AbstractThis research is motivated by the purpose of describing the types of interference in the special edition of Tempo magazine on independence day 20-26 August 2018, describing the form of language used in the interference on this Tempo magazine, and the influence of interference on the development of Indonesian language in the Tempo magazine. The method used is the synchronic description method, supported by the observation method and the split method. The results of the research conducted, found the types of interference from this Tempo magazine, namely types of phonological interference, types of morphological interference, types of syntactic interference, and types of semantic interference. In the discussion, the type of interference that dominates is the type of syntactic interference in the field of sentence structure. The form of language which is an interference found in Tempo magazine is sentences, clauses, phrases, words, morphemes, and phonemes. The language used in this interference is the language that comes from Javanese, English and Jakarta dialects.Keywords: interference type, language form, magazine.