🇱🇺 Income Tax Calculator Luxembourg 2026

Luxembourg offers an attractive tax regime with moderate rates, numerous deductions, and advantageous taxation for couples and families. It's also Europe's #1 employer of cross-border workers (~200,000 commuters).

2026 Tax Brackets

Taxable Income	Rate	Cumulative Tax
0 - 13,230 EUR	0%	0 EUR
13,230 - 15,270 EUR	8%	163 EUR
15,270 - 21,390 EUR	12%	897 EUR
21,390 - 31,590 EUR	22%	3,141 EUR
31,590 - 43,830 EUR	32%	7,058 EUR
43,830 - 100,000 EUR	39%	28,964 EUR
Above 100,000 EUR	42%	-

+ Employment fund contribution: 7-9% of tax amount

Tax Classes

Social Contributions Breakdown

Tax Deductions & Allowances

Cross-Border Workers

Luxembourg vs France Comparison

Category	Luxembourg	France
Maximum marginal rate	42%	45%
Employee contributions	~12.5%	~22%
Minimum wage	2,570 EUR/month	1,766 EUR/month
Capital gains tax	Exempt after 6 months	30% flat
Net on 70,000 EUR income	~48,785 EUR	~42,000 EUR

Luxembourg Tax Advantages

Double Taxation Agreements and Cross-Border Workers

Luxembourg's position at the crossroads of Europe makes double taxation agreements and cross-border worker provisions particularly important. The Grand Duchy has signed DTAs with over 80 countries, including a comprehensive treaty with France that governs the taxation of the approximately 120,000 French cross-border workers (frontaliers) who commute to Luxembourg daily. Under the France-Luxembourg DTA, employment income is generally taxed where the work is performed. However, a telework tolerance threshold of 34 days per year allows French residents to work from home in France without triggering French taxation on that income. Exceeding this threshold means the entire salary becomes taxable in France. For non-frontalier expats relocating to Luxembourg, the impatriate regime provides a tax exemption on certain relocation benefits and cost-of-living allowances for up to five years. Luxembourg also does not impose capital gains tax on securities held for more than six months, and participating dividends from qualifying subsidiaries benefit from a full exemption, making the country attractive for investment holding structures.

Recent Tax Reforms and 2026 Changes

Luxembourg continually refines its tax system to remain competitive while meeting EU and OECD standards. Recent reforms include the introduction of OECD Pillar Two minimum tax rules (15% global minimum for large multinationals), adjustments to the tax credit for single parents (credit d'impot monoparental), and periodic increases in the personal allowances and tax brackets to account for inflation. The government has also expanded the stock option and free share plans regime, making it more attractive for tech companies and startups to offer equity compensation. Luxembourg's qualified intellectual property (IP) regime provides an 80% exemption on net income from eligible IP assets, resulting in an effective tax rate of approximately 5.2% on IP income. For employees, the country offers generous meal voucher schemes (up to EUR 10.80 per day tax-free) and employer-subsidized supplementary pension plans that benefit from favorable tax treatment both at contribution and benefit stages.

Practical Filing Tips for Luxembourg Taxpayers

Luxembourg residents must file their annual tax return by March 31 of the following year using the Modele 100 form, which can be submitted electronically through the MyGuichet.lu platform or via the Administration des Contributions Directes (ACD) portal. One of the most important steps before filing is to verify your tax class assignment: Class 1 for single taxpayers, Class 1a for single parents and taxpayers over 65, and Class 2 for married couples and civil partners. Requesting a change of tax class after a life event such as marriage or divorce must be done promptly to avoid incorrect withholding throughout the year. Employees should carefully review their fiche de retenue d'impot (withholding tax card) to ensure all allowances and deductions are properly reflected. Luxembourg allows taxpayers to deduct interest on personal loans up to EUR 672 per year per household member, life insurance premiums up to EUR 672 (increased for older taxpayers), and supplementary pension contributions (prevoyance-vieillesse) up to EUR 3,200 per year. Home buyers benefit from a particularly generous mortgage interest deduction called the deduction for bailleur de fonds, which allows up to EUR 3,000 per year for the first five years of homeownership, tapering to EUR 1,500 after fifteen years. Filing jointly as a married couple is generally advantageous when there is a significant income disparity between spouses.

Common Mistakes to Avoid in Luxembourg

Cross-border workers and new residents in Luxembourg frequently make errors that result in higher tax bills or penalties. French frontaliers often fail to track their telework days accurately, accidentally exceeding the 34-day threshold and inadvertently creating a French tax obligation on their entire Luxembourg salary. Another common mistake is neglecting to file a tax return at all when it is optional; many employees with a single employer assume the withholding tax is final, but filing a voluntary return often results in a substantial refund, particularly for those in Tax Class 2 or those with deductible expenses not reflected in the withholding. Taxpayers who own property abroad must declare it in their Luxembourg return, as it affects the applicable tax rate under the progression rule even if the income itself is exempt. Newly arrived expats should also ensure they claim the impatriate tax benefits from their very first year of residence, as retroactive claims are generally not accepted. Finally, employees receiving stock options or restricted share units (RSUs) from international employers must understand that these are taxable at the time of exercise or vesting in Luxembourg, and the valuation methodology must follow ACD guidelines to avoid disputes during audits.