40 days until 31 December 2024. Final deadline for your 2023 tax return! Fill it in here.

No need to be a tax expert to file your tax return in Luxembourg!

Register now to file your tax return with many benefits!

Already registered? Login

Try taxx.lu now!

Sign-up for free

Create an account, complete your return and simulate your tax refund!

The leader in online tax filing!

On your side since 2018 with:

Discover and test all our simulators

All our simulators

Tax Office, Outstanding balance insurance, Travel Expenses, Main Residence, Opti-Score...

Save time. Save money. Save stress.

The benefits of taxx.lu

Download the taxx.lu Scanner app

Avoid entering all your data manually and import your certificates automatically using our app!

Save time!

  • Auto Scan automatically completes your declaration!

    Import your tax certificates and your return is filled in like magic. Avoid manual input.

  • Import your previous year's declaration!

    New at taxx.lu? Import last year's PDF form and start this year's tax return half-filled.

Save money!

  • Reduce your taxes thanks to the Opti-Score!

    Based on your tax return, taxx.lu determines your Opti-Score, which allows you to see at a glance how to reduce your taxes.

  • Know your refund potential!

    taxx.lu immediately calculates the amount of tax to be reclaimed or paid! No surprises and easy to check the administration's calculations.

Save stress!

  • An efficient customer service at your disposal!

    Do you have a question about your situation or your tax return? Contact our team, who are happy to answer your questions.

  • Available for residents and cross-border commuters!

    taxx.lu allows everyone to fill in their tax return, thanks to forms that adapt to your specific situation.

Made in Luxembourg label

Label "Made in Luxembourg"
Creative Young Entrepreneur Luxembourg logo

Second winner CYEL 2019
Success Story logo

Success story 2020
Success Story logo

Best UI/UX Design of the Year 2022

Information and advice on taxation

News & tips

Find answers to all your questions about taxation and how to use taxx.lu!

Your tax return guide in Luxembourg

Frequently Asked Questions

Find answers to all your questions about taxation and how to use taxx.lu!