Back to guides
Financial Management
10 min
Legal Tax Optimization for Independents
Tax optimization is not fraud. It's the intelligent use of legal provisions to minimize your tax burden. Every euro saved in taxes is a euro you can reinvest in your business or wealth. This guide presents the most effective strategies for independents, from simplest to most advanced.
1
Deduct all your professional expenses
The first optimization is not to forget anything. Many independents underestimate their deductible expenses.
100% deductible expenses:
Equipment and material • Computer, screen, keyboard, mouse • Phone and accessories • Office furniture • Software and SaaS subscriptions
Operating costs • Office rent / coworking • Electricity, internet, phone (professional share) • Office supplies • Postage and shipping
Professional services • Accountant • Lawyer • Professional insurance (liability, disability) • Bank (business account fees)
Training and development • Professional training • Books and professional subscriptions • Conferences and events • Professional coaching
Travel • Transport (train, plane, metro) • Mileage allowances • Professional accommodation • Business meals (away from home)
Partially deductible expenses:
| Expense | Deductible share | |---------|------------------| | Home rent (if dedicated office) | Pro area / Total area | | Home internet | 50% to 80% depending on use | | Phone | Actual professional use | | Vehicle | Pro km / Total km |
Tip: Keep ALL your receipts. In case of audit, no receipt = no deduction.
100% deductible expenses:
Equipment and material • Computer, screen, keyboard, mouse • Phone and accessories • Office furniture • Software and SaaS subscriptions
Operating costs • Office rent / coworking • Electricity, internet, phone (professional share) • Office supplies • Postage and shipping
Professional services • Accountant • Lawyer • Professional insurance (liability, disability) • Bank (business account fees)
Training and development • Professional training • Books and professional subscriptions • Conferences and events • Professional coaching
Travel • Transport (train, plane, metro) • Mileage allowances • Professional accommodation • Business meals (away from home)
Partially deductible expenses:
| Expense | Deductible share | |---------|------------------| | Home rent (if dedicated office) | Pro area / Total area | | Home internet | 50% to 80% depending on use | | Phone | Actual professional use | | Vehicle | Pro km / Total km |
Tip: Keep ALL your receipts. In case of audit, no receipt = no deduction.
2
Choose the right tax regime
The choice of tax regime can represent several thousand euros in savings.
Micro-enterprise:
| Activity | Flat-rate deduction | |----------|---------------------| | Sales | 71% | | Services BIC | 50% | | Services BNC | 34% |
Interesting if your actual expenses < flat-rate deduction.
Actual regime:
Deduction of actual expenses. Interesting if your actual expenses > flat-rate deduction.
Comparative example (consultant, €60K revenue):
| | Micro (34% ded.) | Actual (40% expenses) | |--|------------------|----------------------| | Revenue | €60,000 | €60,000 | | Taxable base | €39,600 | €36,000 | | IT (30%) | €11,880 | €10,800 | | Savings | • | €1,080 |
Corporate Tax vs Income Tax (for EURL/SASU):
Income Tax (IR) • Profit taxed at your marginal rate (0% to 45%) • Interesting if marginal rate < 25% • No double taxation
Corporate Tax (IS) • 15% up to €42,500, 25% above • Interesting if marginal rate > 25% • Allows salary/dividend arbitrage
IR → IS switch threshold: Generally advantageous to switch to IS when profit exceeds €40-50K.
Micro-enterprise:
| Activity | Flat-rate deduction | |----------|---------------------| | Sales | 71% | | Services BIC | 50% | | Services BNC | 34% |
Interesting if your actual expenses < flat-rate deduction.
Actual regime:
Deduction of actual expenses. Interesting if your actual expenses > flat-rate deduction.
Comparative example (consultant, €60K revenue):
| | Micro (34% ded.) | Actual (40% expenses) | |--|------------------|----------------------| | Revenue | €60,000 | €60,000 | | Taxable base | €39,600 | €36,000 | | IT (30%) | €11,880 | €10,800 | | Savings | • | €1,080 |
Corporate Tax vs Income Tax (for EURL/SASU):
Income Tax (IR) • Profit taxed at your marginal rate (0% to 45%) • Interesting if marginal rate < 25% • No double taxation
Corporate Tax (IS) • 15% up to €42,500, 25% above • Interesting if marginal rate > 25% • Allows salary/dividend arbitrage
IR → IS switch threshold: Generally advantageous to switch to IS when profit exceeds €40-50K.
3
Optimize compensation (company under IS)
In a company under IS, you can arbitrate between salary and dividends.
Salary: • Deductible from company result • Subject to social charges • Generates social rights (retirement, etc.)
