vierteljährlich
quarterly
Something that takes place, happens, or is due every three months or four times a year.
Die Miete für das Büro wird vierteljährlich im Voraus bezahlt.
The rent for the office is paid quarterly in advance.

quarterly
Loading your saved state.
quarterly
Something that takes place, happens, or is due every three months or four times a year.
Die Miete für das Büro wird vierteljährlich im Voraus bezahlt.
The rent for the office is paid quarterly in advance.

The word is made up of 'Viertel' (a quarter, ¼) and 'jährlich' (yearly). So it literally means 'a quarter of a year', which corresponds to exactly three months.
Die Firma veröffentlicht vierteljährlich einen neuen Geschäftsbericht.
The company publishes a new business report quarterly.
'Vierteljährlich' (quarterly) can stand before a noun as an adjective or describe a verb as an adverb. As an adjective, it is declined; as an adverb, it remains unchanged.
Die vierteljährliche Zahlung ist am ersten April fällig.
The quarterly payment is due on the first of April.
This word is often used in business or administrative contexts. Typical collocations are: 'eine vierteljährliche Abrechnung' (a quarterly statement), 'ein vierteljährlicher Bericht' (a quarterly report), or 'eine vierteljährliche Gebühr' (a quarterly fee).
Der vierteljährliche Newsletter informiert über alle Neuigkeiten.
The quarterly newsletter provides information about all the latest news.
annual / yearly
'jährlich' and 'vierteljährlich' describe how often something happens or is due. The difference is in the frequency: 'jährlich' means once per year, while 'vierteljährlich' means every three months, or four times per year. The words can be confused because both have to do with the year. A practical tip: with 'jährlich', there is one date in the year; with 'vierteljährlich', there are four dates in the year.

Die Schule verschickt vierteljährlich einen Bericht an die Eltern.
The school sends a report to the parents quarterly.
Emma besucht ihre Großeltern jährlich im Sommer.
Emma visits her grandparents every year in the summer.