Tools
One question. Your own figures.
Simulators and calculators. Explore hypotheticals without any account data.
Tax (Luxembourg)
(6)Luxembourg income tax calculator
Estimate your Luxembourg income tax, effective and marginal rate.
Luxembourg tax deductions
Find deductible expenses and value the tax they save.
Luxembourg tax before 31 December
See how much to contribute before 31 Dec to lower your tax.
Luxembourg commuting allowance calculator
Turn your home↔work distance into a frais-de-déplacement deduction.
Luxembourg tax class: 1, 1a or 2
Find the class + collective-taxation combo that minimises household tax.
Luxembourg property capital gains tax
Estimate the taxable gain on a Luxembourg property sale.
Projections
(3)Compound interest calculator
See how regular investing compounds over time.
Rent vs Buy
Compare renting against buying and find your break-even year.
FIRE calculator: target capital and independence age
Your independence date in one calculation, or a multi-phase path on your real balance.
These calculators run in your browser. Nothing is saved and you do not need an account. Most of them follow Luxembourg rules: the income tax scale, tax classes 1, 1a and 2, the commuting allowance, and the tax on property capital gains. The others are general purpose. You can compare renting against buying, work out what a loan really costs over its term, plan which debt to clear first, or see what compound interest does to a savings pot over twenty years. They are most useful if you live in Luxembourg, or commute in from Belgium, France or Germany and have two tax systems to think about at once. Every result is an estimate based on the figures you enter. It is a calculation, not investment advice.