How to find work
Comprehensive information on the topic of finding work in Finland can be found on the Info Finland pages.
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Tax
As a rule, all employees must pay income tax. Therefore, you must obtain a tax card (verokortti) from the Tax Office (verotoimisto) for tax withholding. If you work without a tax card, you will be taxed 60 % of your salary.
The most important factor affecting your taxation is the duration of your stay in Finland, namely whether you will stay here for longer than 6 months. If you are uncertain whether you will exceed the 6 months limit, you will be taxed at source during the first months. A tax card will be issued when it has been confirmed that the 6 month limit will be exceeded.
Look into taxation in Finland:
https://www.vero.fi/en/individuals/tax-cards-and-tax-returns/tax_card/