> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.taxx.lu/sitemap.xml
> Use this file to discover available pages before exploring further.
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# Do I need to complete a tax return as a single person?

It depends on your circumstances: your income, the number of employers you have, income from several countries, etc. In some cases, filing a tax return is compulsory; in others, it is optional but may enable you to claim a refund of overpaid tax.