tulonlajeihin

Tulonlajeihin is a Finnish illative plural form of the compound noun tulonlaji, which translates roughly as “income type” or “category of income.” The base tulonlaji is formed from tulon- (the genitive form of tulo, income) and laji (type or kind). In standard Finnish, the nominative plural is tulonlajit, while the illative plural form tulonlajeihin expresses movement toward or inclusion in specific income categories within a sentence or list. The form is a grammatical inflection rather than a standalone lexical item; dictionaries typically list tulonlaji as the lemma, with tulonlajit and tulonlajeihin as inflected forms.

Usage and context: Tulonlajeihin occurs mainly in formal, technical Finnish—particularly in taxation, economics, and statistical texts—where income is categorized for analysis or regulation. It is part of a broader taxonomy that includes other income types such as ansiotulot (earned income) and pääomatulot (capital income). Because it is a specialized term, its use is largely restricted to contexts where readers are familiar with Finnish fiscal terminology.

Notes: In everyday language, more general phrases about income categories might be used, but tulonlajeihin appears in official discourse and policy documents. Understanding this form helps in reading Finnish tax and statistical materials that classify different sources of income. See also tulonlaji, tulonlajit, ansiotulot, pääomatulot.