Luxembourg net-to-gross salary calculator

Transparent reverse calculation

Method and limitations

The calculator adds no new tax formula. It repeatedly tests gross salaries in the Luxembourg 2026 gross-to-net engine until it finds the smallest cent that reaches the requested net.

The target can represent either a regular salary month or annual net divided by 12. For 13 or 14 payments, additional payments are assumed to equal the estimated monthly gross.

Official engine sources

• CCSS · confirmed

  Employee contribution rates from 1 January 2026

  Accessed on 16/08/2026 · Employee and employer shares, accident, mutual insurance and limits from 1 January.

• CCSS · confirmed

  Social-security parameters

  Accessed on 16/08/2026 · 2026 rates and social minimum wage indexation on 1 June 2026.

• CCSS · confirmed

  Contribution bases

  Accessed on 16/08/2026 · Minimum, ceiling, part-time work and dependency allowance.

• Administration des contributions directes · confirmed

  Income tax scales

  Accessed on 16/08/2026 · The tariff effective in 2025 remains the latest official adjustment applicable in 2026.

• Administration des contributions directes · confirmed

  Income Tax Law — consolidated text on 1 January 2026

  Accessed on 16/08/2026 · Articles 118 to 121 for the tariff and tax classes.

• Administration des contributions directes · confirmed

  Employee CIS and CO2 tax credits from tax year 2026

  Accessed on 16/08/2026 · 2026 formulas for the employee CIS and CO2 tax credit.

• Administration des contributions directes · confirmed

  Calculating the tax charge on a gratuity

  Accessed on 23/08/2026 · Official example distinguishing ordinary monthly withholding from the non-periodic remuneration scale applicable since 1 January 2025.

• Inspection du travail et des mines · confirmed

  How is overtime compensated?

  Accessed on 16/08/2026 · Compensatory leave, payment at 140% and exclusions for senior executives.

• Administration des contributions directes · confirmed

  Information for non-residents — remote work

  Accessed on 16/08/2026 · 34-day tax tolerance for Germany, Belgium and France.

• CCSS · confirmed

  Framework agreement on cross-border remote work

  Accessed on 16/08/2026 · Separate social thresholds below 25%, from 25% to below 50%, and from 50%.

• Guichet.lu · confirmed

  Company car made available to an employee

  Accessed on 14/09/2026 · Two valuation methods, tax and social bases, VAT-inclusive new value and the 20% cap for a fixed lease contribution.

• Klima-Agence · confirmed

  Benefits in kind for company cars

  Accessed on 14/09/2026 · 2026 flat rates: 0.5% or 0.6% for electric vehicles depending on efficiency, and 2% for plug-in hybrids and other powertrains.