Business GrowthARPU (Average Revenue Per User): How to Calculate and Grow This Key SaaS MetricARPU tracks how much each customer pays on average. Growing it — without churning customers — is one of the most powerful levers for sustainable revenue growth.Thomas Weber · 6 min 0
TaxFreelancer Tax in Luxembourg: Everything Self-Employed Workers Need to KnowGoing freelance in Luxembourg? Here's how income tax, VAT, social contributions, and quarterly payments work for self-employed professionals.Marie Laurent · 10 min 0
Business GrowthChurn Rate: What It Is, Why It Kills Startups, and How to Bring It DownHigh churn is a slow death for subscription businesses. Understanding how to calculate it, monitor it, and reduce it is one of the most important skills a SaaS founder can have.Thomas Weber · 8 min 0
Business GrowthConversion Rate: How to Calculate It, Benchmark It, and Improve ItConversion rate is the percentage of visitors, leads, or prospects who take the action you want. Small improvements compound dramatically — even 1% matters.Thomas Weber · 7 min 0
Equity & OwnershipROI, MOIC, and IRR: How Investors Measure Returns on Startup InvestmentsVCs don't just look at whether they made money — they measure returns precisely. Understanding ROI, MOIC, and IRR helps founders speak the language investors use every day.Thomas Weber · 8 min 0
TaxLuxembourg Bonus & 13th Month Tax: How Much Will You Actually Keep?The 13th month bonus is standard in Luxembourg but heavily taxed. Here's exactly how it's calculated, when it's paid, and what you'll take home.Thomas Weber · 7 min 0
TaxLuxembourg VAT 2026: Rates, Registration Threshold & How to Calculate ItLuxembourg has the lowest VAT rate in the EU at 17%, but there's more to it than the headline number. A complete guide for businesses, freelancers, and consumers.Thomas Weber · 8 min 0
TaxCompany Car Benefit-in-Kind in Luxembourg: What It Really Costs YouA company car in Luxembourg adds a taxable benefit-in-kind to your income. Here's how it's calculated, how much extra tax you pay, and whether it's still worth it.Marie Laurent · 8 min 0
SalaryLuxembourg Take-Home Pay Comparison: Which Scenario Puts More in Your Pocket?Comparing two job offers, salary vs freelance, or employed vs part-time? This guide explains how to make a true apples-to-apples net pay comparison in Luxembourg.Thomas Weber · 8 min 0
PropertyLuxembourg Mortgage 2026: Rates, LTV Rules & What You Can Actually AffordBuying property in Luxembourg is expensive but manageable with the right financial planning. This guide covers current rates, BCL rules, and realistic affordability calculations.Marie Laurent · 12 min 0
InvestmentCompound Interest & Investment Returns: A Practical Guide for European InvestorsUnderstanding compound growth is the single most important concept in personal finance. Here's how it works, what realistic returns look like in 2026, and how to use it to your advantage.Thomas Weber · 10 min 0
PensionLuxembourg Pension (CNAP) Explained: What Expats Will Actually ReceiveThe Luxembourg state pension is among the most generous in Europe, but the rules are complex — especially for expats who've worked in multiple EU countries.Marie Laurent · 11 min 0