Dividends: • Not deductible (taken from profit after IS) • 30% flat tax (or progressive scale + 17.2% social levies) • No social charges (except EURL/SARL > 10% capital)
Optimal strategy:
1. Minimum salary for: • Validating 4 retirement quarters (~€6,990/year in 2025) • Having basic social coverage • Banking credibility (pay slips)
2. The rest in dividends: • 30% flat tax vs 45%+ social charges • Substantial savings
Example (€100K result before compensation):
| Strategy | 100% Salary | Optimal mix | |----------|-------------|-------------| | Gross salary | €100,000 | €15,000 | | Social charges | ~€45,000 | ~€6,750 | | Net salary | ~€55,000 | ~€8,250 | | Company profit | €0 | €85,000 | | IS (15%/25%) | €0 | ~€17,875 | | Gross dividends | €0 | ~€67,125 | | Flat tax (30%) | €0 | ~€20,137 | | Total net | ~€55,000 | ~€55,238 |
*Note: Simplified calculation, consult an accountant.*
Warning EURL/SARL: Dividends > 10% of capital = social charges on excess (~45%).
Salary: • Deductible from company result • Subject to social charges • Generates social rights (retirement, etc.)
Dividends: • Not deductible (taken from profit after IS) • 30% flat tax (or progressive scale + 17.2% social levies) • No social charges (except EURL/SARL > 10% capital)
Optimal strategy:
1. Minimum salary for: • Validating 4 retirement quarters (~€6,990/year in 2025) • Having basic social coverage • Banking credibility (pay slips)
2. The rest in dividends: • 30% flat tax vs 45%+ social charges • Substantial savings
Example (€100K result before compensation):
| Strategy | 100% Salary | Optimal mix | |----------|-------------|-------------| | Gross salary | €100,000 | €15,000 | | Social charges | ~€45,000 | ~€6,750 | | Net salary | ~€55,000 | ~€8,250 | | Company profit | €0 | €85,000 | | IS (15%/25%) | €0 | ~€17,875 | | Gross dividends | €0 | ~€67,125 | | Flat tax (30%) | €0 | ~€20,137 | | Total net | ~€55,000 | ~€55,238 |
*Note: Simplified calculation, consult an accountant.*
Warning EURL/SARL: Dividends > 10% of capital = social charges on excess (~45%).
4
Tax relief schemes
Several schemes allow you to directly reduce your tax.
PER (Retirement Savings Plan):
• Contributions deductible from taxable income • Ceiling: 10% of income (min €4,399, max €35,194) • Savings = contribution × marginal rate
Example: €10,000 contributed × 30% marginal rate = €3,000 savings
Madelin (for self-employed):
• Deductible supplementary retirement • Deductible disability insurance • Deductible health insurance
Investment in SME capital:
• 25% income tax reduction on amount invested • Ceiling: €50,000 (single) / €100,000 (couple) • Family holding company possible
FCPI / FIP:
• 18% to 25% income tax reduction • Ceiling: €12,000 (single) / €24,000 (couple) • 5-10 year lock-up
Charitable donations:
• 66% income tax reduction (general interest) or 75% (aid to people) • Ceiling: 20% of taxable income
Home employment:
• 50% tax credit • Ceiling: €12,000 to €20,000 depending on situation • Childcare, cleaning, gardening, tutoring
Recommended strategy:
1. Maximize PER (immediate savings + retirement) 2. Use schemes according to your situation 3. Avoid complex schemes (Pinel, etc.) unless expert
PER (Retirement Savings Plan):
• Contributions deductible from taxable income • Ceiling: 10% of income (min €4,399, max €35,194) • Savings = contribution × marginal rate
Example: €10,000 contributed × 30% marginal rate = €3,000 savings
Madelin (for self-employed):
• Deductible supplementary retirement • Deductible disability insurance • Deductible health insurance
Investment in SME capital:
• 25% income tax reduction on amount invested • Ceiling: €50,000 (single) / €100,000 (couple) • Family holding company possible
FCPI / FIP:
• 18% to 25% income tax reduction • Ceiling: €12,000 (single) / €24,000 (couple) • 5-10 year lock-up
Charitable donations:
• 66% income tax reduction (general interest) or 75% (aid to people) • Ceiling: 20% of taxable income
Home employment:
• 50% tax credit • Ceiling: €12,000 to €20,000 depending on situation • Childcare, cleaning, gardening, tutoring
Recommended strategy:
1. Maximize PER (immediate savings + retirement) 2. Use schemes according to your situation 3. Avoid complex schemes (Pinel, etc.) unless expert
5
Holding company: for advanced profiles
The holding company is a powerful wealth optimization tool. But beware of complexity.
