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French Phrase

C'est quoi ton numéro de compte ?

/sɛ kwa tɔ̃ ny.me.ʁ də kɔ̃t/
Meaning"What's your account number?"
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Meaning

This sentence asks someone for their account number, typically a bank or service account. It is informal and used in casual conversation or among people who know each other well.

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When to use

Use this phrase with friends, classmates, or colleagues in a relaxed setting. In a formal or professional context (e.g., speaking to a bank representative), switch to the more polite "Quel est votre numéro de compte ?".

✦Grammar Breakdown

C'estquoitonnumérodecompte?

1

C'est quoi

An informal way to ask "what is..." using the structure C'est + interrogative word. It avoids inversion and is common in spoken French.

2

Possessive adjective (ton)

Ton is the informal singular masculine/feminine possessive adjective meaning "your" (used with friends, peers).

3

Noun phrase "numéro de compte"

A compound noun where "de" links two nouns, similar to "account number" in English.

4

Question without inversion

In spoken French, many questions are formed with "C'est quoi..." rather than the formal inversion "Quel est...".

🗨In Conversation

A

C'est quoi ton numéro de compte ?

What's your account number?

C'est le 12345678.

It's 12345678.

B

✕Common Mistakes

  • C'est quel ton numéro de compte ?

    "Quel" cannot follow "C'est"; use "C'est quoi" or "Quel est".

  • C'est quoi votre numéro de compte ?

    Mixing informal "C'est quoi" with formal "votre" sounds inconsistent; choose either fully informal (ton) or fully formal (Quel est votre...).

  • Quel est ton numéro de compte ?

    While grammatically correct, using "Quel est" with "ton" can feel slightly stiff; speakers often prefer "C'est quoi ton..." in casual speech.

↔Alternatives

  • Quel est ton numéro de compte ?

    What is your account number?

  • Peux-tu me donner ton numéro de compte ?

    Can you give me your account number?

  • Tu peux me dire ton numéro de compte ?

    Can you tell me your account number?

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Cultural Tip

The construction "C'est quoi..." is strictly colloquial. In business emails, phone calls with a bank, or when speaking to strangers, French speakers prefer the more formal "Quel est votre numéro de compte ?". Also, remember that "ton" signals familiarity; using "votre" instantly raises the level of politeness.