Traceable sources
Regulatory parameters are linked to official sources and an identifiable tax year.
About
GlobalFiscalLab builds calculators and guides that explain their assumptions, keep rules separate from their sources and state their limitations clearly.
Roadmap updated on 24 August 2026
Regulatory parameters are linked to official sources and an identifiable tax year.
The engine, annual parameters and editorial content stay separate so each change can be checked.
Results are documented estimates, not tax advice tailored to an individual situation.
Luxembourg is the first covered market, with a French foundation designed to expand to more languages and jurisdictions.
Future updates
Priorities may change when official rules evolve or user feedback identifies a more important need.
Continuous improvement of explanations, reference cases and checks around the existing calculator.
Reverse calculation of the gross required to reach a regular-month net or annual-average net target.
Annual and monthly employee budget with employer contributions, benefits and documented settings.
A dedicated experience for non-periodic remuneration with explicit assumptions and limitations.
2026 rates, take-home-pay impact and estimated employer budget for the main powertrains.
Calculators, country page and eight guides available in English with the same official sources.
Calculators, country page and eight guides available in German with the same official sources.
Potential expansion to other jurisdictions when the required sources and tests can be maintained sustainably.
A feature is only marked as available after its sources, assumptions and tests have been reviewed.
GlobalFiscalLab does not replace an authority or qualified professional. Contact forms are for questions, corrections and partnerships; do not include payslips, declarations, identification numbers or other sensitive data.