How does taxx.lu work?

taxx.lu is an online platform that simplifies tax returns in Luxembourg. It allows you to complete and submit your tax returns (forms 100, 163, 190 and 700) in an intuitive and secure manner.

Steps in the process

1. Create an account: Register for free on taxx.lu.
2. Guided completion: Complete the relevant sections of your return.
3. Free simulation: Get an estimate of the amount you will have to pay or receive.
4. Choose a package: Select a package that suits your needs to access your complete tax return.
5. Download: Receive your tax return, ready to be sent to the tax authorities.

Our packages

taxx.lu offers different packages to meet your specific needs:

• Standard Package – 69€ : Complete tax return, including an accurate calculation of the tax you owe or the refund you can expect, automatic import of your tax certificate data, and a personalised analysis of your tax optimisation potential.
• Plus Package – 119€ : Includes everything in the Standard Package, plus a manual check by a tax expert to detect possible inconsistencies or missing information.
• Premium Package – 199€ : Includes everything in the Plus Service, plus a 30-minute video consultation with a tax expert.

Additional Services – 59€: Form 190 for rental income and/or Form 700 for the sale of a property.

You can also watch this explanatory video:

Updated on: 03/11/2025