Reducing tax in Luxembourg, tax planning, or legal strategies to minimise tax for a self-employed person or small company in Luxembourg.
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Built by Michael Cutajar and the OpenAccountants team. Written from the official sources it cites.
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AUDIT FLASH POINT
An owner-manager must take a reasonable salary for work performed; converting all profit into low-taxed distributions without substance is challengeable.
Reasonable salary
Owner-managers must be paid a market salary; all-dividend extraction without substance is challengeable.
Substance
A SARL must carry on genuine business and be managed in Luxembourg.
ATAD GAAR
ATAD GAAR applies to arrangements whose main purpose is a tax advantage.
No-salary-only-distributions advice
NEVER advise an active SARL owner to take no salary and only distributions.
Incorporation as pure tax play
NEVER present incorporation purely as a tax play without the substance/reasonable-salary warning.
Rate contradiction
NEVER contradict the rates in `luxembourg-income-tax.md` / `luxembourg-social-contributions.md` (note: 2026 pension contribution is 8.5% each side).
Research gap presentation
NEVER present [RESEARCH GAP] figures as confirmed, nor optimisation as definitive advice — route to a licensed Luxembourg tax adviser.
Rendered from the canonical facts model. General reference only — confirm with a qualified professional before acting.
Tier 2 — research-verified. Sources: Administration des contributions directes (ACD), PwC Luxembourg, Guichet.lu. Figures must agree with luxembourg-income-tax.md / luxembourg-social-contributions.md. NOT yet signed off by a Luxembourg tax adviser. Aggressive positions are never advised; every suggestion must be reviewed.
Quick Reference table
| Field | Value |
|---|---|
| Country | Grand Duchy of Luxembourg |
| Currency | EUR |
| Headline levers | Self-employed vs SARL/SARL-S; third-pillar pension deduction; interest & insurance deductions |
| Personal income tax | Progressive, 23 brackets, 0%–42% |
| Corporate tax (2025) | CIT 14% (base < €175,000) / 16% (base > €200,000), plus municipal business tax + solidarity surtax |
| SARL allowance | Automatic €17,500 business allowance |
| Self-employed pension (CNAP) | 24% of net income, payable in full by the self-employed person |
| Anti-avoidance | Substance; reasonable remuneration; ATAD GAAR |
Lever: beyond a certain income, a SARL/SARL-S separates company income (CIT ~14–16%) from personal income (PIT up to 42%), letting you retain/reinvest at the lower corporate rate and control extraction. Below that, the self-employed route with full use of personal deductions is simpler.
Self-Employed vs SARL / SARL-S table
| Route | Treatment | Best when |
|---|---|---|
| Self-employed (indépendant) | Net profit taxed on the progressive 0–42% scale; CNAP 24%; full personal deductions | Lower income, low complexity |
| SARL-S / SARL | CIT 14–16% on profit; automatic €17,500 allowance; owner takes salary (deductible) + dividends; profit can be retained at the corporate rate | Higher income, reinvesting, liability/credibility |
Deductions Most People Miss table
| Deduction | Detail |
|---|---|
| Business expenses | Genuine costs of running the activity (self-employed) / company (SARL). |
| Mortgage interest (own home) | Deductible — uncapped for the year the rental value is fixed + the following year; then ceilings €4,000 / €3,000 / €2,000. |
| Personal-loan & insurance interest/premiums | Life/health/accident/liability premiums + personal-loan interest deductible up to €672 (+ same per spouse and per dependent child). |
| SARL €17,500 allowance | Automatic, no formalities. |
Pension & Retirement Reliefs table
| Relief | Detail |
|---|---|
| Third-pillar private pension | Premiums deductible up to €3,200 (€4,500 from tax year 2026). |
| Employer pension scheme (employee) | Deductible up to €1,200/yr. |
| CNAP (self-employed) | 24% of net income — mandatory, but full deductibility/relief mechanics should be confirmed. [RESEARCH GAP — reviewer to confirm CNAP deductibility for the self-employed.] |
Personal Abatements table
| Item | Detail |
|---|---|
| Joint professional abatement | €4,500 where both jointly-taxed spouses/partners have professional income. |
| Tax classes | Class 1 / 1a / 2 affect the rate — confirm the correct class (married/partnered/with children). |
| Extra-professional / commuter / other abatements | Several standard abatements apply — confirm eligibility. [RESEARCH GAP — reviewer to confirm current abatement amounts.] |
luxembourg-income-tax.md / luxembourg-social-contributions.md (note: 2026 pension contribution is 8.5% each side).This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a licensed tax adviser in Luxembourg) before acting upon.
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