In 2010, new amendments regarding special education were made to the Finnish Basic Education Act (642/2010), and they were officially adopted in 2011. The three-tiered support system that was introduced can be considered the Finnish approach to moving education toward a more inclusive system since it emphasises all teachers' responsibility to deliver support within the regular educational setting, representing a new feature in the policy documents. This has brought about new expectations for special education teachers' (SETs') roles. Our research aims to contribute to knowledge about the implementation of the three-tiered support system and SETs' roles in Swedish-speaking schools in Finland. The data were collected using a questionnaire (N = 158). The results indicate that the SETs have an important role in the three-tiered support system, both as those with the knowledge and those who share this knowledge. The SETs' role is more evident when it comes to pupils receiving support on the second and third tiers. Although inclusive values are emphasised in the policy documents, the SETs still use most of their time teaching pupils in educational settings that are often relatively segregated (individual or small-group teaching), and for example, co-teaching seems to be a less frequent approach to collaboration.