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Accounting, VAT and CCSS guides for Luxembourg
Practical, sourced and verified guides to understand accounting, VAT, CCSS and financial management for a business in Luxembourg.
- Official sources cited
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Search a topic or filter by theme: every guide lists its sources and its verification date.
FeaturedVAT12 min read
VAT in Luxembourg: a complete guide for self-employed professionals and companies
Luxembourg VAT rates, the small-business exemption, filing frequency, deadlines and invoicing rules — explained in practical terms.
Accounting13 min read
Accounting for self-employed professionals in Luxembourg: invoices, expenses, VAT and CCSS
What a self-employed professional in Luxembourg actually needs to organise: records, invoices, expenses, banking, VAT, CCSS and year-end readiness.
CCSS12 min read
CCSS for self-employed professionals in Luxembourg: contributions, income and deadlines
How Luxembourg CCSS contributions work for self-employed professionals: registration, provisional income, 2026 rates, thresholds, adjustments and payment.
Companies6 min read
What is a SARL-S? The €1 company in Luxembourg
Share capital from €1 to €12,000, no notary required, individual partners only: what to know about the simplified SARL before setting up your company.
Companies6 min read
Starting a business in Luxembourg: the 5 steps (SARL)
Blocked capital, articles signed before a notary, RCS filing, business permit, VAT and CCSS: how to set up a SARL in Luxembourg, step by step and in the right order.
VAT6 min read
Luxembourg VAT explained: a worked example, from net price to VAT payable
€1,000 invoiced excluding VAT, €1,170 collected, €85 of input VAT on a computer: how much do you pay over, and when do you file? Luxembourg VAT explained step by step with a concrete example.
Themes
Browse by theme
Each theme brings together the guides dedicated to one specific part of running a business’s finances in Luxembourg.
Official rules, explained in clear language.
For tax, social-security, accounting and regulatory topics, Zuelen verifies information against official Luxembourg sources before publication.
- Official sources first
We start with Guichet.lu, the AED, CCSS, ACD, Legilux and the relevant Luxembourg public authorities.
- Transparent, traceable sourcing
Every guide lists the resources used so readers can verify the information directly at the source.
- From rule to practice
We separate the official rule from the practical explanation for a small business or self-employed professional.
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