Social security: 

Quick guide when you move to Finland – Whether moving to Finland temporarily or permanently, about to start work or looking for work, this guide by KELA (Social Insurance Institution of Finland) covers all the basics on social security.  

General information about social security in Finland – You may also ready about social security in Finland at infoFinland.fi.  

Taxation:  

Taxes and personal finances – Work in Finland 

General information about taxation in Finland – infoFinland.fi  

Work and taxation in Finland - Finnish Tax Administration 

Coming to work for a Finnish employer – Finnish Tax Administration