Matters for Taxation

Your legal structure determines whether your business profits are taxed under IR (Income Tax) or IS (Corporate Tax), and this choice has long-term financial implications. Here’s how each structure works:

1. Entreprise Individuelle (EI) – Simplicity with Flexibility

The EI is the simplest legal structure for freelancers and solo entrepreneurs. By default, your business profits are taxed under IR, meaning they’re added to your personal income and taxed at progressive rates (up to 45%). However, since the 2022 reform, EI owners under the real tax regime (not micro-entrepreneurs) can opt for IS taxation, allowing them to benefit from corporate tax rates (15% on the first €42,500 of profits, then 25%).

Key points:

• No legal separation between you and your business (though you can protect your personal assets with the patrimoine affecté option).
• Social contributions: You pay TNS (Travailleur Non Salarié) contributions, which are lower than employee rates but offer less coverage.
• VAT: If your turnover exceeds the micro-entrepreneur thresholds (€94,300 for sales, €36,500 for services in 2026), you must register for VAT and file returns under the real normal or simplified regime.

Best for: Freelancers who want minimal paperwork and don’t need liability protection.

2. EURL – Liability Protection with Tax Flexibility

An EURL (Entreprise Unipersonnelle à Responsabilité Limitée) is a single-member LLC that combines liability protection with tax flexibility. By default, it’s taxed under IR, meaning profits are taxed as your personal income. However, you can opt for IS taxation, which is ideal if you want to reinvest profits or pay yourself a salary.

Key points:

• Liability: Your personal assets are protected (except in cases of mismanagement).
• Taxation: Under IR, profits are taxed at progressive rates. Under IS, the company pays corporate tax, and you only pay IR on your salary or dividends.
• Social contributions: As a gérant majoritaire (majority manager), you pay TNS contributions under IR. Under IS, you’re considered an assimilated employee, with higher contributions but better social benefits.
• VAT: Same rules as EI—you must register if your turnover exceeds the micro-entrepreneur thresholds.

Best for: Freelancers who want liability protection and the option to choose between IR or IS taxation.

3. SASU – Corporate Taxation with Employee-Like Benefits

A SASU (Société par Actions Simplifiée Unipersonnelle) is a single-member corporation that’s always taxed under IS. This means the company pays corporate tax on profits, and you pay IR only on your salary or dividends. The SASU is ideal if you want to benefit from the general social security regime (like an employee) and plan to reinvest profits or attract investors.

Key points:

• Liability: Your personal assets are fully protected.
• Taxation: Corporate tax (15% on the first €42,500, then 25%) applies to profits. You pay IR on your salary and dividends (with a 30% flat tax on dividends under certain conditions).
• Social contributions: As an assimilated employee, you pay higher contributions but gain access to unemployment benefits and better healthcare coverage.
• VAT: Same rules as EI and EURL—registration is required if your turnover exceeds the thresholds.

Best for: Freelancers who want to grow their business, reinvest profits, or benefit from employee-like social security.

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IR vs IS Taxation: Which Is Right for You?

The choice between IR and IS taxation depends on your income, growth plans, and personal financial goals. Here’s a quick comparison:

Factor	IR Taxation	IS Taxation
Tax Rates	Progressive (up to 45%)	Corporate tax (15%/25%) + IR on salary/dividends
Social Contributions	Lower (TNS)	Higher (assimilated employee)
Flexibility	Simple, no corporate formalities	More complex, but better for reinvesting profits
Liability	None (unless patrimoine affecté)	Full protection (EURL/SASU)
Best For	Low-income freelancers, simplicity	High-income earners, growth plans

When to choose IR:

• You’re just starting out and expect low profits.
• You want to avoid corporate formalities.
• You don’t need liability protection.

When to choose IS:

• You plan to reinvest profits in your business.
• You want to benefit from the general social security regime (SASU).
• You expect high profits and want to optimize your tax burden.

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VAT Deadlines in 2026: What You Need to Know

VAT compliance is a critical part of running your business, and missing deadlines can result in penalties. Here’s what you need to know for 2026:

1. Real Normal Regime (Monthly/Quarterly Filing)

• Monthly filing: If your turnover exceeds €250,000 (for sales) or €83,333 (for services), you must file monthly VAT returns between the 15th and 24th of the following month. For example, your June 2026 VAT return is due between July 15 and July 24, 2026.
• Quarterly filing: If your turnover is below these thresholds, you can opt for quarterly filing, with deadlines falling in the same period (e.g., Q2 2026 VAT is due between July 15 and July 24, 2026).