What is a holding company?
A company that holds shares in other companies.
Typical structure: • Holding (you are shareholder) • → Owns 100% of your operating company
Advantages:
Parent-subsidiary regime: • Dividends passed up quasi-exempt (95% exemption) • No flat tax as long as money stays in the holding
Reinvestment: • Available cash to invest • Real estate, investments, other activities • Without going through your personal taxation
Transmission: • Donation of holding shares • Deductions and Dutreil pact possible • Estate optimization
Optimized cash out: • Sale of securities via the holding • Tax deferral (contribution-sale 150-0 B ter)
Disadvantages:
❌ Complex creation and management ❌ Fixed costs (accounting ×2) ❌ Beware of abuse of rights ❌ Requires expert support
When to create a holding?
✅ Profit > €100K/year ✅ Desire to reinvest (real estate, investments) ✅ Medium-term sale project ✅ Estate transmission to prepare
❌ Not to simply "pay less taxes" ❌ Not if you need everything as compensation
Tip: Never create a holding without support from an accountant and tax lawyer.
What is a holding company?
A company that holds shares in other companies.
Typical structure: • Holding (you are shareholder) • → Owns 100% of your operating company
Advantages:
Parent-subsidiary regime: • Dividends passed up quasi-exempt (95% exemption) • No flat tax as long as money stays in the holding
Reinvestment: • Available cash to invest • Real estate, investments, other activities • Without going through your personal taxation
Transmission: • Donation of holding shares • Deductions and Dutreil pact possible • Estate optimization
Optimized cash out: • Sale of securities via the holding • Tax deferral (contribution-sale 150-0 B ter)
Disadvantages:
❌ Complex creation and management ❌ Fixed costs (accounting ×2) ❌ Beware of abuse of rights ❌ Requires expert support
When to create a holding?
✅ Profit > €100K/year ✅ Desire to reinvest (real estate, investments) ✅ Medium-term sale project ✅ Estate transmission to prepare
❌ Not to simply "pay less taxes" ❌ Not if you need everything as compensation
Tip: Never create a holding without support from an accountant and tax lawyer.
6
What NOT to do
Optimization has its limits. Here are the red lines not to cross.
Illegal practices (fraud):
❌ False invoices ❌ Undeclared work ❌ Undeclared income ❌ Undeclared foreign bank accounts ❌ Artificial schemes without economic substance
Risks incurred: • Tax reassessment (tax + 40-80% penalties) • Late interest (0.2%/month) • Criminal prosecution (up to 5 years in prison) • Management ban
Risky practices (gray area):
⚠️ Abnormally low compensation (SASU president at €0) ⚠️ Personal expenses passed as professional ⚠️ Complex schemes without economic justification ⚠️ Holding without real substance
Abuse of rights:
The administration can reclassify a scheme if: • Exclusively tax purpose • No real economic substance • Contrary to legislator's intent
Good reflexes:
✅ Document your choices (why this scheme) ✅ Ensure economic substance ✅ Have it validated by a professional ✅ Declare everything, even if optimized ✅ Keep your receipts for at least 6 years
The "newspaper headline" test:
If your tax scheme made the newspaper headline, would you be comfortable explaining it?
If not, it's probably a line not to cross.
Illegal practices (fraud):
❌ False invoices ❌ Undeclared work ❌ Undeclared income ❌ Undeclared foreign bank accounts ❌ Artificial schemes without economic substance
Risks incurred: • Tax reassessment (tax + 40-80% penalties) • Late interest (0.2%/month) • Criminal prosecution (up to 5 years in prison) • Management ban
Risky practices (gray area):
⚠️ Abnormally low compensation (SASU president at €0) ⚠️ Personal expenses passed as professional ⚠️ Complex schemes without economic justification ⚠️ Holding without real substance
Abuse of rights:
The administration can reclassify a scheme if: • Exclusively tax purpose • No real economic substance • Contrary to legislator's intent
Good reflexes:
✅ Document your choices (why this scheme) ✅ Ensure economic substance ✅ Have it validated by a professional ✅ Declare everything, even if optimized ✅ Keep your receipts for at least 6 years
The "newspaper headline" test:
If your tax scheme made the newspaper headline, would you be comfortable explaining it?
If not, it's probably a line not to cross.
Conclusion
Tax optimization is a right, not an obligation. The important thing is to understand your options. Start with the basics: deduct all your expenses and choose the right regime. That's where the easiest gains are. Advanced strategies (holding, salary/dividend arbitrage) require professional support. The cost of the expert is largely offset. Never optimize at the expense of legality. Peace of mind is priceless.