German Phrase
Wann muss ich die Kaution zahlen?
Meaning
The sentence asks for the exact moment when the speaker is required to pay the rental deposit. It is a typical question in the context of signing a lease or moving into a new apartment.
When to use
Use this phrase when you are negotiating a rental contract, during a house‑viewing, or when you have just signed a lease and need clarification on the payment schedule for the security deposit.
✦Grammar Breakdown
WannmussichdieKautionzahlen?
Wann (question word)
‘Wann’ asks for a point in time and is placed at the beginning of the sentence.
Modalverb ‘muss’
‘muss’ is the 1st/3rd person singular present of ‘müssen’ and forces the infinitive verb to the end.
Subjekt‑Verb‑Objekt (SVO) in Fragen
In yes/no and ‘W‑’ questions the finite verb stays in second position, the infinitive moves to the sentence end.
Artikel + Nomen (die Kaution)
‘Kaution’ is a feminine noun; in the accusative it takes the definite article ‘die’.
Infinitiv ‘zahlen’
The main verb appears in its infinitive form at the end of the clause after a modal verb.
🗨In Conversation
Wann muss ich die Kaution zahlen?
When do I have to pay the deposit?
Du kannst sie bei der Vertragsunterzeichnung überweisen.
You can transfer it when you sign the contract.
✕Common Mistakes
Wann muss ich die Kaution zu zahlen?
After a modal verb you do NOT add ‘zu’; the infinitive stands alone.
Wann müssen ich die Kaution zahlen?
In the 1st person singular the modal verb is ‘muss’, not ‘müssen’.
Wann muss ich der Kaution zahlen?
If you use the dative case (e.g., ‘der Kaution’), the meaning changes; the deposit is the object, so accusative ‘die’ is required.
↔Alternatives
Ab wann soll ich die Kaution bezahlen?
From when should I pay the deposit?
Zu welchem Zeitpunkt muss ich die Kaution zahlen?
At what point do I need to pay the deposit?
Wann ist die Zahlung der Kaution fällig?
When is the deposit payment due?
Cultural Tip
In Germany a Kaution (security deposit) can be up to three months’ cold rent. Landlords usually ask for it before you move in, often via bank transfer, and they must keep it in a separate, interest‑bearing account. Make sure you get a written receipt; the deposit is returned after the tenancy ends, provided there is no damage.