K - Kela
"Kela manages social security services and benefits, such as the national pension, child benefit, basic unemployment security, sickness and parenthood allowance, income support and rehabilitation. Kela also provides health care benefits paid for private health care.” https://www.infofinland.fi/en/living-in-finland/settling-in-finland/finnish-social-security
The system might be difficult to understand when you just move to Finland, especially if your partner never really has had to deal with it. One thing that is quite unclear for many foreigners is the link between KELA and TE-toimisto. As of when we are writing this article (Spring 2020), KELA and TE are two different entities. Being a client of TE-toimisto (the agency that helps you look for a job) doesn’t entitle you to any benefits from KELA. Benefits depend on your own personal situation, and we strongly advise you to not base your plans on what you’ve heard or read online when it comes to money, benefits and support that you could or couldn’t receive from KELA.