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# How can I indicate income in another currency?

**It is important to declare all amounts in euros on your tax return.**

Here are the official documents from the tax authorities for the 2025 tax year.
Please use the second column ‘Cours annuel moyen’ for conversion:

[Exchange rates 2025](https://impotsdirects.public.lu/dam-assets/fr/legislation/circulaires/lg-a-60bis-11-du-27012026-taux-de-change-pour-2025.pdf)

|| If the foreign currency exchange rate is not indicated in these documents, use the average annual exchange rate available on the Internet for the relevant tax year. It is recommended that you add an appendix to your tax return with the exchange rates used.

###### Here are the exchange rates for previous tax years: 

[Exchange rates 2024](https://impotsdirects.public.lu/dam-assets/fr/legislation/legi25/lg-a-60bis-10-du-1712025.pdf)

[Exchange rates 2023](https://impotsdirects.public.lu/dam-assets/fr/legislation/legi24/lg-a-60bis-9-du-1012024-taux-de-change-pour-2023.pdf)

[Exchange rates 2022](https://impotsdirects.public.lu/dam-assets/fr/legislation/legi23/circulaire-lg-a-60bis-8-du-16-janvier-2023.pdf)