German Phrase
Was ist meine Kontonummer?
Meaning
Literally, 'What is my account number?'. The speaker is asking a bank employee or a digital service to tell them the number that identifies their bank account.
When to use
Use this sentence when you need to retrieve your account number in a German‑speaking bank, either in person, over the phone, or in an online chat. It is a polite, neutral request that works in both formal and informal contexts, though you will usually pair it with the formal 'Sie' when speaking to staff.
✦Grammar Breakdown
WasistmeineKontonummer?
Was (interrogative pronoun)
Used to ask 'what' in a question; it triggers verb‑first word order in German.
ist (sein, 3rd person singular)
The present tense of 'to be'; in questions it follows the interrogative pronoun directly.
meine (possessive adjective)
Agrees with the feminine noun 'Kontonummer' (die Kontonummer), therefore the ending -e is required.
Kontonummer (noun, feminine)
A compound noun meaning 'account number'; the article would be 'die Kontonummer'.
🗨In Conversation
Was ist meine Kontonummer?
What is my account number?
Ihre Kontonummer lautet 12345678.
Your account number is 12345678.
✕Common Mistakes
Was ist mein Kontonummer?
The noun 'Kontonummer' is feminine, so the possessive adjective must be 'meine'.
Wie ist meine Kontonummer?
While understandable, native speakers prefer 'Wie lautet …' or 'Wie ist meine Kontonummer?' is less idiomatic.
Was ist meine Kontonummer
Missing the question mark can make the sentence look like a statement; punctuation signals the interrogative form.
↔Alternatives
Wie lautet meine Kontonummer?
How does my account number read?
Können Sie mir meine Kontonummer nennen?
Could you tell me my account number?
Bitte teilen Sie mir meine Kontonummer mit.
Please let me know my account number.
Cultural Tip
In German banks, customers are usually addressed with the formal 'Sie'. When you ask for personal data like a Kontonummer, the teller will first verify your identity (e.g., ask for a passport or Personalausweis). It is common to receive the number in writing on a slip of paper rather than spoken aloud, especially for security reasons. Also, note that the word 'Kontonummer' is always feminine, so the possessive adjective must be 'meine', not 'mein'.