European countries have different educational budget systems. The ministries of education may fund schools directly or via school boards, or through regional or municipal educational institutes. The costs for the education may be specifically earmarked by ministries and/or municipalities, or not earmarked at all. 

In Sweden and Finland, the governments provide financial support for HLE via the municipalities. In the Netherlands, there has been no such funding since 2004, when the act on home language education (OALT) was withdrawn. However, the lump sum model used in the Netherlands allows school boards to fund mother tongue classes.

Often parents are asked to carry the burden of the expenses. 

Also embassies, private entities, religious or cultural institutes can be a source of funding language classes -if the taught languages correspond to standardised languages.

Obviously, introducing the 2+1 language policy in schools, with all possible mother tongues as the third language, the logistics and the financing is a huge challenge. Schools are advised to try to get financial support from the government.

Presently, there is no common budget policy proclaimed by the EU to realize the 2+1 language policy.