Hi
Related to your field you should perhaps look at joining SKTL (
http://www.sktl.fi/). There are lots of other translators who work as a freelancer, or more precisely as a toiminimi (soletrader). The below assumes that and not that you are just working for several employers as an employee (sometimes people refer to that as freelancing).
Take here for more information on starting a business
http://www.yrityssuomi.fi/web/enterpris ... d/starting
You need to fill in a Y3 form and return it to the PRH
http://www.ytj.fi/english/services/Notification-forms
You should estimate your profit for the year and then you will have to pay taxes based on that during the year (of course things are then corrected afterwards if the amount ends up being wrong, upwards or downwards).
If your total invoiced work will be more than 8500 eur then you need to register for VAT and charge your clients VAT on all invoices (24% starting from January 2013). Then file the regular VAT reports. You can also deduct any VAT charged on expenses related to your business.
Then you should take out YEL pension (this is compulsory if you earn more than ~EUR 7000). This is about 20% of your declared YEL income (this can be different to your actual and your estimate for the tax man, but remember this is the income your benefits would be based on if you claim anything from the YEL).
That is the main things I can think of.
Tony