2. Simplified Regime (Annual Filing)

• If you’re under the simplified regime, you file an annual VAT return (CA12) by May 5, 2026, for the 2025 fiscal year. You may also need to pay semiannual installments (55% in July and 40% in December).

3. Franchise in Base (No VAT)

• If your turnover is below €94,300 (sales) or €36,500 (services), you’re exempt from VAT and don’t need to file returns. However, you cannot charge VAT to your clients.

4. Electronic Invoicing Mandate (2026)

Starting September 1, 2026, all VAT-registered businesses must issue and receive electronic invoices via a certified platform. This includes freelancers and small businesses. Non-compliance can result in fines, so it’s crucial to prepare now. Tools like Factur-X 2026 compliance can help you generate compliant invoices automatically and submit them to the Public Invoicing Portal.

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How Your Legal Structure Affects Cash Flow and Compliance

Your legal structure doesn’t just impact taxes—it also affects your cash flow, accounting complexity, and compliance obligations. Here’s how:

1. Cash Flow Management

• EI (IR): Profits are taxed immediately, even if you reinvest them. This can strain cash flow if you’re not prepared.
• EURL/SASU (IS): You only pay taxes on distributed profits (salary/dividends), giving you more control over cash flow.

To avoid late payments and improve cash flow, consider using automatic payment reminders. These tools send personalized email reminders to clients before and after invoices are due, reducing awkward follow-ups and improving your collection rate.

2. Accounting Complexity

• EI (IR): Simpler accounting, but you must track personal and business expenses separately if you opt for patrimoine affecté.
• EURL/SASU (IS): More complex accounting, including payroll for your salary, corporate tax filings, and dividend distributions. You’ll need to generate FEC (Fichier des Écritures Comptables) for tax audits, which can be streamlined with accounting exports.

3. Compliance Obligations

• EI: Fewer formalities, but you must still comply with VAT deadlines and electronic invoicing requirements.
• EURL/SASU: More formalities, including annual general meetings, corporate tax filings, and payroll declarations. Tools like multi-tenant management can help if you manage multiple entities or subcontractors.

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Which Legal Structure Is Best for You?

Here’s a quick decision guide to help you choose:

Your Situation	Recommended Structure
Just starting out, low income	EI (IR)
Need liability protection	EURL (IR or IS)
Plan to reinvest profits	EURL (IS) or SASU
Want employee-like benefits	SASU
High turnover, complex operations	SASU

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Common Mistakes to Avoid

1. Choosing IR for high profits: If your business is profitable, IR can push you into higher tax brackets. IS may be more tax-efficient.
2. Ignoring VAT deadlines: Missing VAT deadlines can result in penalties of 5% to 10% of the unpaid amount. Use tools to automate reminders.
3. Not separating personal and business finances: Even in an EI, mixing finances can complicate accounting and tax filings.
4. Overlooking electronic invoicing: Starting September 2026, non-compliant invoices won’t be accepted. Prepare now with compliant tools.
5. Forgetting social contributions: TNS contributions (EI/EURL IR) are lower but offer less coverage. If you need better benefits, consider SASU.

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How jefacturebien.fr Can Help

Managing taxes, VAT deadlines, and compliance can be overwhelming, but the right tools can simplify the process. jefacturebien.fr offers features designed to help freelancers and small businesses stay on top of their obligations:

• Factur-X 2026 compliance: Automatically generate compliant electronic invoices and submit them to the Public Invoicing Portal, ensuring you meet the 2026 mandate without stress.
• Automatic payment reminders: Improve cash flow by scheduling personalized reminders for clients, reducing late payments and awkward follow-ups.
• Accounting exports: Export your data in FEC, CSV, Excel, or JSON formats for seamless integration with your accountant or accounting software.

Explore all the features to streamline your invoicing, compliance, and cash flow management at jefacturebien.fr/features.

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Final Thoughts: Take Action Now

Choosing the right legal structure and understanding IR vs IS taxation is crucial for your business’s financial health. Whether you opt for an EI, EURL, or SASU, make sure your decision aligns with your income, growth plans, and compliance obligations. Don’t forget to mark your VAT deadlines on the calendar and prepare for the 2026 electronic invoicing mandate to avoid penalties.

If you’re still unsure, consult an accountant or tax advisor to tailor the best solution for your situation. And remember—tools like jefacturebien.fr can help you manage invoicing, compliance, and cash flow effortlessly, so you can focus on growing your business.